Microgear laser

被引：107
作者：
Fujita, M [1 ]
Baba, T [1 ]
机构：
[1] Yokohama Natl Univ, Div Elect & Comp Engn, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan
来源：
APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 12期
关键词：
D O I：
10.1063/1.1462867
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A microlaser, microgear, composed of a microdisk and a rotationally symmetric Bragg grating is described. A GaInAsP-InP device with mum radius was fabricated and the room-temperature continuous-wave operation was obtained by photopumping with a low threshold of 17 muW. The experiment clearly demonstrated that the Q factor in a microdisk was enhanced by the microgear due to the minimization of the radiation field. Resonant spectra showed some unique mode characteristics influenced by an elliptical cavity. These results suggest a potential of advanced engineering of whispering-gallery-mode laser with a photonic crystal, the generalized Bragg grating. (C) 2002 American Institute of Physics.
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页码：2051 / 2053
页数：3
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