Invention Grant
- Patent Title: Optical receiver and a free-space optical communications using the same
- Patent Title (中): 光接收机和使用它的自由空间光通信
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Application No.: US12331164Application Date: 2008-12-09
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Publication No.: US07974543B2Publication Date: 2011-07-05
- Inventor: Jacob Khurgin , Isaac Shpantzer , Arkady Kaplan , Pak Shing Cho
- Applicant: Jacob Khurgin , Isaac Shpantzer , Arkady Kaplan , Pak Shing Cho
- Applicant Address: US MD Silver Spring
- Assignee: CeLight, Inc.
- Current Assignee: CeLight, Inc.
- Current Assignee Address: US MD Silver Spring
- Agent Nadya Reingand
- Main IPC: G02B6/26
- IPC: G02B6/26 ; H04B10/06
Abstract:
A device for phase distortion compensation across an optical beam is provided. The device is a part of an optical receiver, which can be used in free space optical communications, remote sensing, optical imaging and others. 2M inputs of the combiner interfere with each other via a system of tunable coupled waveguides. The phases in interleaved waveguides of the combiner are adjusted to maximize the resulting output signal. The combiner may be used for coherent communication in combination with a balanced 90° hybrid. Integrated solutions for the proposed device are provided.
Public/Granted literature
- US20090220246A1 OPTICAL RECEIVER AND A FREE-SPACE OPTICAL COMMUNICATIONS USING THE SAME Public/Granted day:2009-09-03
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