Reliability Test Report on CWDM Filter

Contents
1 Introduction
2 Scope
3 Sampling methods
4 Test conditions
5 Pass/Fail criteria
6 Test results
6.1 Mechanical Shock (Impact Test)
6.2 Variable Frequency Vibration Test
6.3 Thermal Shock Test
6.4 High Temperature Storage Test (Dry Heat)
6.5 High Temperature Storage Test (Damp Heat)
6.6 Low Temperature Storage Test
6.7 Temperature Resistance Test
6.8 Cyclic Moisture Resistance Test
6.9 Water Immersion Test

LIST OF TABLES
Table 1. CWDM filter mechanical shock test results
Table 2. CWDM filter variable frequency vibration test results
Table3. CWDM filter high temperature storage test (dry heat) results
Table4. CWDM filter high temperature (damp) storage test results
Table5. CWDM filter low temperature storage test results
Table6. CWDM filter temperature cycling test results
Table7. CWDM filter cycling moisture resistance test results
Table8. CWDM filter water immersion test results

LIST OF FIGURES
Figure 1. CWDM filter mechanical shock test results
Figure 2. CWDM filter variable frequency vibration test results
Figure 3. CWDM filter high temperature storage test (dry heat) results
Figure 4. CWDM filter high temperature (damp) storage test results
Figure 5. CWDM filter low temperature storage test results
Figure 6. CWDM filter temperature cycling test results
Figure 7. CWDM filter cycling moisture resistance test results
Figure 8. CWDM filter water immersion test results

1.0 Introduction
The major intent of the qualification test report is to demonstrate that the reliability test on CWDM
filter products in Hopecom has met the respective industrial standards.
The report has determined the performance of product under environmental and mechanical
conditions defined in Bellcore GR-1221-CORE (Issue 2, Jan . 1999): Generic reliability Assurance
Requirements for Passive Optical components, and Bellcore GR-1209-CORE (Issue 2, Feb.1998):
Generic Requirements for Fiber Optic Branching Components.

2.0 Scope
The report covers all results on the following tests:
l. Mechanical Shock (Impact Test)
2. Variable Frequency Vibration Test
3. High Temperature Storage Test (Dry Heat)
4. High Temperature Storage Test (Damp Heat)
5. Low Temperature Storage Test
6. Temperature Cycling Test
7. Cyclic Moisture Resistance Test
8. Water Immersion Test
The Thermal Shock Test is m schedule for testing.

3.0 Sampling methods
All the samples of CWDM filters are random collected from mass production lot. Characteristics
are carefully measured during each stages of testing, For each test procedure, the sample size is 11 pcs.

4.0 Test conditions
4.1 Mechanical Shock (Impact Test)
Refer to Section 6.2.1 of GR-1221-CORE, issue 2, JANUARY 1999
The Mechanical Shock (Impact Test) test, performed by 803 Academic Institution (10/26/2001) is based on the procedures stated in EIA/TIA-455-2A for light service applications, with the following conditions:
Drop Height: 1.8 meters (6 feet)
Number of drops per three mutually perpendicular axes: 8
Number of repetitions of impact test cycle:

4.2 Variable Frequency Vibration Test
Refer to Section 6.2.2 of GR-1221-CORE, issue 2, JANUARY 1999
The variable frequency vibration test, performed by 803 Academic Institution (10/26/2001) is based on the procedures stated in EIA/TIA-455-11A, test condition IV, with the following conditions:
Vibration Type: SinuDWFdal
Frequency: 10 to 2000 Hz
Accel. (Or Amplitude): 20G(or 1.52 mm or 0.060 in double amplitude), whichever is loss.
Sweep Time: 10 to 2000 Hz and returned to 10 Hz in 20 minutes.
Duration: Sweep cycle performed 12 times in each of three mutually perpendicular directions (total of 36 times).

4.3 Thermal Shock Test
Refer to Section 6.2.3 of GR-1221-CORE,issue 2, JANUARY 1999
The thermal shock test (unperformed), is based on the procedures stated in EIA/TIA-455-71, with the following conditions:
Temperature Range: △T=100℃(witlin the operating temperature range of the
device under test)
Extremes Dwell Times: ≥30 minutes at temperature
Transfer Time: ≤2 minutes
Number of Cycles: 20

4.4 High Temperature Storage Test (Dry Heat)
Refer to Section 6.2.4 of GR-1221-CORE,issue 2, JANUARY 1999
The high temperature storage test is based on the procedures stated in ELA/TLA-455-4A, test condition IV, with the following conditions:
Temperature: 85°C (±2°C)
Humidity: <40%( RH)
Duration: 168hrs, 500hrs, 1000hrs and 2000hrs.
Equipment: TERCHY, MHG-150LR, automatically controlled temperature/humidity test chamber. Terchy Environmental Technology LTD. Taiwan.

