Electroabsorption-modulated DFB laser integrated with dual-waveguide spot-size converter

Lianping Hou; Wei Wang; Hongliang Zhu; Baojun Wang; Fan Zhou

doi:10.1117/12.629242

5 December 2005 Electroabsorption-modulated DFB laser integrated with dual-waveguide spot-size converter

Lianping Hou, Wei Wang, Hongliang Zhu, Baojun Wang, Fan Zhou

Proceedings Volume 6020, Optoelectronic Materials and Devices for Optical Communications; 60200N (2005) https://doi.org/10.1117/12.629242
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China

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.

Citation Download Citation

Lianping Hou, Wei Wang, Hongliang Zhu, Baojun Wang, and Fan Zhou "Electroabsorption-modulated DFB laser integrated with dual-waveguide spot-size converter", Proc. SPIE 6020, Optoelectronic Materials and Devices for Optical Communications, 60200N (5 December 2005); https://doi.org/10.1117/12.629242

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