20250219740. Coherent Reception On/off (Intel)
COHERENT RECEPTION OF ON/OFF KEYING AND PULSE POSITION MODULATIONS
Abstract: an optical receiver implements a method to provide a digital output of a received on-off keyed optical signal. the method includes receiving an on-off keyed optical signal via a coherent optical front-end receiver utilizing a locally mixed laser lo for a reference signal to perform quadrature detection of the optical signal to generate an electrical signal, performing symbol/slot timing recovery on the electrical signal using a timing error detector, performing carrier frequency and phase recovery on a symbol/slot signal to generate a frequency and phase recovered signal, and demodulating the frequency and phase recovered signal via a demodulation circuit to provide a digital output representative of the received on-off keyed optical signal.
Inventor(s): Daniel Zeleznikar, Sundar Krishnamurthy, Deepak Dasalukunte, Ahmet Kirac, Jie Zhu, Conor O'Keeffe, Finbarr O'Regan, Ricard Menchon Enrich
CPC Classification: H04B10/6165 (Coherent receivers)
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- Patent Applications
- Intel Corporation
- CPC H04B10/6165
- Daniel Zeleznikar of Strongsville OH US
- Sundar Krishnamurthy of Dublin CA US
- Deepak Dasalukunte of Beaverton OR US
- Ahmet Kirac of San Jose CA US
- Jie Zhu of San Jose CA US
- Conor O'Keeffe of Cork IE
- Finbarr O'Regan of Innishannon IE
- Ricard Menchon Enrich of Barcelona ES