
Manufactory Wholesale 1550 External Transmitter for CATV with LiNbO3 Modulator and ITU-T G.692 Compliance
Struggling with signal distortion in long-distance CATV transmissions? The 1550 External Transmitter leverages a high-linearity LiNbO3 external modulator to eliminate the Chirp Effect, ensuring superior signal clarity. Designed for CATV networks, this transmitter operates at wavelengths of 1540~1563nm, with adjustable ranges of ± 1.6nm and output power up to 1×7dBm. Its advanced noise reduction and ITU-T G.692 compliance make it ideal for broadcast, telecom, and enterprise applications.
• High-linearity LiNbO3 modulator | • Wavelength range: 1540~1563nm | • Output power: 1×5dBm (optional up to 1×7dBm) | • ITU-T G.692 compliant | • Ideal for CATV, telecom, and broadcast








ST1550 series Advanced type Externally Modulated CATV optical transmitter adopts low noise, narrow bandwidth, and continuous wave laser as its light source.
Summary
1550 External transmitter uses high linearity LiNbO3 external modulator to modulate signal. It eliminates the Chirp Effect of 1550nm direct modulation laser. Due to adopting owned system optimized control technology & using top grade key parts , the machine’s technique performance index achieves the standard of same advanced products in the world totally.
Optical Transmitter Display



Parameter for 1 output
Performance Index Supplement
Operating wa velength (nm) 1540~1563
Op tic fea tur e
Wavelength adjustable range (nm) ±1.6 (±200GHz)
Wavelength adjustable mode ±0.05nm stepping
Linewidth (MHz) ≤1 FWHM(Δλ)
Side mode suppression ratio (dB) ≥45 SMSR
Equivalent noise intensity (dB/Hz) ≤-160 RIN (20~1000 MHz)




Transmit chan nel
Lin k fea tur e
Communicatio n interface
Ge ner al f eat ure SNMP networ k managemen t interface


Power Consume (W) ≤50
Operating temp. (°C) 0~50
Storage temp. (°C) -40~85
Operating
Parameter for 2 output Performance
Wavelength ADJ. Range (nm) ±1.6 (±200GHz)
Wavelength ADJ. Mode ±0.05nm stepping
Side mode suppression ratio (dB) ≥45
Equivalent noise intensity (dB/Hz) ≤-160
Input level (dBmV) 18~28
Input impedance (Ω) 75
RF connector F-Female
SNMP NM interface RJ45

Single power w orks
Machine temp. control automat ically

Linewidth (MHz) Typ.=0.65
Output power (dBm) 2*3,2*5, 2*6, 2*7, 2*9, 2*10, 2*11 optional
Return loss (dB) ≥50
About Us
FMUSER is a company specializing in broadcasting and television transmission systems and integrating hotel IPTV systems. The company was established in 2009 and has served over 180 countries worldwide. More than 20,000 television stations, radio stations, and hotel clients from different.
Contact:Tomleequan Email:sales@fmuser.com whatsapp:+8613922702227

Contact:Tomleequan Email:sales@fmuser.com whatsapp: +8613922702227