IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Effect of coupling ratio on performance of self-excited Brillouin/erbium fiber laser
Sulaiman Wadi HarunCheng Xiau SanHarith Ahmad
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JOURNALS FREE ACCESS

2004 Volume 1 Issue 15 Pages 460-464

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Abstract

The operation of the self-excited Brillouin/erbium fiber laser (BEFL) is experimentally demonstrated. It uses a forward pumped erbium-doped fiber (EDF) as a gain medium to generate a Brillouin-pump and amplify the Stokes frequency signals generated in a single-mode fiber (SMF). The operating wavelength varies with changes of coupling ratio of the looping arm. The optimum BEFL operation is obtained with a center wavelength at 1567.5nm by looping back 20% of BEFL output into the other end of the SMF. A stable and strong BEFL comb of up to 16 lines with approximately 11 GHz line spacing are produced at the 980-nm pump power of 118mW. The self-excited BEFL has the potential to be used in the future dense wavelength division multiplexing communication system.

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© 2004 by The Institute of Electronics, Information and Communication Engineers
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