4.5 High Temperature Storage Test (Damp Heat)
Refer to Section 6.2.5 of GR-1221-CORE,issue 2, JANUARY 1999
The high temperature storage (damp heat) test is based on the procedure states in EIA/TLA-455-5A. test type 1, with the following conditions:
Temperature: 75°C (±2°C)
Humidity: 90%(±5%)
Duration: 168hrs, 500hrs, l000hrs and 2000hrs.
Equipment: TERCHY,MHG-150LR,automatically controlled temperature/humidity test
chamber. Terchy Environmental Technology LTD. Taiwan.

4.6 Low Temperature Storage Test
Refer to Section 6.2.6 of GR-1221-CORE, issue 2, JANUARY 1999
The low temperature storage test is based on the procedures stated in EIA/TLA-455-4A, with the following conditions:
Temperature: -40°C (±5°C)
Humidity: Uncontrolled
Duration: 168hrs, 500hrs, l000hrs and 2000hrs
Equipment: TERCHY, MHG-150LR, automatically controlled temperature/humidity test chamber. Terchy Environmental Technology LTD., Taiwan.

4.7 Temperature Cycling Test
Refer to Section 6.2.7 of GR-1221-CORE, issue 2, JANUARY 1999
The procedures stated in MIL-STD- 883, Methodl010 (or EIA/TIA-455-3A) with the following conditions:
Temperature: -40°C to 85°C (±2°C)
Dwell time at extremes: ≥15 minutes
Transition rate: Approximately 1°C /minutes
Number of cycles: 500 for pass/fail, 1000 for information.
Equipment: TERCHY, MHG-150LR, automatically controlled temperature/Humidity test chamber. Terchy Environmental Technology LTD.Taiwan.

4.8 Cyclic Moisture Resistance Test
Refer to Section 6.2.8 of GR-1221-CORE,issue 2, JANUARY 1999
The Cyclic Moisture Resistance (temperature humidity cycling) test is stated in MIL-STD-883, method 1004, with following conditions:
Temperature Profile: Refer to Figure below
Relative Humidity: 90% at 75°C; uncontrolled at 25°C & -40°C
Dwell Time at Extremes: 3 hours
Number of Cycles: 5 complete cycles (each complete cycle has 5 sub-cycles)
Equipment: TERCHY MHG-150LR, automatically controlled temperature/humidity
test chamber. Terchy Environmental Technology LTD., Taiwan.

4.9 Water Immersion Test
Refer to Section 4.1.3 of GR-1209-CORE,issue 2, FEBRUARY 1998
The distilled water immersion test is based on the procedures states in EIA/TIA- 455-12A. with the following conditions:
Test Temperature: 43°C (±2°C)
Water PH: 5.5(±0.5)
Test Duration: 168Hours
Equipment: TERCHY, MHG-150LR, automatically controlled temperature/Humidity test chamber. Terchy Environmental Technology LTD. Taiwan.

5.0 Pass/Fail criteria
Bellcore proposes the criteria for determining the failure of a device as exceeding the maximum (or minimum) specifications. which are summarized in the following table:

Parameter Unit Max. Changed Value for Failure Criterion
Insertion Loss of Pass Channel dB 0.4
Insertion Loss of Reflect Channel dB 0.4
Isolation in Pass Channel dB 3
Center Wavelength Drift nm 0.1

