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1. (WO2017150387) 2D PHOTONIC CRYSTAL SURFACE EMISSION LASER AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/2017/150387    International Application No.:    PCT/JP2017/007184
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Sat Feb 25 00:59:59 CET 2017
IPC: H01S 5/183
Applicants: KYOTO UNIVERSITY
国立大学法人京都大学
ROHM CO., LTD.
ローム株式会社
HAMAMATSU PHOTONICS K.K.
浜松ホトニクス株式会社
MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: NODA, Susumu
野田 進
TANAKA, Yoshinori
田中 良典
DE ZOYSA, Menaka
デ ゾイサ メーナカ
Title: 2D PHOTONIC CRYSTAL SURFACE EMISSION LASER AND METHOD FOR PRODUCING SAME
Abstract:
This 2D photonic crystal surface emission laser 10 comprises: a 2D photonic crystal layer 12 having a different refractive index region 122, which comprises a first different refractive index region 1221 and a second different refractive index region 1222 having different refractive indices to a plate-like base material 121, positioned cyclically on the base material 121; and an active layer 11 provided to one side of the base material 121, wherein the planar shape of the first different refractive index region 1211 has a surface area that is greater than or equal to the planar shape of the second different refractive index region 1222, and the first different refractive index region 1221 is thinner than the second different refractive index region 1222. As a result of this configuration, it is possible to have the volumes of the first different refractive index region 1221 and the second different refractive index region 1222 approximate one another, increase the effect of interference of light, the propagation direction of which varies between the two different refractive index regions, and thus obtain laser light having a higher output.