US 12,323,188 B2
Optical transceiver
Toshihiro Oda, Nisshin (JP); and Yuki Kamata, Nisshin (JP)
Assigned to DENSO CORPORATION, Kariya (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and MIRISE Technologies Corporation, Nisshin (JP)
Filed by DENSO CORPORATION, Kariya (JP); TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and MIRISE Technologies Corporation, Nisshin (JP)
Filed on Mar. 21, 2023, as Appl. No. 18/187,307.
Claims priority of application No. 2022-085299 (JP), filed on May 25, 2022.
Prior Publication US 2023/0388018 A1, Nov. 30, 2023
Int. Cl. H04B 10/40 (2013.01); H04B 10/25 (2013.01); H04B 10/50 (2013.01); H04B 10/572 (2013.01)
CPC H04B 10/40 (2013.01) [H04B 10/25891 (2020.05); H04B 10/506 (2013.01); H04B 10/572 (2013.01)] 3 Claims
OG exemplary drawing
 
1. An optical transceiver comprising:
a plurality of light sources having a ring resonator;
a reception antenna configured to receive light; and
a wavelength-separating filter configured to separate, from among the light received by the reception antenna, light of a same wavelength as light output from a part of the plurality of light sources,
wherein
the wavelength-separating filter is composed of the ring resonator included in the part of the plurality of light sources, and
M is a number of the plurality of light sources,
K is an integer that satisfies 1≤K≤M,
λK is a wavelength of light output from a Kth light source among the plurality of light sources,
N is an integer that satisfies 1≤N≤M−1,
an Nth light source among the plurality of light sources includes two ring resonators, which includes the ring resonator, configured to transmit light of a wavelength λN, and
the wavelength-separating filter is configured to separate the light of the wavelength λN using one of the two ring resonators of the Nth light source.