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US 2026/0142437 A1Published application
Laser system and laser stabilization method
AssigneeKorea Advanced Institute of Science and Technology
InventorsJungwon KIM, Igju JEON
Life of this patent
Estimating the term…
Abstract
A laser system comprises a laser; an interferometer-type length reference module in the form of an interferometer including a delay line, the length reference module and being configured to receive an optical signal including output of the laser and output an interference signal; and a dual stabilization module configured to stabilize the frequency of the laser to the delay line based on the interference signal and to stabilize the delay line to an optical atomic reference.
Claims15
A laser system comprising:
- a laser;
- an interferometer-type length reference module including a delay line, the length reference module being configured to receive an optical signal including output of the laser and output an interference signal;
- and
- a dual stabilization module configured to stabilize a frequency of the laser to the delay line based on the interference signal and to stabilize the delay line to an optical atomic reference.
1 more element
A laser system, comprising:
- a length reference module configured to receive an optical signal in which a reference optical signal stabilized to an optical atomic reference and at least one target optical signal output from at least one target laser to be stabilized are combined, and output an interference signal generated by interference between two optical signals that have passed through a reference path and a delay path including a delay line;
- a wavelength divider configured to separate a first interference signal corresponding to a wavelength of the reference optical signal and at least one second interference signal corresponding to a wavelength of the at least one target optical signal in the interference signal;
- a first servo system configured to generate a first feedback signal for compensating fluctuation of the delay line with respect to the optical atomic reference based on a first error signal obtained through photodetection for the first interference signal, and transmit the first feedback signal to the length reference module;
- and
- a second servo system configured to generate a second feedback signal for compensating frequency fluctuation of the corresponding target laser with respect to the delay line based on a second error signal obtained through photodetection for the second interference signal, and transmit the second feedback signal to the corresponding target laser.
2 more elements
A laser system, comprising:
- a length reference module configured to receive an optical signal output from a laser and output an interference signal generated by interference between two optical signals that have passed through a reference path and a delay path including a delay line;
- a first servo system configured to generate a first feedback signal for compensating frequency fluctuation of the laser with respect to the delay line based on a first error signal obtained through photodetection for the interference signal, and transmit the first feedback signal to the laser;
- an atomic vapor cell through which the optical signal output from the laser passes;
- and
- a second servo system configured to generate a second feedback signal for compensating fluctuation of the delay line with respect to the atomic vapor cell based on a second error signal obtained through photodetection for the optical signal that has passed through the atomic vapor cell, and transmit the second feedback signal to the length reference module.
2 more elements
Dependencies are inferred from the claim text.