1550nm Outdoor Laser Optical Transmitters
1550nm Outdoor Laser Optical Transmitters is applied in the multi-channel transmission, the laser’s chirp effect will react with the link dispersion of the fiber. There will be distortion on the receiver. If working with the EDFA, there will be serious CSO deterioration. The distortion and deterioration will increase with the longer distance and more channels.

1550nm internal modulation CATV optic transmitter, has the chirp and dispersion compensation inside, and improves the system index greatly. It can be used in the town where the fund is shortage and the distance is less than 10Km as a transition solution.
Features
Low chirp effect, high linearity DFB laser
Dual Module therefore drive, chirp compensation Laser OMI AGC/MGC
Intuitional modulation status display
Dual power supply inside backup. Full-automatically swicth Full-automatically control of casing temperature
Parameters of 1550nm Outdoor Laser Optical Transmitter
Performance | Index | Supplement | ||
Optic feature | Laser wavelength | nm | 1550±10 | |
Linearity width | MHz | ≤1 | △λ | |
Equivalent noise |
dB/Hz |
≤-160 |
RIN 20~1000MHz | |
Side mode suppression ratio |
dB |
≥35 |
SMSR | |
Extinction ratio | dB | ≥20 | Xp | |
Output power | dBm | 2×7 | 1×7、1×10、2×6、2×7 | |
SBS restrain | dBm | ≥17 | ||
Return loss | dB | ≥60 | ||
Optic fiber connector | FC/APC | SC/APC or E-2000 | ||
RF feature | Work bandwidth | MHz | 45-862 | |
Input level | dBmV | 18~28 | AGC | |
Flatness | dB | ≤±0.75 | 45~862MHz | |
Return loss | dB | >16 | 45~750MHz | |
Input impedance | Ω | 75 | ||
Link feature | Transmit channel | PAL-D/60ch | ||
CNR | dB | ≥51 | 10Km optic fiber,0dBm receive | |
CTB | dB | ≤-65 | ||
CSO | dB | ≤-60 | ||
General feature | Network interface port | RJ45,R232 | Support I.E. & SNMP | |
Power supply | V | 90~265 city power | -48VDC optional | |
Power Consume | W | ≤50 | Single power works | |
Work temp. |
℃ |
-5~65 | Machine temp controlled automatically | |
Storage temp. | ℃ | -40~85 | ||
| Work relative temp. | % | 5~95 | ||


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