New AC-Coupled Burst-Mode Optical Receiver Using Transient-Phenomena Cancellation Techniques for 10 Gbit/s-Class High-Speed TDM-PON Systems

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Abstract
An ac-coupled burst-mode receiver (B-Rx) for 10-Gbit/s class PON systems that uses a novel baseline-wander common-mode-rejection (BLW-CMR) technique and an inverted distortion technique is proposed and demonstrated. The realization of 10-Gbit/s class PON systems requires the development of a B-Rx with high sensitivity, a wide dynamic range, and a fast response for handling the burst-mode data. The BLW-CMR technique can cancel out the transient responses of capacitors at an ac-coupled interface, and the inverted distortion technique can reduce the duty-cycle distortion caused by the reference voltage wandering at long consecutive identical digits (CIDs) with a fast average detector. A B-Rx using these techniques can realize high receiver sensitivity, a wide dynamic range, and an instantaneous response with a high tolerance to CIDs. We achieved a settling time of less than 150 ns, a sensitivity of -29.8 dBm, and a dynamic range of 24.8 dB at a bit error rate of 10- 3 with a 231-1 pseudo random bit sequence for a burst-mode optical input at 10.3125 Gbit/s.

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