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US 11,699,891 B2Granted
Laser device
AssigneeNkt Photonics A/S
InventorsJens E. Pedersen, Poul Varming, Christian V. Poulsen, Thomas O. Fagerhoj, Bjarke Goth, Henrik Sorensen
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Abstract
A laser device includes a laser configured to generate laser light and a laser control module configured to receive at least a portion of the laser light generated by the laser, to generate a control signal and to feed the control signal back to the laser for stabilizing the frequency, wherein the laser control module includes a tunable frequency discriminating element which is preferably continuously frequency tunable, and where the laser control module is placed outside the laser cavity.
Claims21
A laser device, comprising:
- a tunable laser comprising a laser cavity;
- and
- a laser control module,
- wherein:
- the tunable laser is configured to generate laser light having a center frequency,
- the laser control module is configured to receive at least a portion of the laser light generated by the tunable laser, to generate a control signal and to feed the control signal back to the tunable laser for stabilizing the frequency, and
- the laser control module comprises a frequency discriminating element having a center frequency, wherein the center frequency of the frequency discriminating element is temperature tunable.
4 more elements
Dependencies are inferred from the claim text.