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High efficiency pin waveguide photodetectors

ABID KARIM1,*

Affiliation

  1. Iqra University, Defence View, Shaheed-e-Millat Road (Ext.), Karachi, Pakistan

Abstract

A waveguide photodetector (WGPD) is very attractive device for future optical communication systems and optoelectronic integrated circuits (OEIC) because the wide bandwidth operation at higher quantum efficiencies can be obtained. Also, these devices have advantage of packaging technology, since waveguide structure, which is similar to laser structure, is suitable for planar OEIC. Furthermore, it can be operated under zero-bias and biased conditions. In this paper, the performance of zero-bias and biased pin waveguide photodetector is compared with respect to internal quantum efficiency and internal quantum efficiencies as high as 105% are achieved.

Keywords

Waveguide photodetector, Internal quantum efficiency, Photodetection, Pn-junction photodiodes.

Citation

ABID KARIM, High efficiency pin waveguide photodetectors, Optoelectronics and Advanced Materials - Rapid Communications, 3, 11, November 2009, pp.1151-1154 (2009).

Submitted at: July 3, 2009

Accepted at: Oct. 29, 2009