6.0 Test Results
6.1 Mechanical Shock (Impact Test)
After test, all samples have passed this procedure. No failure was observed. Test results are shown in the following tables and figures.
6.2 Variable Frequency Vibration Test
After test, all samples have passed this procedure. No failure was observed. Test results are shown in the following tables and figures.
6 3 Thermal Shock Test (not performed yet)
6.4 High Temperature Storage Test (Dry Heat)
Measurements were made at 168 hrs, 500hrs, l000hrs, 2000hrs, for the high temperature storage test. All samples have met the requirement and passed this procedure. Test results are shown in the following tables and figures.
6.5 High Temperature Storage Test (Damp Heat)
For high temperature storage (Damp Heat) test, after168hrs. 500hrs, l000hrs, 2000hrs, as required, all samples have passed the temperature storage test and meet the criteria. Test results are shown in the following tables and figures.
6.6 Low Temperature Storage Test
Measurements were made at 168 hours, 500hrs, 1000hrs. 2000hrs, for the low temperature storage test. All samples have passed this procedure. No failure was observed. Test results are shown in the following tables and figures.
6.7 Temperature Cycling Test
For temperature cycling test, after l00cls, 500cycles as required all samples have passed the temperature cycling test and met the criteria. Test results are shown in the following tables and figures.
6,8 Cyclic Moisture Resistance Test
After test. all samples have passed this procedure. No failure was observed. Test results are shown in the following tables and figures
6.9 Water Immersion Test
After test, all samples have passed this procedure. No failure was observed. Test results are shown in the following tables and figures

Table l. CWDM filter mechanical shock test results
a.insertion Loss

Unit: dB

Item Insertion loss of pass channel Insertion loss of reflect channel
No. Before test After test Change Before test After test Change
CWF-210815B07 0.31 0.45 0.14 0.25 0.34 0.09
CWF-210816B10 0.47 0.52 0.05 0.31 0.35 0.04
CWF-210818A04 0.38 0.44 0.06 0.28 0.32 0.05
CWF-210818B09 0.35 0.42 0.07 0.23 0.33 0.10
CWF-210820A02 0.45 0.46 0.01 0.30 0.32 0.02
CWF-210804A10 0.42 0.48 0.06 0.31 0.35 0.04
CWF-210806A06 0.39 0.45 0.06 0.26 0.30 0.04
CWF-210808B02 0.45 0.48 0.03 0.34 0.39 0.05
CWF-210808B09 0.37 0.49 0.12 0.30 0.37 0.07
CWF-210811A02 0.41 0.46 0.05 0.28 0.34 0.06
CWF-210813B01 0.37 0.43 0.06 0.32 0.39 0.07

b.Isolation

Unit: dB

Item Isolation in pass channel
No. Before test After test Change
CWF-210815B07 31 30.5 0.5
CWF-210816B10 30 30 0
CWF-210818A04 34 33.5 0.5
CWF-210818B09 33 31 2
CWF-210820A02 32 32 0
WF-210804A10 31 30 1
CWF-210806A06 34 32 2
CWF-210808B02 35 33 2
CWF-210808B09 33 32 1
CWF-210811A02 32 30.5 1.5
CWF-210813B01 32 30.5 1.5

C. Center Wavelength Accuracy

Unit: nm

Item Center Wavelength (λc-λ ITU)
No. Before test After test Change
CWF-210815B07 0.25 0.30 0.05
CWF-210816B10 0.33 0.37 0.07
CWF-210818A04 0.45 0.48 0.03
CWF-210818B09 0.31 0.39 0.08
CWF-210820A02 0.28 0.35 0.07
WF-210804A10 0.45 0.51 0.06
CWF-210806A06 0.38 0.45 0.07
CWF-210808B02 0.42 0.52 0.10
CWF-210808B09 0.30 0.41 0.11
CWF-210811A02 0.21 0.30 0.09
CWF-210813B01 0.18 0.29 0.11

Fig.l CWDM filter mechanical shock test results

Table 2. CWDM filter variable frequency vibration test results
a.insertion Loss

Unit: dB

Item Insertion loss of pass channel Insertion loss of reflect channel
No. Before test After test Change Before test After test Change
CWF-210823A05 0.34 0.42 0.08 0.30 0.35 0.05
CWF-210824A10 0.40 0.46 0.06 0.31 0.35 0.04
CWF-210826A03 0.33 0.42 0.09 0.33 0.38 0.05
CWF-210826B10 0.42 0.52 0.10 0.34 0.41 0.04
CWF-210828B02 0.36 0.44 0.08 0.27 0.34 0.07
CWF-210801A04 0.38 0.43 0.05 0.31 0.37 0.06
CWF-210802B11 0.39 0.53 0.14 0.24 0.30 0.06
CWF-210803A05 0.46 0.60 0.14 0.27 0.36 0.09
CWF-210803A09 0.33 0.46 0.03 0.28 0.37 0.09
CWF-210803B05 0.37 0.49 0.12 0.26 0.37 0.11
CWF-210805B04 0.42 0.53 0.11 0.24 0.33 0.09

b.Isolation

Unit: dB

Item Isolation in pass channel
No. Before test After test Change
CWF-210823A05 32 31 1
CWF-210824A10 35 33 2
CWF-210826A03 33 31 2
CWF-210826B10 34 33 1
CWF-210828B02 32 30.5 1.5
CWF-210801A04 36 35 1
CWF-210802B11 35 34 1
CWF-210803A05 34 32 2
CWF-210803A09 33 32 1
CWF-210803B05 36 34 2
CWF-210805B04 34 32 2

