A tunable all-optical microwave notch filter with a negative tap based on a semiconductor optical amplifier and a dispersive medium is demonstrated. A negative tap is realized through the cross gain modulation in the semiconductor optical amplifier. The free spectrum range of the notch filter can be
✦ LIBER ✦
Microwave devices based on transmission lines with positive/negative dispersion
✍ Scribed by I. B. Vendik; D. V. Kholodnyak; I. V. Kolmakova; E. V. Serebryakova; P. V. Kapitanova
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 978 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
Additional degrees of freedom in a design of miniature microwave devices can be provided by a combination of right‐handed and left‐handed transmission lines, which differ in dispersion characteristics. We present some examples of such devices: planar resonator and filter with suppressed spurious response, miniaturized balun, and broadband digital phase shifters. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 2632–2638, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21985
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