- 专利标题： Method for deskewing FPGA transmitter channels directly driving an optical QPSK modulator
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申请号： US17490941申请日： 2021-09-30
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公开(公告)号： US11558120B1公开(公告)日： 2023-01-17
- 发明人: Rafael A. Garcia , Eric Lidwa
- 申请人： United States of America as represented by the Administrator of NASA
- 申请人地址： US DC Washington
- 专利权人： United States of America as represented by the Administrator of NASA
- 当前专利权人： United States of America as represented by the Administrator of NASA
- 当前专利权人地址： US DC Washington
- 代理商 Christopher O. Edwards; Bryan A. Geurts; Helen M. Gaius
- 主分类号： H04B10/00
- IPC分类号： H04B10/00 ; H04B10/556
摘要：
A Field Programmable Gate Array (“FPGA”) transmitter reliability directly drives an optical modulator. Each time the FPGA is powered up, the transmitters are aligned using optical feedback for coarse and fine alignments. The fine alignment may be executed using a built-in transmitter phase interpolator Parts-Per-Million (“PPM”) controller.
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