C. Center Wavelength Accuracy

Unit: nm

Item Center Wavelength (λc-λ ITU)
No. Before test After test Change
CWF-210823A05 0.33 0.36 0.03
CWF-210824A10 0.45 0.52 0.07
CWF-210826A03 0.38 0.51 0.13
CWF-210826B10 0.34 0.42 0.08
CWF-210828B02 0.25 0.39 0.14
CWF-210801A04 0.41 0.53 0.12
CWF-210802B11 0.31 0.43 0.12
CWF-210803A05 0.26 0.35 0.09
CWF-210803A09 0.51 0.56 0.05
CWF-210803B05 0.56 0.62 0.08
CWF-210805B04 0.47 0.58 0.11

Fig.2 Measurement results in variable frequency vibration test

CWDM filter variable frequency vibration test results - insertion loss of pass channel
CWDM filter variable frequency vibration test results - insertion loss of reflect channel
CWDM filter variable frequency vibration test results - isolation in pass channel
CWDM filter variable frequency vibration test results - Central wavelength drift of pass channel

Table 3. CWDM filter temperature storage test (dry heat) results
al. Insertion Loss of pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210905A10 0.35 0.40 0.47 0.49 0.51 0.15
CWF-210927A08 0.40 0.45 0.47 0.50 0.52 0.12
CWF-210905B03 0.42 0.45 0.51 0.53 0.54 0.12
CWF-210905A02 0.36 0.39 0.44 0.46 0.49 0.13
CWF-210928B18 0.32 0.36 0.39 0.42 0.45 0.13
CWF-210904B23 0.35 0.38 0.45 0.46 0.49 0.14
CWF-210904B20 0.42 0.43 0.48 0.52 0.54 0.12
CWF-210904B27 0.43 0.46 0.47 0.47 0.50 0.07
CWF-210927A13 0.37 0.42 0.43 0.44 0.46 0.09
CWF-210927A08 0.35 0.41 0.42 0.42 0.44 0.09
CWF-210905B12 0.34 0.39 0.40 0.42 0.42 0.08

a2. Insertion Loss of reflect channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210905A10 0.25 0.27 0.30 0.32 0.34 0.09
CWF-210927A08 0.24 0.28 0.29 0.31 0.36 0.12
CWF-210905B03 0.28 0.30 0.31 0.34 0.37 0.09
CWF-210905A02 0.31 0.33 0.34 0.39 0.43 0.12
CWF-210928B18 0.30 0.32 0.34 0.38 0.43 0.13
CWF-210904B23 0.26 0.28 0.32 0.36 0.40 0.14
CWF-210904B20 0.30 0.31 0.33 0.35 0.43 0.13
CWF-210904B27 0.31 0.34 0.36 0.39 0.42 0.11
CWF-210927A13 0.23 0.27 0.33 0.35 0.38 0.15
CWF-210927A08 0.20 0.25 0.27 0.30 0.32 0.12
CWF-210905B12 0.24 0.26 0.28 0.28 0.30 0.06

b. Isolation in pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210905A10 32 32 30.5 31 29.5 2.5
CWF-210927A08 33 34 32 31.5 31 2
CWF-210905B03 32 29 28.5 30.5 32 0
CWF-210905A02 33 32 32 31 31 2
CWF-210928B18 31 29 30.5 32 29.5 1.5
CWF-210904B23 30 30.5 31 32 32.5 2.5
CWF-210904B20 34 32 33 32 31.5 2.5
CWF-210904B27 32 31 30 33 32.5 0.5
CWF-210927A13 35 32 32 31.5 33 2
CWF-210927A08 31 28 29 31 30 1
CWF-210905B12 30 32 32.5 32 9 1

