US 12,147,077 B2
Optical module, adjustment device, and adjustment method
Hiroshi Morita, Kanagawa (JP); Kazuaki Toba, Kanagawa (JP); and Masanari Yamamoto, Kanagawa (JP)
Assigned to SONY GROUP CORPORATION, Tokyo (JP)
Appl. No. 17/774,109
Filed by SONY GROUP CORPORATION, Tokyo (JP)
PCT Filed Nov. 10, 2020, PCT No. PCT/JP2020/041799
§ 371(c)(1), (2) Date May 3, 2022,
PCT Pub. No. WO2021/095702, PCT Pub. Date May 20, 2021.
Claims priority of application No. 2019-205348 (JP), filed on Nov. 13, 2019.
Prior Publication US 2022/0390674 A1, Dec. 8, 2022
Int. Cl. G02B 6/25 (2006.01); G02B 6/42 (2006.01)
CPC G02B 6/25 (2013.01) [G02B 6/421 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An optical module comprising:
a light emitting element; and
an optical waveguide configured to propagate light from the light emitting element,
wherein the light propagating through the optical waveguide is light having components of a fundamental mode and a first order mode,
wherein the light having the components of the fundamental mode and the first order mode propagates through the optical waveguide while having a light intensity distribution in which high intensity portions alternately appear in one direction and another direction opposite to the one direction with respect to the center of a core along the optical waveguide,
wherein a light intensity distribution at an output end surface of the optical waveguide is a light intensity distribution corresponding to an intermediate position between a first position where the high intensity portion is in the one direction and a second position where the high intensity portion is in the another direction, and
wherein the optical waveguide propagates only a component of the fundamental mode at a first wavelength.