Ridge waveguide laser integrated with spot-size converter in a single step epitaxial for high coupling efficiency to single-mode fibres

Hou, L.-P. , Wang, W. and Zhu, H.-L. (2005) Ridge waveguide laser integrated with spot-size converter in a single step epitaxial for high coupling efficiency to single-mode fibres. Chinese Physics Letters, 22(1), pp. 114-116. (doi: 10.1088/0256-307X/22/1/032)

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Abstract

A 1.55-μm laser diode integrated with a spot-size converter was fabricated in a single step epitaxial by using the conventional photolithography and chemical wet etching process. The device was constructed by a conventional ridge waveguide active layer and a larger passive ridge-waveguide layer. The threshold current was 40 mA together with high slope efficiency of 0.24 W/A. The beam divergence angles in the horizontal and vertical directions were as small as 12.0 degrees ×15.0 degrees , respectively, resulting in about 3.2-dB coupling losses with a cleaved optical fibre.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hou, Dr Lianping
Authors: Hou, L.-P., Wang, W., and Zhu, H.-L.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Chinese Physics Letters
Publisher:Institute of Physics Publishing Ltd.
ISSN:0256-307X
ISSN (Online):1741-3540

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