Electroabsorption-Modulated DFB Laser Integrated with Dual-Waveguide Spot-Size Converter

Tsuji, S., Hou, L. , Buus, J., Wang, W., Zhu, H., Luo, Y., Wang, B. and Zhou, F. (2005) Electroabsorption-Modulated DFB Laser Integrated with Dual-Waveguide Spot-Size Converter. In: Asia-Pacific Optical Communications, Shanghai, China, 6-10 Nov 2005, 60200N. (doi: 10.1117/12.629242)

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.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Hou, Dr Lianping
• Authors: Tsuji, S., Hou, L., Buus, J., Wang, W., Zhu, H., Luo, Y., Wang, B., and Zhou, F.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• ISSN: 0277-786X