Theory of burst-mode receiver and its applications in optical multiaccess networks

Abstract

Abstract-In this paper, a unified theory for the newly developed optical burst-mode receiver is presented. Based on this theory, an analysis of the performance of the receiver is given both theoretically and experimentally. The theoretical model agrees well with the experimental results. This theory can quantitatively explain the bit error rate (BER) performance of burst-mode receivers. Several potential applications of burst-mode receivers are also illustrated, including applications in supervisory system for erbium-doped fiber amplifier (EDFA) trans-oceanic optical links and various high-speed all-optical multiaccess packet networks.

Burst-mode clock and data recovery in optical multiaccess networks using broad-band PLLs

“…Specifically, optical receivers must be adapted to deal with burst-mode traffic, where data bursts originate from various sources and travel different distances due to the point-to-multipoint nature of the network. The amplitude and phase of successive packets may therefore vary anywhere between 0-20 dB and to rad, respectively [4]. Receivers with the following characteristics are therefore necessary: wide dynamic range, fast automatic threshold control (ATC), and fast phase acquisition, where ATC and phase acquisition must occur within nanoseconds to support short packet lengths at gigabit rates.…”

Projeto e teste de um receptor para transmissões em modo de rajada de redes ópticas passivas de nova geração

“…gain control) e a compensação automática de deslocamento (AOCautomatic offset compensation) O controle automático de ganho é um dispositivo capaz de diminuir o ganho geral do receptor à medida que o sinal de entrada aumenta em potência, ou seja, o ganho do TIA é ajustado para cada rajada recebida (rajadas com maiores potências apresentarão um menor ganho linear, enquanto rajadas com menores potências serão amplificadas com maior ganho linear). Já a compensação automática de deslocamento, também presente no amplificador de transimpedância, faz com que o nível do limiar de decisão presente no LIA fique com um valor fixo, com a compensação de amplitude feita por meio do controle de tensão DC presente na saída do TIA[32].…”