C.Center Wavelength Accuracy

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210905A10 0.27 0.29 0.30 0.33 0.40 0.13
CWF-210927A08 0.36 0.38 0.42 0.41 0.47 0.11
CWF-210905B03 0.42 0.45 0.50 0.49 0.52 0.10
CWF-210905A02 0.29 0.32 0.35 0.34 0.36 0.07
CWF-210928B18 0.35 0.37 0.38 0.37 0.48 0.13
CWF-210904B23 0.42 0.45 0.44 0.47 0.56 0.14
CWF-210904B20 0.51 0.53 0.50 0.56 0.60 0.09
CWF-210904B27 0.35 0.42 0.41 0.51 0.45 0.10
CWF-210927A13 0.33 0.37 0.36 0.48 0.45 0.12
CWF-210927A08 0.41 0.45 0.42 0.50 0.47 0.06
CWF-210905B12 0.38 0.45 0.41 0.47 0.49 0.11

Fig.3 Measurement results in temperature storage (dry heat) test

CWDM filter temperature storage test (dry heat) results - Insertion loss of pass channel
CWDM filter temperature storage test (dry heat) results - Insertion loss of reflect channel
CWDM filter temperature storage test (dry heat) results - Isolation in pass channel

Table 4. CWDM filter high temperature storage test results ( damp heat)
al. Insertion Loss of pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210909C23 0.40 0.45 0.48 0.53 0.54 0.14
CWF-210909C02 0.37 0.39 0.44 0.47 0.52 0.15
CWF-210909C05 0.42 0.45 0.51 0.52 0.61 0.19
CWF-210908A10 0.43 0.53 0.54 0.61 0.67 0.24
CWF-210908B13 0.34 0.40 0.48 0.53 0.59 0.25
CWF-210908B16 0.38 0.41 0.43 0.48 0.54 0.16
CWF-210908B20 0.33 0.35 0.46 0.49 0.55 0.22
CWF-210909A27 0.41 0.45 0.52 0.56 0.64 0.23
CWF-210908A15 0.36 0.40 0.45 0.49 0.60 0.24
CWF-210909C08 0.34 0.36 0.41 0.47 0.55 0.21
CWF-210908C10 0.41 0.46 0.48 0.56 0.59 0.18

a2. Insertion Loss of reflect channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210909C23 0.31 0.34 0.38 0.43 0.50 0.19
CWF-210909C02 0.25 0.29 0.34 0.37 0.43 0.18
CWF-210909C05 0.27 0.30 0.36 0.40 0.48 0.21
CWF-210908A10 0.30 0.39 0.40 0.40 0.47 0.17
CWF-210908B13 0.31 0.33 0.40 0.41 0.52 0.21
CWF-210908B16 0.24 0.30 0.32 0.35 0.38 0.14
CWF-210908B20 0.32 0.39 0.41 0.44 0.54 0.22
CWF-210909A27 0.30 0.35 0.40 0.43 0.49 0.19
CWF-210908A15 0.23 0.29 0.31 0.37 0.38 0.15
CWF-210909C08 0.22 0.25 0.30 0.34 0.42 0.20
CWF-210908C10 0.24 0.32 0.34 0.40 0.52 0.28

b. Isolation in pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210909C23 30 32 32.5 32 32 2
CWF-210909C02 32 31 30.5 32 30.5 1.5
CWF-210909C05 35 31 32 32 33 2
CWF-210908A10 33 33 30 31 31.5 1.5
CWF-210908B13 32 30.5 28.5 29 30.5 1.5
CWF-210908B16 29 30 31 30.5 30 1
CWF-210908B20 32 32 33 32 30.5 1.5
CWF-210909A27 31 32 30.5 29 29.5 1.5
CWF-210908A15 28 30.5 30 30 28.5 0.5
CWF-210909C08 31 31 29 28 30 1
CWF-210908C10 32 31.5 32 34 30 2

C.Center Wavelength Accuracy

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210909C23 0.24 0.28 0.32 0.33 0.29 0.05
CWF-210909C02 0.47 0.45 0.50 0.51 0.56 0.09
CWF-210909C05 0.45 0.48 0.51 0.52 0.48 0.03
CWF-210908A10 0.32 0.35 0.42 0.42 0.48 0.16
CWF-210908B13 0.39 0.43 0.45 0.47 0.53 0.14
CWF-210908B16 0.42 0.46 0.49 0.52 0.49 0.07
CWF-210908B20 0.30 0.33 0.35 0.41 0.45 0.15
CWF-210909A27 0.50 0.52 0.55 0.53 0.49 0.01
CWF-210908A15 0.41 0.43 0.47 0.47 0.50 0.09
CWF-210909C08 0.46 0.49 0.53 0.51 0.55 0.09
CWF-210908C10 0.44 0.46 0.55 0.48 0.51 0.07

