... 5. CE FWT-1550EH series, 1550nm Externally Modulated Optical Transmitter ,47~(860)1000MHz, CNR≥52dB, SBS: 13~ ... Externally Modulated Optical Transmitter.2. Narrow line width(Typ.=0.65MHz), low noise and continuous wave DFB ... CATV special LiNbO3 external modulator of American company and FULLWELL optimized control technology.4. High index of ... outputs, ≥12dBm) oem 1550nm optical digital tv transmitter