Single-mode operation of a surface grating distributed feedback GaAs-AlGaAs laser with variable-width waveguide

Abe, H., Ayling, S.G., Marsh, J.H. , De La Rue, R.M. and Roberts, J.S. (1995) Single-mode operation of a surface grating distributed feedback GaAs-AlGaAs laser with variable-width waveguide. IEEE Photonics Technology Letters, 7(5), pp. 452-454. (doi:10.1109/68.384507)

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Abstract

Single-mode distributed feedback laser operation can be achieved by introducing an appropriate phase jump within the feedback grating, causing lasing to occur within the stop-band. One possible approach involves variation of the waveguide stripe width in an index-guided structure, in conjunction with a grating of uniform periodicity. If the phase change is allowed to accumulate over a sufficient length of the width perturbed stripe waveguide, a /spl lambda//4 shift can be realized. We report the first laser of this type using a surface grating structure with only postgrowth processing.

Item Type:Articles
Additional Information:This work was supported in part by the Engineering and Physical Sciences Research Council of the United Kingdom, under Contract GR/H 82471.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Marsh, Professor John and De La Rue, Professor Richard
Authors: Abe, H., Ayling, S.G., Marsh, J.H., De La Rue, R.M., and Roberts, J.S.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Photonics Technology Letters
Publisher:IEEE
ISSN:1041-1135
ISSN (Online):1941-0174

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