WAVELENGTH-STABILISED NARROW-LINEWIDTH MODE-LOCKED PICOSECOND LASER SYSTEM
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United States of America Patent
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Mar 27, 2025
app pub date -
Jan 16, 2023
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Jan 16, 2023
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Abstract
A wavelength-stabilised narrow-linewidth mode-locked picosecond laser system comprises a laser cavity which includes an amplifier, a mode-locking element, and a fiber Bragg grating which acts as a narrowband reflector. The system includes a mount to which the fiber Bragg grating is mounted under tension, a tension control system to adjust the tension, and a measurement device to provide a measurement output related to a current operating wavelength of the fiber Bragg grating. A microcontroller or other controller wavelength-stabilises the laser by controlling the tension control system responsive to the measured wavelength.
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