Metrology and Test Center of Radio and Television
State Administration of Radio, Film and Television

EDFA Test Report

Test Serial No.: 10491007120878
Name: CATV Analog EDFA
Manufacturer: Shanghai May Telecom Co., Ltd.
Apply From: Shanghai May Telecom Co., Ltd. 

Sample Name CATV Analog EDFA
Sample Model EDFA-30
Manufacturer Shanghai May Telecom Co., Ltd.
Apply From Shanghai May Telecom Co., Ltd.
Address 1F, NO. 3378 Zhennan Road, Putuo District, 200000, Shanghai, China
Sample Number 2pcs
Telephone No. 021-54475318
Test Type Equipment admittance testing
Specifications GY/T184-2002 Specifications and methods of measurement on analog optical fiber amplifiers used in CATV system
Test Date July 28th, 2010
Circumstance Temperature: 25℃; Humidity: 50%; Voltage: 220V
Test Uncertainty /
Test Conclusion The tested parameters of EDFA-30 CATV Analog EDFA manufactured by Shanghai May Telecom Co., Ltd. comply to the technical requirements of GY/T184-2002 Specifications and methods of measurement on analog optical fiber amplifiers used in CATV system.
Certificate Date: August 2nd, 2010

Test Result

First, CATV Analog EDFA

No. Test Parameters Unit Specifications Test Results Conclusions
1# 2#
1 Input Power dBm -3~+10 complied complied Pass
2 Input Wavelength nm 1535~1565 complied complied Pass
3 Output Power dBm 10~24 22.3 22.0 Pass
4 Noise Coefficient dB ≤5.0 (input power of CATV anolog EDFA is 0dBm) 4.35 4.27 Pass
5 Return Loss dB ≥45 50.5 52.7 Pass
6 Pump Power Leakage dBm ≤-30 -37.0 -38.2 Pass
7 Optical Connector -- FC/APC, SC/APC SC/APC SC/APC Pass

Second, 1550nm link
Link consists of CATV 1550nm AM Laser Transmitter—CATV analog EDFA—Variable Optical Attenuator—25km fiber—CATV AM optical receiver

No. Test Parameters Unit Specifications Test Channels Test Results Conclusions
1# 2#
1 C/N dB ≥50 DS4 51.2 51.3 Pass
Z16 50.5 50.6
Z36 52.1 51.9
DS22 50.2 50.3
2 C/CTB dB ≥63 DS4 63.3 63.2 Pass
Z16 63.9 63.7
Z36 63.7 63.7
DS22 65.4 65.2
3 C/CSO dB ≥63 DS4 64.8 64.5 Pass
Z16 63.5 63.2
Z36 68.5 67.5
DS22 67.3 67.0

Test Instruments List

No. Instruments Name
1 Spectrum analyzer
2 Multiple signal sources
3 Network analyzer
4 Optical power meter
5 Optical attenuator
6 Optical spectrum instrument
7 Tunable Filter
8 High power variable laser source
9 OTDR
EDFA Sample photograph
Sample photograph