Title:
TWO-DIMENSIONAL PHOTONIC CRYSTAL LASER
Document Type and Number:
WIPO Patent Application WO/2010/023842
Kind Code:
A1
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.
Inventors:
NODA SUSUMU (JP)
IWAHASHI SEITA (JP)
KUROSAKA YOSHITAKA (JP)
SAKAI KYOSUKE (JP)
MIYAI EIJI (JP)
OHNISHI DAI (JP)
KUNISHI WATARU (JP)
IWAHASHI SEITA (JP)
KUROSAKA YOSHITAKA (JP)
SAKAI KYOSUKE (JP)
MIYAI EIJI (JP)
OHNISHI DAI (JP)
KUNISHI WATARU (JP)
Application Number:
PCT/JP2009/003924
Publication Date:
March 04, 2010
Filing Date:
August 18, 2009
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
NODA SUSUMU (JP)
IWAHASHI SEITA (JP)
KUROSAKA YOSHITAKA (JP)
SAKAI KYOSUKE (JP)
MIYAI EIJI (JP)
OHNISHI DAI (JP)
KUNISHI WATARU (JP)
NODA SUSUMU (JP)
IWAHASHI SEITA (JP)
KUROSAKA YOSHITAKA (JP)
SAKAI KYOSUKE (JP)
MIYAI EIJI (JP)
OHNISHI DAI (JP)
KUNISHI WATARU (JP)
International Classes:
H01S5/183; H01S5/185
Domestic Patent References:
| WO2005086302A1 | 2005-09-15 |
Foreign References:
| JP2004296538A | 2004-10-21 | |||
| JP2003023193A | 2003-01-24 | |||
| JP2007180120A | 2007-07-12 | |||
| JP2003332351A | 2003-11-21 | |||
| JP2007273730A | 2007-10-18 |
Other References:
See also references of EP 2330699A4
Attorney, Agent or Firm:
Kyoto International Patent Law Office (JP)
Patent business corporation Kyoto international patent firm (JP)
Patent business corporation Kyoto international patent firm (JP)
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