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Proceedings Paper

A 1.65 µm region external cavity laser diode using an InP gain chip and a fibre Bragg grating
Author(s): F. Chen; J. Hodgkinson; S. Staines; S. James; R. Tatam
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Paper Abstract

We present the construction of an external cavity laser (ECL) diode using an InP semiconductor gain chip and a fibre Bragg grating (FBG), designed to have an emission wavelength that coincides with an absorption line of methane, to be used for spectroscopic gas sensing. The FBG was employed as a wavelength selective and feedback element, which will potentially provide the laser with wavelength tuning capability. Narrow linewidth lasing output of less than 5 MHz was achieved. To our knowledge, this is the first FBG based ECL in the 1.65 µm region.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215F (17 October 2012); doi: 10.1117/12.975302
Show Author Affiliations
F. Chen, Cranfield Univ. (United Kingdom)
J. Hodgkinson, Cranfield Univ. (United Kingdom)
S. Staines, Cranfield Univ. (United Kingdom)
S. James, Cranfield Univ. (United Kingdom)
R. Tatam, Cranfield Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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