Invention Grant
US08989227B1 VCSEL driver maintaining steady operation from temperature effects of VCSEL diode using automatic bias control (ABC) and automatic modulation control (AMC) in optical transceiver
有权
VCSEL驱动器使用自动偏置控制（ABC）和光收发器中的自动调制控制（AMC），保持VCSEL二极管温度效应的稳定运行
- Patent Title: VCSEL driver maintaining steady operation from temperature effects of VCSEL diode using automatic bias control (ABC) and automatic modulation control (AMC) in optical transceiver
- Patent Title (中): VCSEL驱动器使用自动偏置控制（ABC）和光收发器中的自动调制控制（AMC），保持VCSEL二极管温度效应的稳定运行
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Application No.: US14319567Application Date: 2014-06-30
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Publication No.: US08989227B1Publication Date: 2015-03-24
- Inventor: Choong-Reol Yang
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR Daejeon
- Agency: William Park & Associates Patent Ltd.
- Priority: KR10-2013-0137078 20131112
- Main IPC: H01S3/00
- IPC: H01S3/00 ; H01S5/068 ; H01S5/183
Abstract:
In a VCSEL driver for automatic bias control and automatic modulation control, the VCSEL driver includes: a feedback module configured to receive an output of a VCSEL to provide a bias signal through a feedback loop; an automatic bias control block configured to adjust a bias current by switching on or off a plurality of power sources, which are connected in parallel with each other; an automatic modulation control block configured to connect in parallel a plurality of bias transistors that are connected to each of the plurality of power sources, and to adjust modulation current by switching each of the plurality of bias transistors on or off; and a main driver configured to provide the VCSEL with a drive current including the bias current and the modulation current, which are adjusted by control of each of the control blocks.
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