Optical frequency synthesizer

H - Electricity – 01 – S

Patent

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Details

H01S 5/06 (2006.01) H01S 5/065 (2006.01) H01S 5/0687 (2006.01) H03L 7/08 (2006.01)

Patent

CA 2523122

An optical frequency synthesizer controls a tunable laser to output signals having specific wavelengths. The synthesizer includes a wavelength discriminating device, a wavelength tuning device and a phase locked loop (PLL) circuit. The wavelength discriminating device receives a sample of the signals outputted by the tunable laser, processes the sample signals and passes the processed sample signals to the PLL circuit. Based on the processed sample signals, the PLL circuit controls the wavelength tuning device to tune the laser to output the signals having specific wavelengths.

L'invention concerne un synthétiseur de fréquence qui commande un laser accordable sur des signaux de sortie ayant des longueurs d'onde spécifiques. Ledit synthétiseur comporte une dispositif de discrimination de longueur d'onde, un dispositif d'accord de longueur d'onde et un circuit à boucle à phase asservie (PLL). Le dispositif de discrimination de longueur d'onde reçoit un échantillon des signaux sortis par le laser accordable, traite les signaux échantillons et transmet les signaux échantillons traités au circuit PLL. Sur la base des signaux échantillons traités, le circuit PLL commande le dispositif d'accord de longueur d'onde afin d'accorder le laser de manière à sortir des signaux ayant des longueurs d'onde spécifiques.

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