Translator Disclaimer
28 July 1981 Heterojunction Phototransistors For Fiber-Optic Communications
Author Affiliations +
Proceedings Volume 0272, High Speed Photodetectors; (1981) https://doi.org/10.1117/12.965691
Event: 1981 Los Angeles Technical Symposium, 1980, Los Angeles, United States
Abstract
The theory of operation of the heterojunction phototransistor is reviewed and the limitations on gain and speed-of-response are examined in the context of fiber-optic systems requirements. The response of the base potential is shown to depend on the input optical power yielding a power dependent gain-bandwidth product, fT. Model calculations assuming an optimized device structure with peak response in the 1. μm - 1.55 μm spectral region are used to demonstrate the consequences of this dependence. The results indicate that the HPT can have sufficient gain and speed-of-response if a dc bias current is used. A comparison of the S/N of the HPT and an APD is presented to clarify system applicability.
© (1981) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
R. A. Milano, P. D. Dapkus, and G. E. Stillman "Heterojunction Phototransistors For Fiber-Optic Communications", Proc. SPIE 0272, High Speed Photodetectors, (28 July 1981); https://doi.org/10.1117/12.965691
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Analysis of temporal noise in CMOS APS
Proceedings of SPIE (April 27 1999)
A single-photon detector without cooler
Proceedings of SPIE (November 30 2012)
A New Bipolar Imaging Device (BASIS)
Proceedings of SPIE (October 29 1989)

Back to Top