1550nm Direct modulation optical transmitter

Direct modulation optical transmitter with SNMP management, indoor, 1550nm, 2 output port, 2-8mW output optical power, 47~862MHz, SBS, AGC, imperial F type female port, FC/APC or SC/APC connector, RJ45 and RS232 port, VFD, 19" 1U. (8mW-2x6 and 10mW-2x10 are optional).
Features                                                          
◇ Low chirp, high linearity DFB laser, chirp compensation
◇ Dual module RF driver , high efficient laser pre-distortion adjustment
◇ Full-automatic OMI control, AGC & MGC
◇ Intuitionistic modulation status display
◇ Built-in dual back-up power supply, switch automatically
◇ Casing temperature auto-control, ensure the long life of the laser
Description
Direct modulation will lead to high laser chirp (Laser's bias current is modulated by signal and the optical spectrum shifts and shakes). Laser chip will interact with dispersion effect caused by standard single mode fiber (SMF-28), which will generate serious distortion in the place of 1550nm. This kind of distortion will become more serious with the increase of transmission distance, bandwidth and channel number.
At present, international high performance 1550nm direct modulation has no obvious performance inferior while transmitting an analog and digital multiplexing full channel signal with transmission distance≤15Km or transmitting digital load with transmission distance≤40Km.

YOUXIN OT1550D is a 1550nm direct modulation optical transmitter with high index and AGC function. It adopts high linearity and low chirp DFB laser, built-in pre-distortion compensation and AGC, APC, ATC closed loop control, which improves the system index obviously. It can be used in FTTx (≤10Km) of second-grade service area (sub-headend), also can be used in WDM narrow-band multiplexing and IP/QAM.

Specification Optical feature Optical wavelength 1548~1563nm 1530~1563nm CATV wavelength ITU standard Linewidth 1MHz FWHM(△λ) Side mode suppression ratio 45dB SMSR Extinction ratio 20dB XP Equivalent noise intensity -160dB/Hz RIN (20~1000MHz) Output power 6dBm 3, 10 options Return loss 55dB Optical fiber connector FC/APC or SC/APC RF feature Work bandwidth 45~862MHz Input level 202dBmV MGC Fatness ±0.75dB 45~862MHz Rerun loss ＞16dB Input impedance 75ohm RF/INPUT RF test 0±1dB Link feature Transmit channel PAL-D/60CH NTSC/80CH CNR 50dB -1dBm receive CTB -63dB CSO -57dB SBS restrain ≥17dBm General feature Network management interface RJ45, RS232 Support IE &SNMP Power supply 90~265V -48V optional Power consume ≤50W Single power works Work temperature ℃ Machine temperature Control automatically Storage temperature -40~85℃ Relative humidity 5~95% Dimension 19inch,1U

Applications


◇ HFC network


◇ PON network