Title:
LASER REFLECTING MIRROR AND SURFACE EMITTING LASER DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2014/030361
Kind Code:
A1
Abstract:
In a polarization bistable surface emitting laser (30), a polarization-independent HCG that includes a two-dimensional lattice structure (37) formed in a surface SiO2 layer on a SOI substrate is used as a reflecting mirror below an active region, and a polarization-independent HCG that includes a two-dimensional lattice structure (38) of an airbridge structure is used as a reflecting mirror above the area. Since this HCG is significantly thin as compared with a conventional DBR, the surface emitting laser can be thinned. Further, optical waveguides (24x, 24y) are formed in the surface SiO2 layer and are optically coupled with a resonator of the surface emitting laser (30), whereby light confined in the resonator can be selectively output to one of the optical waveguides (24x, 24y), according to a polarization state of the confined light. Thereby, the transfer of information to an adjacent surface emitting laser (30) is facilitated, and optical elements arranged in a space above the surface emitting laser (30) can be reduced so that the surface emitting laser as a device can be thinned and made more compact in size.
Inventors:
KAWAGUCHI HITOSHI (JP)
KATAYAMA TAKEO (JP)
IKEDA KAZUHIRO (JP)
KATAYAMA TAKEO (JP)
IKEDA KAZUHIRO (JP)
Application Number:
PCT/JP2013/051498
Publication Date:
February 27, 2014
Filing Date:
January 24, 2013
Export Citation:
Assignee:
NAT UNIV CORP NARA INST (JP)
International Classes:
H01S5/183; G02F3/00
Foreign References:
| JP2009295904A | 2009-12-17 |
Other References:
YU WAKABAYASHI ET AL.: "Reflection Characteristics of Broadband Mirrors Using a Subwavelength Grating", TECHNICAL REPORT OF IEICE, OPE, vol. 110, no. 437, March 2011 (2011-03-01), pages 7 - 12
HITOSHI KAWAGUCHI: "Polarization Bistable VCSELs and Their Application for Photonic Buffer Memory", THE REVIEW OF LASER ENGINEERING, vol. 37, no. 8, August 2009 (2009-08-01), pages 608 - 613
IL-SUG CHUNG ET AL.: "Silicon-photonics light source realized by III-V/Si-grating-mirror laser", APPLIED PHYSICS LETTERS, vol. 97, no. 15, 2010, pages 15113
HITOSHI KAWAGUCHI: "All-Optical Signal Processing Using Bistable Semiconductor Lasers", THE REVIEW OF LASER ENGINEERING, vol. 40, no. 5, May 2012 (2012-05-01), pages 369 - 374
HITOSHI KAWAGUCHI: "Polarization Bistable VCSELs and Their Application for Photonic Buffer Memory", THE REVIEW OF LASER ENGINEERING, vol. 37, no. 8, August 2009 (2009-08-01), pages 608 - 613
IL-SUG CHUNG ET AL.: "Silicon-photonics light source realized by III-V/Si-grating-mirror laser", APPLIED PHYSICS LETTERS, vol. 97, no. 15, 2010, pages 15113
HITOSHI KAWAGUCHI: "All-Optical Signal Processing Using Bistable Semiconductor Lasers", THE REVIEW OF LASER ENGINEERING, vol. 40, no. 5, May 2012 (2012-05-01), pages 369 - 374
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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