Linewidth characteristics of fiber-extended-cavity distributed-feedback lasers

A 1.55-μm wavelength InGaAsP distributed feedback (DFB) laser with an antireflection coated facet has been coupled to a single-mode fiber with a reflective end to construct a compact narrow-linewidth source. The linewidth of the DFB laser is reduced by a factor of 1000 to 70 kHz at 1 mW output with...

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Bibliographic Details
Published in:Applied physics letters 1986-04, Vol.48 (16), p.1039-1041
Main Authors: LIOU, K.-Y, JHEE, Y. K, EISENSTEIN, G, TUCKER, R. S, KU, R. T, SHEN, T. M, CHAKRABARTI, U. K, ANTHONY, P. J
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Lasers
Optics
Physics
Semiconductor lasers
laser diodes
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Summary:A 1.55-μm wavelength InGaAsP distributed feedback (DFB) laser with an antireflection coated facet has been coupled to a single-mode fiber with a reflective end to construct a compact narrow-linewidth source. The linewidth of the DFB laser is reduced by a factor of 1000 to 70 kHz at 1 mW output with a 5.5-cm fiber length. The fiber mirror to DFB laser coupling parameters required for narrow-linewidth operation are presented.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.96641