US 11,841,536 B1
Bi-directional optical communication device reduced in complexity and in number of components
Jie Huang, Zhongshan (CN)
Assigned to SHUNYUN TECHNOLOGY (ZHONG SHAN) LIMITED, Zhongshan (CN)
Filed by SHUNYUN TECHNOLOGY (ZHONG SHAN) LIMITED, Zhongshan (CN)
Filed on Dec. 27, 2022, as Appl. No. 18/089,000.
Claims priority of application No. 202211355090.7 (CN), filed on Nov. 1, 2022.
Int. Cl. G02B 6/293 (2006.01)
CPC G02B 6/293 (2013.01) 6 Claims
OG exemplary drawing
 
1. An optical communication device, comprising:
a board;
a wavelength-division multiplexer disposed on the board, comprising:
a first transparent element having a first flat surface and a first inclined plane;
a second transparent element having a second flat surface and second inclined plane;
a first central lens connected to the first flat surface;
a second central lens connected to the second flat surface; and
a light-splitting element attached to the first inclined plane and the second inclined plane;
an optical-signal transmitter disposed on the board, comprising:
a light emitting element configured to emit a first beam to the wavelength-division multiplexer; and
a first side lens affixed to the light emitting element, adjacent to the first central lens, and configured to focus the first beam;
an optical-signal receiver disposed on the board, comprising:
an optical sensor configured to detect a second beam emitted by the wavelength-division multiplexer; and
a second side lens affixed to the optical sensor, adjacent to the second central lens, and used to focus the second beam; and
an optical receptacle disposed on the board, and configured to connect to an optical fiber;
wherein the first transparent element, the second transparent element, the first central lens, the second central lens, and the light-splitting element are integrated into one optical element;
wherein the second beam is emitted from the optical fiber to the wavelength-division multiplexer, and the first beam is emitted from the wavelength-division multiplexer to the optical fiber.