Study of optical heterodyne mixing characteristics in an A1InAs/GaInAs transferred-substrate double heterojunction bipolar transistor
✍ Scribed by N. M. Kwak; H. J. Kim; H. T. Kim; W. J. Choi; K. Cho
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 272 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
The beat‐frequency dependency of the optical heterodyne mixing characteristics of a transferred‐substrate A1InAs/GaInAs double heterojunction bipolar transistor (DHBT) have been investigated from 1 to 25 GHz in 1‐GHz steps at a center wavelength of 1319 nm. The experimental results show a high‐speed but low‐responsivity response followed by a low‐speed but high‐responsivity response. The 3‐dB bandwidth of the low‐speed response is 3 GHz. Various ways of increasing the high‐frequency responsivity are discussed. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 74–77, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20213