Jin-Wook Kwon

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.

Low-cost and high-performance APD burst-mode receiver employing commercial TIA for 1.25-gb/s EPON

A 1.25-Gb/s burst-mode receiver for the application of 32 splits and 20-km transmission in Ethernet-based passive optical network was developed using a general planar type avalanche breakdown photodiode and a low-cost continuous-mode transimpedance amplifier (TIA). The largest loud/soft ratio (27.3 dB) and high sensitivity (-33.3 dBm) were achieved in 896-ns guard band. The minimum automatic gain control (AGC) time of the TIA was obtained without using a high value external AGC capacitor that is needed for the stable continuous operation. The guard time could be minimized while maintaining the burst performances due to the fast laser on-off time of the optical network units.

P‐188: Field Sequential Type 3D Pico‐Projector Phone Based on 1GHz Mobile Application Processor and nHD DMD Chipset

In this paper, we present the first 3D pico-projector phone platform which adopted a field sequential type nHD DLP-based projector module and the mobile application processor S5PC111. With 1.5ms of 3D glass blank time and maximally 12 lumen picoprojector engine, we obtained about 30% of optical efficiency at 1W LED power consumption.