Fig.4 Measurement results in high temperature storage (damp heat) test

CWDM filter high temperature storage test results ( damp heat) - insertion loss of pass channel
CWDM filter high temperature storage test results ( damp heat) - insertion loss of reflect channel
CWDM filter high temperature storage test results ( damp heat) - Central wavelength drift of pass channel

Table 5. CWDM filter low temperature storage test results
al. Insertion Loss of pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210723A05 0.42 0.44 0.47 0.50 0.55 0.13
CWF-210723B07 0.33 0.37 0.40 0.39 0.39 0.06
CWF-210724B06 0.40 0.42 0.45 0.50 0.54 0.14
CWF-210725B11 0.37 0.39 0.44 0.48 0.53 0.16
CWF-210726A02 0.35 0.39 0.44 0.47 0.48 0.13
CWF-210726B04 0.34 0.36 0.39 0.45 0.46 0.12
CWF-210728B03 0.35 0.38 0.42 0.47 0.47 0.12
CWF-210728B10 0.42 0.48 0.51 0.50 0.57 0.15
CWF-210801A04 0.33 0.42 0.47 0.51 0.48 0.15
CWF-210803A01 0.43 0.44 0.48 0.52 0.52 0.09
CWF-210804A08 0.38 0.36 0.39 0.43 0.45 0.07

a2. Insertion Loss of reflect channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210723A05 0.24 0.25 0.30 0.35 0.41 0.17
CWF-210723B07 0.20 0.23 0.30 0.31 0.39 0.19
CWF-210724B06 0.27 0.30 0.31 0.33 0.40 0.13
CWF-210725B11 0.31 0.33 0.36 0.36 0.47 0.16
CWF-210726A02 0.32 0.35 0.40 0.42 0.47 0.15
CWF-210726B04 0.26 0.32 0.38 0.39 0.36 0.10
CWF-210728B03 0.23 0.26 0.28 0.31 0.35 0.12
CWF-210728B10 0.25 0.29 0.33 0.36 0.34 0.09
CWF-210801A04 0.26 0.28 0.30 0.35 0.35 0.13
CWF-210803A01 0.30 0.36 0.39 0.38 0.44 0.14
CWF-210804A08 0.31 0.33 0.37 0.35 0.40 0.09

b. Isolation in pass channel

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210723A05 33 34 33 31.5 32 1
CWF-210723B07 34 31 32.5 32 32.5 1.5
CWF-210724B06 34 32 32 33 32 2
CWF-210725B11 35 34 34 33.5 33 2
CWF-210726A02 32 30.5 31 31.5 30 2
CWF-210726B04 36 36 35 34 34 2
CWF-210728B03 30 31 31 32 31.5 1.5
CWF-210728B10 31 30.5 32 31 30.5 0.5
CWF-210801A04 33 31 31 32.5 32 1
CWF-210803A01 32 30.5 30 31.5 30 2
CWF-210804A08 30 31.5 30 31 31 1

c. Center Wavelength Accuracy

Unit: dB

No. Initial After 168hrs After 500hrs After 1000hrs After 2000hrs Change
CWF-210723A05 0.43 0.45 0.51 0.48 0.51 0.07
CWF-210723B07 0.52 0.49 0.48 0.51 0.49 0.03
CWF-210724B06 0.38 0.32 0.35 0.42 0.45 0.07
CWF-210725B11 0.46 0.50 0.48 0.47 0.45 0.01
CWF-210726A02 0.55 0.51 0.53 0.58 0.62 0.07
CWF-210726B04 0.47 0.49 0.51 0.52 0.57 0.10
CWF-210728B03 0.26 0.30 0.28 0.31 0.27 0.01
CWF-210728B10 0.35 0.40 0.39 0.42 0.43 0.08
CWF-210801A04 0.44 0.47 0.52 0.47 0.51 0.07
CWF-210803A01 0.41 0.45 0.50 0.43 0.47 0.06
CWF-210804A08 0.45 0.46 0.52 0.48 0.50 0.05

