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Proceedings Paper

Electroabsorption-modulated DFB laser integrated with dual-waveguide spot-size converter
Author(s): Lianping Hou; Wei Wang; Hongliang Zhu; Baojun Wang; Fan Zhou
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Paper Abstract

A 1.55-μm ridge DFB laser and electroabsorption modulator monolithically integrated with a buried-ridge-stripe dual-waveguide spot-size converter at the output port for low-loss coupling to a cleaved single-mode optical fiber was fabricated by means of selective area growth, quantum well intermixing and dual-core technologies. These devices exhibit threshold current of 28 mA, side mode suppression ratio of 38.0 dB, 3-dB modulation bandwidth of 12.0 GHz, modulator extinction ratios of 25.0 dB dc. The output beam divergence angles of the spot-size converter in the horizontal and vertical directions are as small as 8.0°×12.6°, respectively, resulting in 3.2 dB coupling loss with a cleaved single-mode optical fiber.

Paper Details

Date Published: 5 December 2005
PDF: 7 pages
Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60200N (5 December 2005); doi: 10.1117/12.629242
Show Author Affiliations
Lianping Hou, Institute of Semiconductors (China)
Wei Wang, Institute of Semiconductors (China)
Hongliang Zhu, Institute of Semiconductors (China)
Baojun Wang, Institute of Semiconductors (China)
Fan Zhou, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 6020:
Optoelectronic Materials and Devices for Optical Communications
Shinji Tsuji; Jens Buus; Yi Luo, Editor(s)

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