Invention Grant
- Patent Title: Avalanche photodiode bias control in passive optical networks
- Patent Title (中): 无源光网络中的雪崩光电二极管偏置控制
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Application No.: US13930301Application Date: 2013-06-28
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Publication No.: US09479264B2Publication Date: 2016-10-25
- Inventor: Ning Cheng , Guo Wei , Zhenxing Liao
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Conley Rose, P.C.
- Agent Grant Rodolph; Jonathan K. Polk
- Main IPC: H04B10/60
- IPC: H04B10/60 ; H01S3/04 ; H04B10/06 ; H04B10/69
Abstract:
An apparatus comprising a receiver optical subassembly (ROSA) configured to receive an optical signal, wherein the ROSA comprises an optical-electrical (O/E) converter configured to convert the optical signal into an electrical signal, and a processor coupled to the ROSA and configured to calibrate an O/E converter bias, wherein calibrating the O/E converter bias comprises reading an initial O/E converter dark current measurement, adjusting the O/E converter bias with a voltage step, reading an adjusted O/E converter dark current measurement after the voltage step adjustment, and monitoring an O/E converter dark current change rate by subtracting the initial O/E converter dark current measurement from the adjusted O/E converter dark current measurement.
Public/Granted literature
- US20140003808A1 Avalanche Photodiode Bias Control in Passive Optical Networks Public/Granted day:2014-01-02
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