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Two-dimensional photonic crystal laser

Foreign code F110005851
File No. AF08-04TW
Posted date Nov 2, 2011
Country Taiwan
Application number 98127339
Gazette No. 201010219
Gazette No. I487224
Date of filing Aug 14, 2009
Gazette Date Mar 1, 2010
Gazette Date Jun 1, 2015
Priority data
  • P2008-222384 (Aug 29, 2008) JP
Title Two-dimensional photonic crystal laser
Abstract Provided is a two-dimensional photonic crystal laser wherein the symmetry level of a spot of laser light is high.
The two-dimensional photonic crystal laser comprises a two-dimensional photonic crystal (15) where a large number of different-refractive-index regions (cavities) (152A-152D) being the same in shape but different in a refractive index from a planar member (151) are arranged periodically in the planar member (151), and an active layer provided on a side of the two-dimensional photonic crystal, wherein each different-refractive-index region is provided at the lattice point of a lattice having the same period in at least two directions, each differtnet-refractive-index region has a shape that gives different feedback strengths in two directions of a basic inverse vector provided by the lattice, the two-dimensional photonic crystal has a super-cell (154); -based periodic structure including a plurality lattice points, and the sum of feedback strengths by all different-refractive-index regions (cavities) (152A-152D) in the super cell (154) is equalized in each of two directions of the basic inverse vector.
  • Applicant
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • Inventor
  • NODA SUSUMU
  • IWAHASHI SEITA
  • KUROSAKA YOSHITAKA
  • SAKAI KYOSUKE
  • MIYAI EIJI
  • OHNISHI DAI
  • KUNISHI WATARU
IPC(International Patent Classification)
Reference ( R and D project ) CREST Photonics and Quantum Optics for the Creation of Innovative Functions AREA
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