10Gteks 10G transceiver driver chips are from Maxim or Semtech and the laser chips are from ULM or Macom.
10G SR transceiver, Tx by 850-nm VCSEL, power is -6~-1dBm, Rx by PIN Sensitivity -11.1~-1dBm. Using MMF (OM3), up to 300-meter link lengths.
10G LR transceiver, Tx by 1310-nm DFB, power is -3~1dBm, Rx by PIN photo-detector -12.6~0.5dBm. Using SMF, up to 10km link lengths.
10G ER transceiver, Tx by 1550-nm Cooled EML laser, power is -1~4dBm, Rx by PIN photodiode -14.1~0.5dBm. Using SMF, up to 40km link lengths.
10G ZR transceiver, Tx by 1550-nm Cooled EML laser, power is 0~4dBm, Rx by APD photodiode -23~-8dBm. Using SMF, up to 80km link lengths.