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Proceedings Paper

Unidirectional-emission, single-mode, whispering-gallery-mode microlasers
Author(s): Yong-Zhen Huang; Jian-Dong Lin; Yue-De Yang; Qi-Feng Yao; Xiao-Meng Lv; Jin-Long Xiao; Yun Du
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Paper Abstract

Unidirectional-emission microlasers are greatly demanded for photonic integrated circuits and optical interconnection. In this paper, the mode characteristics of circular and coupled-circular microresonators with a bus waveguide are numerically simulated by finite-difference time-domain technique. For a circular microresonator connected with a bus waveguide, coupled-mode between two whispering-gallery modes can have high mode Q factor for realizing unidirectional-emission lasing. In addition, symmetry and antisymmetry coupled modes are analyzed for the coupledcircular microresonator with a middle bus waveguide. Furthermore, the output characteristics of a coupled-circular microlaser, which is fabricated by standard photolithography and inductively-coupled-plasma (ICP) etching techniques, are reported. Single mode operation is realized for the coupled-circular microlaser with a radius of 20 μm and a 2-μmwidth bus waveguide.

Paper Details

Date Published: 6 February 2012
PDF: 8 pages
Proc. SPIE 8236, Laser Resonators, Microresonators, and Beam Control XIV, 82360M (6 February 2012); doi: 10.1117/12.906110
Show Author Affiliations
Yong-Zhen Huang, Institute of Semiconductors (China)
Jian-Dong Lin, Institute of Semiconductors (China)
Yue-De Yang, Institute of Semiconductors (China)
Qi-Feng Yao, Institute of Semiconductors (China)
Xiao-Meng Lv, Institute of Semiconductors (China)
Jin-Long Xiao, Institute of Semiconductors (China)
Yun Du, Institute of Semiconductors (China)

Published in SPIE Proceedings Vol. 8236:
Laser Resonators, Microresonators, and Beam Control XIV
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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