Work

Highly angular dependent high-contrast grating mirror and its application for transverse-mode control of VCSELs

Year: 2014

Type: article

Abstract: We report on the design and fabrication of a highly angular dependent high contrast grating (HCG) mirror. The modeling and experiment on amorphous-Si/SiO 2 HCG clearly show the large angular dependence of reflectivity, which enables single transverse-mode operations of large-area VCSELs. We fabricate 980 nm VCSELs with the angular dependent HCG functioning as a spatial frequency filter. We obtained the single transverse mode operation of the fabricated device in contrast to conventional VCSELs with semiconductor multilayer mirrors.

Source: Japanese Journal of Applied Physics

DOI: 10.7567/jjap.53.090306

Authors: Shunya Inoue, Junichi Kashino, Akihiro Matsutani, Hideo Ohtsuki, Takahiro Miyashita, Fumio Koyama

Institutions: Tokyo Institute of Technology, Samco Inc. (Japan), King Abdulaziz University

Language: English

Topic: Semiconductor Lasers and Optical Devices

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: Japan Society for the Promotion of Science

Award: Advances of integrated photonics for ultra-low power consumption optical interconnects