Frequency response of fiber ring resonator and its application in DFB laser wavelength variation measurement
✍ Scribed by Wei Chen; Ning Hua Zhu; Min Ren; Liang Xie
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 572 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
Frequency response of a fiber ring resonator (FRR) composed of an ordinary optical coupler and a segment of optical fiber is theoretically and experimentally investigated. The frequency response equation based on small‐signal modulation is derived and studied in detail. It is shown that the shape of the frequency response curve is very sensitive to the wavelength; as a result, the FRR can be applied to measure the wavelength of a lightwave source with high resolution. With this method, we demonstrate the measurement of tiny changes of wavelength of a DFB laser. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 2444–2448, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24608