Guangtai Top-Class 1550nm Externally Modulated Optical Transmitter Ht8500t

Product DescriptionGT is the well-known manufacture in analog externally modulated optic transmitter around the world. HT8500T is a series of 1550nm externally modulated optic transmitter achieving the highest standards of today. The whole-unit's optical source adopts narrow line width (Typ.=0.35MHz), low noise and continuous wave DFB laser, which is propitious to reduce dispersion effect. Adopting ITU standard wavelength, users can adjust and set the wavelength on the front panel within the range of ±200GHz (±1.6nm) as ±0.05nm stepping. HT8500T EM optic transmitter is applicable for the network upgrading and expansion of WDM system. The whole unit signal modulation adopts CATV special LiNbO3 external modulator of American JDS-U company and Huatai optimized control technology with independent intellectual property , so HT8500T EM optic transmitter can reach high index of back to back CNR ≥ 53.5dB, CTB ≤ -65dB, CSO ≤ -65dB, SBS: 13~19dBm continuous adjustable. The whole unit is equipped with perfect RS232 communication interface, SNMP network management, 1+1 back-up power supply , hot-plug function available, chassis temperature auto-control. All the optical port of EM optic transmitter can be installed in the front panel (The back panel is also available if needed).HT8500T, advanced type externally modulated optic transmitter with it's high index, high reliability and excellent cost performance, is applicable for the over-long trunk of large and middle CATV station head-end, WDM system and CFG dispersion compensation system.Product Features1. Externally modulated technology for HT8500T optic transmitter, no laser chirp, low dispersion distortion, high extinction ratio, with excellent characteristic within 40~862MHz, used in the over-long trunk of large and medium sized cable television head-end.2. 1+1 powers supply back , up hot-plug function available.3. Narrow line width (Typ=0.35 MHz), low noise, and DFB continuous wave laser, be propitious to reduce dispersion effect.4. The operating bandwidth is up to 47~1000MHz.5. CNR ≥ 53.5dB and excellent CTB, CSO index.6. SBS: 13~19dBm, continuous adjustable.7. ITU standard wavelength adjustable , users can adjust and set the wavelength on the front panel with ±0.05nm stepping in the range of ±200GHz (±1.6nm), used in the network upgrading and expansion of WDM system.8. AGC/MGC mode is optional at spot; OMI can be optimized at spot.9. Perfect RS232 communicate interface.10. Advanced SNMP network management function.11. Casing temperature auto-control.Main Application1. Used in the over-long trunk and distribution net in the large and middle cable television central station head-end.      Analogue digital hybrid transmission > 200Km (with dispersion compensation).      Pure digital transmission (Without dispersion compensation) > 400Km,                                                    (With dispersion compensation) >700Km.2. VAS in DWDM fiber CATV system3. CFG dispersion compensates system.Technical Index  PerformanceIndexSupplementOpticalfeatureOperating wavelength(nm)ITU-TG.692 standard wavelength Wavelength ADJ. range(nm)±1.6  ±200GHz Wavelength ADJ. mode ±0.05nm stepping Wavelength stability(Pm/ºC)-1~0Tc=20~70ºCLinewidth(MHz)Typ.=0.35FWHM( △λ ) ( -3dB fullwidth )Side mode suppression ratio(dB)≥45SMSREquivalent noise intensity(dB/Hz)≤-160RIN ( 20~1000MHz )Number of output port 2 Output power of each port(dBm)7.0, 8.5, 10,11, 12, 132×7, 2×9, 2×10, 2×11, 2×12, 2×13Return loss(dB)≥50 Optical fiber connector SC / APCOptional LC / APC,FC / APCRF featureWork bandwidth(MHz)47-862Optional 47~ 1000MHzInput level(dBmV)18~28AGCFlatness(dB)≤±0.7547~862MHz≤±1.5862~1000MHz ( Optional )Return loss(dB)>16 Input impedance(Ω)75 RF port F-Female Link featureTransmit channel PAL-D / 60CHPAL-D / 99CH CNR1(dB)≥53.5≥52Back to backCNR2(dB)≥51.5≥5065Km optical fiber, 0dBm receiveCTB(dB)≤-65≤-65 CSO(dB)≤-65≤-65 SBS restrain(dBm)13~19AdjustableGeneral featureSNMP network management interface RJ45 Communication interface RS232 Power supply(VAC)90~26550 / 60 Hz(VDC)-4830~72Power Consume(W)≤50Single power worksWork temp.(ºC)-5~65Machine temp. control automaticallyStorage temp.(ºC)-40~85 Relative humidity(%)5~95 Size (W)x(D)x(H) ( " )19×15.2×1.75 Flow ChartShipping Mode       FAQ1. What are the payment terms of payment?Usually, we accept T/T, PayPal, Western Union, and Alibaba Trade Assurance. You can select the terms of payment which is more convenient for you.2. What about the lead time?Usually, if there's stock, we ship the goods within 5-7 working days after the deposit is confirmed. If it is out of stock, the lead time depends.3. How about the shipping?When the package is small, we will deliver the goods via international Express like FedEx , DHL,TNT and UPS and so on. Door to door delivery service will be provided; while the goods have high weight and volume, we suggest using air or sea shipment.4. Can you do OEM for us?Yes. if there is a certain order quantity, we can do OEM including