- Patent Title: Method and a device for transmitting optical signals with average power adapted to temperature and to ageing, and a corresponding computer program and program medium
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Application No.: US17553046Application Date: 2021-12-16
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Publication No.: US12160263B2Publication Date: 2024-12-03
- Inventor: Jean-Philippe Jaulin
- Applicant: SAGEMCOM BROADBAND SAS
- Applicant Address: FR Rueil Malmaison
- Assignee: SAGEMCOM BROADBAND SAS
- Current Assignee: SAGEMCOM BROADBAND SAS
- Current Assignee Address: FR Rueil Malmaison
- Agency: MUNCY, GEISSLER, OLDS & LOWE, P.C.
- Priority: FR2013734 20201218
- Main IPC: H04B10/079
- IPC: H04B10/079 ; H04B10/50 ; H04B10/564

Abstract:
A data transmission method including the step of controlling excitation current for a laser diode of a laser beam emitter device by servocontrolling the excitation current on laser beam power and by modulating the excitation current as a function of the data for transmission in order to encode the data with laser beam power levels, the method being characterized in that it includes the step of measuring a temperature (TINT) in the vicinity of the laser diode in order to perform, in accordance with the invention, two modes of operation having different setpoint values.
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