Experimental results for a CW-mode optically controlled microwave switch on a silicon-based coplanar waveguide
✍ Scribed by Sangil Lee; Yasuo Kuga; Ruth Ann Mullen
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 304 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
A CW‐mode optically controlled microwave switch (CW‐mode OMS) on a coplanar waveguide (CPW) for both a standard and a new design with carrier‐confinement structure is investigated. We experimentally show that it may not be possible to obtain less than 7 dB of insertion loss with the standard OMS, and the carrier diffusion limits the improvement of insertion loss in CW‐mode operation. We present a new design with a carrier‐confinement structure with silicon (Si) substrate etching to confine the optically generated free‐carriers. Less than 2 dB of insertion loss is obtained with the new carrier‐confined OMS. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 257–262, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10737