Remark:

1. Total length of the transmission fiber is 816km, adopts Corning SMF-28 fiber, Loss≈0.2dB/Km, 11 sections.

2. Dispersion compensation volume is 720km, adopts Huatai HDCM-FXX DCM, 11 pieces.

3. Satellite L-band optical transmitter, Use Huatai HDBS-3108TG-A1551, with cooling DFB laser, internal Modulated, operation wavelength, 1551.72nm, (ITU), optical output power: 8.5dBm. Optical receiver: Use Huatai HDBS-3213RX (receiving sensibility: -13dBm)

4. EDFA: Use Huatai HA5116, 11 pieces, optical output power: 16dBm, Noise Figure: 4.2dB (Pin=0dBm), optical output power >-8.5dBm (input power is related with the Insertion Loss of the DCM-F).

5. Noise Quality:

① Original signal: Signal: 78%, Quality: 53% (satellite Antenna→satellite receiver→TX).

② Transmit 816km, 11 sections, Singal: 78%, Quality: 45%.

③ Adjust the volume of dispersion compensation, can improve the quality of signal.

6. This test is provided by Hangzhou Huatai Optic Tech CO., LTD.