Fig.5 Measurement results in low temperature storage test

CWDM filter low temperature storage test results - insertion loss of reflect channel
CWDM filter low temperature storage test results - isolation in pass channel
CWDM filter low temperature storage test results - Central wavelength drift of pass channel

Table 6. CWDM filter temperature cycling test results
al. Insertion Loss of pass channel

Unit: dB

No. Initial After 100 cycles After 500 cycles Change
CWF-210915A25 0.43 0.53 0.67 0.24
CWF-210917B15 0.34 0.55 0.63 0.29
CWF-210925A24 0.35 0.47 0.58 0.23
CWF-210905B20 0.40 0.52 0.59 0.19
CWF-210907A21 0.37 0.44 0.48 0.11
CWF-210909A26 0.40 0.52 0.63 0.23
CWF-210915B23 0.34 0.44 0.58 0.24
CWF-210905A22 0.43 0.55 0.67 0.24
CWF-210905B28 0.38 0.43 0.60 0.22
CWF-210907B19 0.39 0.44 0.54 0.19
CWF-210915A22 0.41 0.50 0.62 0.21

a2. Insertion Loss of reflect channel

Unit: dB

No. Initial After 100 cycles After 500 cycles Change
CWF-210915A25 0.25 0.38 0.49 0.24
CWF-210917B15 0.31 0.41 0.51 0.20
CWF-210925A24 0.33 0.44 0.55 0.22
CWF-210905B20 0.32 0.45 0.59 0.27
CWF-210907A21 0.30 0.42 0.49 0.19
CWF-210909A26 0.34 0.43 0.53 0.19
CWF-210915B23 0.28 0.37 0.48 0.20
CWF-210905A22 0.30 0.39 0.52 0.22
CWF-210905B28 0.34 0.45 0.50 0.60
CWF-210907B19 0.33 0.44 0.48 0.15
CWF-210915A22 0.35 0.41 0.52 0.17

b. Isolation in pass channel

Unit: dB

No. Initial After 100 cycles After 500 cycles Change
CWF-210915A25 32 32 31.5 0.5
CWF-210917B15 31.5 30.5 30 1.5
CWF-210925A24 32.5 31 30.5 2
CWF-210905B20 33 32.5 31 2
CWF-210907A21 30 29.5 30.5 0.5
CWF-210909A26 34 33 32.5 1.5
CWF-210915B23 35 34 33.5 1.5
CWF-210905A22 33.5 32 31 2.5
CWF-210905B28 32 32.5 32 0
CWF-210907B19 30 31 31 1
CWF-210915A22 34 32 33.5 0.5

c. Center Wavelength Accuracy

Unit: nm

No. Initial After 100 cycles After 500 cycles Change
CWF-210915A25 0.45 0.51 0.53 0.08
CWF-210917B15 0.41 0.44 0.53 0.12
CWF-210925A24 0.52 0.55 0.60 0.08
CWF-210905B20 0.42 0.52 0.57 0.15
CWF-210907A21 0.28 0.35 0.44 0.16
CWF-210909A26 0.54 0.56 0.62 0.08
CWF-210915B23 0.35 0.45 0.51 0.17
CWF-210905A22 0.43 0.49 0.53 0.10
CWF-210905B28 0.41 0.43 0.53 0.12
CWF-210907B19 0.55 0.58 0.63 0.08
CWF-210915A22 0.35 0.42 0.46 0.11

Fig.6 Measurement results in temperature cycling test

CWDM filter temperature cycling test results - insertion loss of pass channel
CWDM filter temperature cycling test results - insertion loss of reflect channel
CWDM filter temperature cycling test results - - Central wavelength drift of pass channel

Table 7. CWDM filter cycling moisture resistance test results
a. Insertion Loss

Unit: dB

Item Insertion loss of pass channel Insertion loss of reflect channel
No. Before test After test Change Before test After test Change
CWF-210915B05 0.32 0.45 0.13 0.23 0.34 0.11
CWF-210916B10 0.47 0.55 0.08 0.32 0.35 0.03
CWF-210826A03 0.35 0.44 0.09 0.29 0.32 0.03
CWF-210918B09 0.33 0.41 0.08 0.22 0.33 0.11
CWF-210920A02 0.42 0.46 0.04 0.30 0.34 0.04
CWF-210904A10 0.45 0.49 0.04 0.31 0.36 0.05
CWF-210906A06 0.39 0.45 0.06 0.27 0.30 0.03
CWF-210908B15 0.42 0.48 0.06 0.32 0.39 0.07
CWF-210808B09 0.32 0.44 0.12 0.31 0.37 0.06
CWF-210911A14 0.40 0.46 0.06 0.29 0.34 0.05
CWF-210913B25 0.37 0.45 0.08 0.34 0.39 0.05

