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Gain and noise performances of an L‐band EDFA utilizing a ring laser cavity with fiber Bragg grating
Author(s) -
Harun S. W.,
Tamchek N.,
Ahmad H.
Publication year - 2002
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10652
Subject(s) - fiber bragg grating , circulator , optics , optical amplifier , ring laser , materials science , laser , distributed feedback laser , fiber laser , noise figure , optoelectronics , amplifier , physics , cmos
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
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