Gain and noise performances of an L-band EDFA utilizing a ring laser cavity with fiber Bragg grating
✍ Scribed by S. W. Harun; N. Tamchek; H. Ahmad
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 66 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
The performances of gain and noise figure of an L‐band EDFA utilizing a ring laser cavity is demonstrated. It uses a fiber Bragg grating (FBG), arranged to propagate in opposition to the amplifier signal by a pair of circulators, to provide laser feedback. A flat‐gain spectrum with less than 1.1‐dB variation between 1568 nm and 1604 nm was observed with the laser wavelength at 1560 nm. A gain‐clamping effect was also observed with this configuration, which provided a constant gain for all tested input signal powers from −40 dBm to 0 dBm. © 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 1–2, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10652