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Japanese Patent JP7199035

B2

An optical device includes a first waveguide that propagates light in a first direction; and a second waveguide including a first mirror, a second mirror, and an optical waveguide layer. The first mirror extends in the first direction and has a first reflecting surface parallel to the first direction and a second direction intersecting the first direction, and the second mirror extends in the first direction and has a second reflecting surface facing the first reflecting surface. The optical waveguide layer is located between the first mirror and the second mirror and propagates the light in the first direction. A forward end portion of the first waveguide is disposed inside the optical waveguide layer. In a region in which the first waveguide and the second waveguide overlap each other when viewed in a direction perpendicular to the first reflecting surface, at least part of the first waveguide and/or at least part of the second waveguide includes at least one grating whose refractive index varies periodically in the first direction.

Kaoru Hashitani
Anju Inada
Taku Hirasawa

JP2019005562A

January 05, 2023

January 16, 2019

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Panasonic IP Management Co., Ltd.

G02F1/29; G01C3/06; G01S7/481; G01S17/89; G02B6/124; G02B6/34; G02F1/13

JP49084457A
JP2005227324A
JP2017157609A
JP2013016591A
JP4079287A

US8995038

GU, X et al. ,Giant and high-resolution beam steering using slow-light waveguide amplifier,Optics Express,米国,OSA Publishing,2011年11月07日,Vol.19, No.23,pp.22675-22683
NAKAMURA, K. et al.,Slow-light Bragg reflector waveguide array for two-dimensional beam steering,Japanese Journal of Applied Physics,日本,日本応用物理学会,2014年01月31日,Vol.53,038001-1 - 038001-3

Okuda Seiji
Kita Osamu
Kajitani Mido
Akiko Miyake
Hidetaka Okabe
Toru Kawakita
Yu Tanaka
Shigeyasu Murase

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