Title:
VCSEL WITH PHOTONIC CRYSTAL MIRROR FOR WAVEGUIDING BY DIFFRACTION
Document Type and Number:
WIPO Patent Application WO2007119761
Kind Code:
B1
Abstract:
The present invention provides a surface emitting laser having a novel structure which eliminates necessity to provide a low refractive index medium at an interface of a photonic crystal layer on the side of a substrate. A multilayer mirror (1300), an active layer (1200), and a refractive index periodic structure layer (1020) whose refractive index changes periodically are laminated in a direction perpendicular to a substrate (1500). The refractive index periodic structure layer is structured so as to separate a light having a wavelength ? perpendicularly incident on the refractive index periodic structure into at least a transmitted light and a diffracted light. The multilayer mirror is structured so as to have a reflectance with regard to the diffracted light higher than a reflectance with regard to the transmitted light. A resonant mode is realized within a waveguide including the refractive index periodic structure layer and the multilayer mirror.
Inventors:
IKUTA MITSUHIRO (JP)
Application Number:
PCT/JP2007/058018
Publication Date:
May 22, 2008
Filing Date:
April 05, 2007
Export Citation:
Assignee:
CANON KK (JP)
IKUTA MITSUHIRO (JP)
IKUTA MITSUHIRO (JP)
International Classes:
H01S5/183; H01S5/10; H01S5/343
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