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Proceedings Paper

Long cavity length composite cavity fibre laser with single longitudinal mode and narrow linewidth
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Paper Abstract

The composite cavity fibre laser (CCFL) is demonstrated for its capability in maintaining single longitudinal mode operation, whilst having longer cavity length than typical distributed Bragg reflector or distributed feedback fibre lasers, and hence also higher output power. These two attributes should enable the CCFL to be useful in sensing applications. A long cavity length CCFL can be fabricated simply by writing three spectrally matched Bragg gratings directly into a continuous length of doped fibre. This is analogous to the use of feedback cavities in semiconductor laser designs to maintain single longitudinal mode. Results from in-house fabrications show that long cavity length CCFLs can be fabricated to have single longitudinal mode and narrow linewidth characteristics similar to that of a distributed feedback fibre laser, and also significantly higher output power.

Paper Details

Date Published: 26 November 2007
PDF: 9 pages
Proc. SPIE 6830, Advanced Sensor Systems and Applications III, 68301V (26 November 2007);
Show Author Affiliations
Ian Leung, Univ. of New South Wales (Australia)
Paul A. Childs, Univ. of New South Wales (Australia)
Gang-Ding Peng, Univ. of New South Wales (Australia)

Published in SPIE Proceedings Vol. 6830:
Advanced Sensor Systems and Applications III
Yun-Jiang Rao; Yanbiao Liao; Gang-Ding Peng, Editor(s)

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