Jae-Myung Baek

AC-coupled burst-mode OLT SFP transceiver for gigabit ethernet PON systems

This letter presents a burst-mode optical line terminal transceiver for a gigabit ethernet passive optical network system. The transceiver package is compliant with small form-factor pluggable multisource agreement. The burst-mode receiver employs an ac-coupling between commercial transimpedance amplifier and limiting amplifier. The burst-mode receiver achieves sensitivity of -24.4 dBm at bit-error ratio 10/sup -12/ with pseudorandom bit sequence 2/sup 7/-1 data, overload of -1.5 dBm, and system dynamic range of 22.9 dB for preamble of 512 bits and guard time of 32 bits. Burst-mode penalty of 1.6 dB is also observed by experiment.

High-power wide temperature range (-40°C ~100°C) operation of 1300-nm InGaAsP DFB lasers with asymmetric MQWs

We demonstrate 1.25 Gbps 1300 nm InGaAsP/InP DFB lasers employing asymmetric MQWs structures operable over a wide temperature range of -40°C to 100°C, which has an optical power of 10 mW and a side mode suppression ratio (SMSR)and a Fabry-Perot suppression ratio (FPSR) of >30dB.