 Product description Huatai HES-55S series 1550nm wide band micro-wave external modulation optical transmitter, adopts external modulation technology, without laser chirp, extremely low dispersion distortion, large extinction ratio. It fits for high ratio, high broadband, long distance telecommunication network application.
HES-55S working bandwidth 950~5450MHz. It can transmit multi(stacker) 4-Band SAT-IF signal in one fiber to realize two polarized 4-Band SAT-IF signal in one satellite, or 4-Band SAT-IF signal in different satellites to convert all of them into one fiber. Through FTTH, users use ordinary satellite receiver and STB to receive satellite video carrier the integrate TV programs. It can supply high quality of satellite TV service up to 3000 SDTV or 600 HDTV channel.
HES-55S can compatible with any FTTx PON technology to realize satellite TV, cable TV, internet integration of three networks. It can choose ITU-T standard wavelength to fit for DWDM system application.
HES-55S adopts low noise, narrow band, continuous wave laser as optical source, it adopts high bandwidth LiNbo3 external modulator as signal to eliminate 1550 nmlaser to control the chirp. Excellent laser APC, ATC control and external modulation bias control，perfect SNMP, RS232 interface, 1+1 power supply backup. High performance, high reliability and excellent performance price ratio. It is the best choice for subscribers.
 Product feature  External modulation without laser chirp, extremely low dispersion distortion, large extinction ratio.
950~5500MHz RF operating bandwidth.
It adopts frequency-division multiplexing (FDM), and can simultaneously transmit 4-way SAT-IF composite signal 4×(950~2150MHz) through one fiber.
Reach up to 3000 SDTV or 600 HDTV channels to use in subscriber end.
Can choose ITU-T standard wavelength, adopt DWDM system application.
Can use the EDFA, YEDFA, is compatible with any FTTx PON.
Broadband LiNbO3 external modulation, narrow-linewidth CW DFB laser.
Laser APC, ATC, AWC
All electronic adjustable.
Level MGCcontrol .
Telecommunication-grade security and reliability and network management
SNMP support remote management and control
1+1 power supply back up,up hot-plug function available
Excellent P2P ratio.
Main application Satellite-TV long-distance transmission
Satellite-TV FTTH
CATV, satellite-TV, Internet, Triple-play
Other microwave wideband application.
Related products Applicable receiver: HRS-55S
Product Series Comparison Table HES-55S electric theory diagram
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