Invention Grant
- Patent Title: Optical circulator for free space optical communication
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Application No.: US16055801Application Date: 2018-08-06
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Publication No.: US10461854B2Publication Date: 2019-10-29
- Inventor: Chiachi Wang
- Applicant: X Development LLC
- Applicant Address: US CA Mountain View
- Assignee: X Development LLC
- Current Assignee: X Development LLC
- Current Assignee Address: US CA Mountain View
- Agency: Botos Churchill IP Law
- Main IPC: H04B10/11
- IPC: H04B10/11 ; H04B10/2581 ; H04J14/02 ; H04B10/25 ; H04B10/112 ; H04B10/60 ; H04B10/40 ; H04B10/50

Abstract:
A free space optical communication system transmits and receives optical signals in a colorless manner using an optical circulator. The system installs the optical circulator with a single mode (SM) fiber at port 1, a double clad (DC) fiber at port 2, and a multimode (MM) fiber at port 3. The system injects a first optical signal into a core of the SM fiber. The system then routes the first optical signal at port 1, using the optical circulator, into a SM core of the DC fiber via Port 2. Further, the system injects a second optical signal into a first cladding of the DC fiber. The system then routes the second optical signal at port 2, using the optical circulator, into the MM fiber via Port 3.
Public/Granted literature
- US20180375575A1 Optical Circulator For Free Space Optical Communication Public/Granted day:2018-12-27
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