Blakely Sokoloff Taylor & Zafman
Digital automatic gain control apparatus and method in burst mode optical receiver
A transimpedance amplifier for a burst mode optical communication converts a burst current signal into differential output voltage signals. Using a multi-level digital AGC mechanism, the transimpedance amplifier is rapidly adapted to a burst signal whose amplitude varies in a wide range. By using an adaptive level detection method, a multi-level digital AGC can be implemented without using ADC. In addition, because the transimpedance amplifier uses a selective reset generation scheme that performs a reset operation for itself after a high power burst, a burst mode operation can be performed without external reset signals. Accordingly, the transimpedance amplifier can be integrated with an optical detector within a TO-can. Furthermore, the transimpedance amplifier can have the burst mode capability and the best sensitivity.
Research and Industrial Cooperation Group Electronics and Telecommunications Research Institute
H H H
H03G H04B H04B
inventional inventional inventional
Bong-Tae Ho-Yong Quan Yool Sang-Gug Hyun-Kyun
Kim Kang Le Kwon Lee Choi