光通信中的主流光电探测器研究

Study on Mainstream Photodetector in Optical Communication

对光通信系统解复用接收部分中的关键器件——主流光电探测器进行综合比较、优缺点分析与展望.分别对PIN光电探测器,普通雪崩二极管,超晶格雪崩二极管,波导型光电探测器,振腔增强型光电探测器,金属-半导体-金属光电探测器的原理和特点做了简要概括,并做系统比较,最后对光电探测器发展前景进行展望.

The key devices of in optical communication system, such as mainstream photodetector are compared synthetically and forecasted, and the advantages and disadvantages are analyzed. The brief overview of the principle and characteristics of the devices such as PIN photodiode, APD （general avalanche photodiodes）, SL-APD （superlattice avalanche photodiodes）, WGPD （waveguide photodetector）, RCE-PD （resonant-cavity-enhanced photodiode）, MSM （metal-semiconductor-metal） photodetectorand, are compared. The future development prospect of photodetectors is discussed finally.