A tunable single-mode source is obtained using a coaxially packaged Fabry-Perot laser diode with a built-in external cavity. The facet of the coupling fiber becomes an optical reflector and forms an external cavity with a laser facet. The single-mode oscillation condition is controlled and stabilize
Single mode operation of a Fabry–Perot laser locked by a tunable laser
✍ Scribed by Ning Hua Zhu; Wei Han; Wei Li; Wei Chen; Ji Min Wen; Yu Liu; Liang Xie
- Publisher
- John Wiley and Sons
- Year
- 2008
- Tongue
- English
- Weight
- 714 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
In this article, the single mode operation of a Fabry‐Perot laser (FP‐LD) subject to the optical injection from a tunable laser is investigated. The maximum side mode suppression ratio (SMSR) is 53 dB, and the locked wavelength range is about 46 nm, which can cover 58 International Telecommunication Union (ITU) wavelengths with 100 GHz spacing or 115 ITU wavelengths with 50 GHz spacing for wavelength division multiplexing (WDM) system. In the wavelength range from 1535 to 1569 nm, the SMSR is over 46 dB, and the frequency response of the injection‐locked FP‐LD can be improved with the proper wavelength detuning. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1888–1892, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23538
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