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A device and method for ensuring the frequency stability of a microchip laser

A technology of frequency stability and microchip lasers, which is applied to lasers, laser components, phonon exciters, etc., can solve problems such as poor stability, and achieve the effects of ensuring frequency stability, simple device structure, and convenient operation

Active Publication Date: 2021-08-10
INNO LASER TECH CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the deficiency of poor frequency stability of existing microchip lasers, the present invention provides a device for ensuring the frequency stability of microchip lasers

Method used

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  • A device and method for ensuring the frequency stability of a microchip laser
  • A device and method for ensuring the frequency stability of a microchip laser
  • A device and method for ensuring the frequency stability of a microchip laser

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Embodiment

[0040] In this embodiment, the continuous pump source 1 is a single-mode polarization-maintaining fiber-coupled semiconductor laser diode with an output wavelength of 808 nm, an output power of 120 mW, and a fiber core diameter of 10 μm. The pulsed fiber pump source 2 is a single-mode polarization-maintaining fiber-coupled semiconductor laser diode with an output wavelength of 808nm, an output power of 40mW, a fiber core diameter of 10μm, and an adjustable pulse repetition frequency of 50kHz-100kHz.

[0041] The size of the polarizing beam splitter 3 is 8×8×8mm, which can split the 808nm wavelength laser light, the transmittance for P light is >95%, the transmittance for S light is 99%, the reflectivity for P light is <5%.

[0042] The first collimating lens 4 is an aspheric lens with a focal length of 7.6 mm; the second collimating lens 5 is an aspheric lens with a focal length of 7.6 mm; the beam coupling lens 6 is an aspheric lens with a focal length of 38 mm. The first c...

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Abstract

The invention discloses a device and method for ensuring the frequency stability of a microchip laser, wherein the device includes a continuous pumping source (1), a first collimating lens (4), and a beam coupling lens arranged in sequence along the optical path (6) and microchip (7), also comprise pulse fiber pumping source (2) and second collimating lens (5), between described first collimating lens (4) and beam coupling lens (6) A polarization beam splitter prism (3) is provided; when the pulse fiber pump source (2) emits laser light, the laser beam is converged to the micro on the sheet (7). The invention couples a beam of continuous pumping light and a beam of pulse pumping light with adjustable repetition frequency and duty ratio through a polarization beam splitter, and realizes microchip Stable and controllable output of laser pulse repetition frequency.

Description

technical field [0001] The invention belongs to the technical field of solid-state lasers, and in particular relates to a device and method for ensuring the frequency stability of a microchip laser. Background technique [0002] Microchip lasers have the characteristics of full solidification, small size, simple structure, and are suitable for mass production. They can obtain lasers with linear polarization, adjustable pulse frequency, good beam quality, small divergence angle, stable pulse amplitude, and optional wavelength. It has been widely used in many fields and has high cost performance. [0003] For example, the Chinese patent literature with the publication number CN110854658A discloses a high repetition rate 1.5um human eye-safe Q-switched microchip laser, which includes a semiconductor pump source arranged in sequence; a coupling system; a first cavity mirror; a gain medium; a Q-switched crystal ; the second cavity mirror; wherein the pumping light emitted by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/131H01S3/0941
CPCH01S3/0941H01S3/1312
Inventor 胡淼刘斌
Owner INNO LASER TECH CORP LTD
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