Title:
OPTICAL SCANNER, OPTICAL RECEIVER, AND OPTICAL DETECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/130720
Kind Code:
A1
Abstract:
An optical scanner comprises: a first mirror; a second mirror facing the first mirror; two non-waveguide regions interposed between the first mirror and the second mirror; an optical waveguide region interposed between the two non-waveguide regions; and two intermediate regions. The average refractive index of the optical waveguide region is higher than the average refractive index of each intermediate region, the average refractive index of each intermediate region is higher than the average refractive index of each non-waveguide region, and the first mirror emits a portion of light propagating through the optical waveguide region as emission light in a third direction intersecting with a virtual plane parallel to a first and a second direction. The third direction, which is the emission direction of the emission light, changes with a change in the refractive index and/or the thickness of the optical waveguide region.
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Inventors:
INADA YASUHISA
HASHIYA AKIRA
HIRASAWA TAKU
HASHIYA AKIRA
HIRASAWA TAKU
Application Number:
PCT/JP2018/037882
Publication Date:
July 04, 2019
Filing Date:
October 11, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G02F1/295; G01S7/481; G02B6/12; G02B26/08
Domestic Patent References:
| WO2004027471A1 | 2004-04-01 |
Foreign References:
| JP2001004852A | 2001-01-12 | |||
| JP2003329861A | 2003-11-19 | |||
| JP2009244714A | 2009-10-22 | |||
| JP2005227324A | 2005-08-25 | |||
| JP2013185849A | 2013-09-19 |
Other References:
NAKAMURA, KENSUKE ET AL.: "Slow-light bragg reflector waveguide array for two-dimensional beam steering", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 53, 31 January 2014 (2014-01-31), pages 038001 - 1 038001-3, XP055537235
GU, X. D. ET AL.: "Elecrto-thermal beam steering using bragg reflector waveguide amplifier", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 51, 2 February 2012 (2012-02-02), pages 020206 - 1 020206-3, XP055537237
NAKAHAMA, MASANORI ET AL.: "Lateral integration of MEMS VCSEL and slow light amplifier", 17TH MICROOPTICS CONFERENCE (MOC' 11, 30 October 2011 (2011-10-30), XP032078456
GU, X. D. ET AL.: "Elecrto-thermal beam steering using bragg reflector waveguide amplifier", JAPANESE JOURNAL OF APPLIED PHYSICS, vol. 51, 2 February 2012 (2012-02-02), pages 020206 - 1 020206-3, XP055537237
NAKAHAMA, MASANORI ET AL.: "Lateral integration of MEMS VCSEL and slow light amplifier", 17TH MICROOPTICS CONFERENCE (MOC' 11, 30 October 2011 (2011-10-30), XP032078456
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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