b. Isolation

Unit: dB

Item Isolation in pass channel
No. Before test After test Change
CWF-210915B05 33 31 2
CWF-210916B10 34 33 1
CWF-210918A03 32 31 1
CWF-210918B09 35 33 2
CWF-210920A02 32 31 1
CWF-210904A10 36 34 2
CWF-210906A06 35 33.5 1.5
CWF-210908B15 34 32 2
CWF-210808B09 33 32.5 0.5
CWF-210911A14 36 34 2
CWF-210913B25 34 32.5 1.5

c. Center Wavelength Accuracy

Unit: dB

Item Center Wavelength Drift（ λc-λ ITU ）
No. Before test After test Change
CWF-210915B05 0.32 0.37 0.05
CWF-210916B10 0.42 0.54 0.12
CWF-210918A03 0.39 0.52 0.13
CWF-210918B09 0.33 0.45 0.12
CWF-210920A02 0.24 0.32 0.08
CWF-210904A10 0.40 0.51 0.11
CWF-210906A06 0.30 0.43 0.13
CWF-210908B15 0.27 0.34 0.07
CWF-210808B09 0.50 0.58 0.08
CWF-210911A14 0.55 0.64 0.09
CWF-210913B25 0.40 0.54 0.14

Fig.7 Measurement results in cycling moisture resistance test

CWDM filter cycling moisture resistance test results - insertion loss of pass channel
CWDM filter cycling moisture resistance test results - isolation in pass channel
CWDM filter cycling moisture resistance test results - Central wavelength drift of pass channel

Table 8. CWDM filter water immersion test results
a. Insertion Loss

Unit: dB

Item Insertion loss of pass channel Insertion loss of reflect channel
No. Before test After test Change Before test After test Change
CWF-210815B10 0.34 0.45 0.11 0.24 0.30 0.06
CWF-210816B12 0.43 0.51 0.08 0.30 0.35 0.05
CWF-210818A05 0.32 0.43 0.11 0.27 0.32 0.05
CWF-210818A05 0.30 0.40 0.10 0.20 0.27 0.07
CWF-210820A02 0.41 0.47 0.06 0.31 0.34 0.03
CWF-210904A10 0.43 0.46 0.03 0.28 0.32 0.04
CWF-210906A06 0.37 0.43 0.06 0.25 0.28 0.03
CWF-210908B18 0.44 0.49 0.05 0.30 0.33 0.03
CWF-210808B20 0.33 0.41 0.08 0.31 0.35 0.04
CWF-210911A13 0.40 0.47 0.07 0.25 0.27 0.02
CWF-210913B22 0.32 0.34 0.02 0.32 0.34 0.02

b. Isolation

Unit: dB

Item Isolation in pass channel
No. Before test After test Change
CWF-210815B10 32 30 2
CWF-210816B12 34 33 1
CWF-210818A05 30 30.5 0.5
CWF-210818A05 31 30 1
CWF-210820A02 34 32.5 1.5
CWF-210904A10 36 34.5 1.5
CWF-210906A06 34 2 2
CWF-210908B18 35 34 1
CWF-210808B20 33 32 1
CWF-210911A13 33 33 0
CWF-210913B22 32 31 1

c. Center Wavelength Accuracy

Unit: dB

Item Center Wavelength Drift（ λc-λ ITU ）
No. Before test After test Change
CWF-210815B10 0.38 0.37 0.01
CWF-210816B12 0.45 0.54 0.09
CWF-210818A05 0.32 0.41 0.09
CWF-210818A05 0.39 0.45 0.06
CWF-210820A02 0.28 0.35 0.07
CWF-210904A10 0.45 0.52 0.07
CWF-210906A06 0.37 0.42 0.05
CWF-210908B18 0.39 0.49 0.1
CWF-210808B20 0.54 0.62 0.08
CWF-210911A13 0.56 0.64 0.08
CWF-210913B22 0.44 0.56 0.12

Fig.8 Measurement results in water immersion test

CWDM filter water immersion test results - insertion loss of pass channel
CWDM filter water immersion test results - Central wavelength drift of pass channel