gigaopto Logo


Gigaopto provides PON access networks with a series of SFP-packing PON OLT optical transceiver modules that support GEPON data rates at 1.25Gbps downstream and 1.25Gbps upstream. It is fully compliant with IEEE 802.3ah-2004. The transmitter section uses a 1490nm DFB laser and an integrated laser driver which is designed to be Class 1 eye safety per IEC825 and CDRH standards. The laser driver includes APC and temperature compensation functions, which are used for keeping the launch optical power and extinction ratio constant over temperature and aging. The receiver has a hermetically packaged APD-TIA (trans-impedance amplifier) pre-amplifier and a limiting amplifier with LVPECL compatible differential outputs.The Receiver Loss of Signal (Rx_LOS), Transmit Disable (Tx_DIS), Transmit Fault (Tx_FAULT) and the monitor and control functions are LVTTL compatible. The digital diagnostic monitoring function is fully compliant with SFP MSA.
Ordering Information
Part No.PackageProductData Rate(Gbps)Wavelength(nm)ClassReachConnectorTemp.(°C)
GTS-SET11-20DCBSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX2020kmSC/UPC0~70
GTS-SET11-20DIBSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX2020kmSC/UPC-40~85
GTS-SET11-20DCCSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX3020kmSC/UPC0~70
GTS-SET11-20DICSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX3020kmSC/UPC-40~85
GTS-SET11-20DCDSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX4020kmSC/UPC0~70
GTS-SET11-20DIDSFPOLTTX1.25 / RX1.25TX1490 / RX1310PX4020kmSC/UPC-40~85


  • SFP MSA package with SC receptacle connector
  • 1.25Gbps 1490nm DFB Continuous Mode TX
  • 1.25Gbps 1310nm APD Burst Mode RX
  • Compliant With IEEE 802.3ah-2004
  • +3.3V single  Power Supply
  • Digital Diagnostic Monitoring function implemented
  • Transmission Distance up to 20km on SMF
  • Low power consumption
  • Operating Case Temperature: 0~+70C or -40~+85C
  • Very low EMI and excellent ESD protection
  • Class 1 FDA and IEC60825-1 Laser Safety
  • RoHS Compliant


  • Gigabit Ethernet Passive Optical Networks (GEPON)
  • FTTx

Related products