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Laser diode pumping Kerr-lens mode locking Yb:(YLa)2O3 all-solid-state femtosecond laser device

A technology of laser diodes and femtosecond lasers, applied in the field of lasers, can solve the problems of limited mode-locking pulse width, etc., achieve good practicability and operability, suitable for repeated production and assembly, and compact structure

Active Publication Date: 2014-08-06
XIDIAN UNIV
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  • Description
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  • Application Information

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Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a Kerr lens mode-locked Yb:(YLa) pumped by a laser diode 2 o 3 An all-solid-state femtosecond laser designed to solve the existing problem in Yb:(YLa) 2 o 3 SESAM mode-locking is all implemented in ceramics, and the shortest pulse width is 357fs. The problem of limited pulse width in mode-locking

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  • Laser diode pumping Kerr-lens mode locking Yb:(YLa)2O3 all-solid-state femtosecond laser device
  • Laser diode pumping Kerr-lens mode locking Yb:(YLa)2O3 all-solid-state femtosecond laser device
  • Laser diode pumping Kerr-lens mode locking Yb:(YLa)2O3 all-solid-state femtosecond laser device

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specific Embodiment

[0045] Kerr lens mode-locked Yb:(YLa) pumped by laser diode 2 o 3 An all-solid-state femtosecond laser, including: a pump source for outputting pump laser light; an optical coupling focusing system for focusing the pump laser light to Yb:(YLa) 2 o 3 On laser ceramics; laser ceramics Yb:(YLa) 2 o 3 , used to form the laser gain; the first concave mirror and the second concave mirror, used to form the confocal structure; the GTI mirror, used to provide negative dispersion in the cavity; the plane mirror, used to form one end mirror of the resonator ; The first triangular prism and the second triangular prism are used to provide negative dispersion in the cavity; the output mirror is used to form the other end mirror of the resonator and couple the gain laser light;

[0046] Both sides of the optical coupling focusing system are coated with a high-transmittance dielectric film for the pump laser; the first concave mirror and the second concave mirror form a tight focusing sys...

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Abstract

The invention discloses a laser diode pumping Kerr-lens mode locking Yb:(YLa)2O3 all-solid-state femtosecond laser device. Yb:(YLa)2O3 laser ceramics, a pumping source, an optical coupling focusing system, two concave mirrors, two triple prisms, a GTI reflecting mirror, a plane mirror and an output mirror are arranged. According to the device, Kerr-lens mode locking is achieved on the Yb:(YLa)2O3 laser ceramics at the first time, 170 fs of mode locking pulses are output, the half-width of a mode-locking pulse spectrum is 7.7 nm, and the average output power is 140 mW. The device has the advantages of being good in practicability and operability, compact, small and exquisite in structure, suitable for repeated production and assembling, and mass production and lower in cost, achieving single-way laser output, high repetition frequency and femtosecond magnitude pulse width, and being high in stability and light beam quality, can be widely applied to the fields of national defense, industries, medical treatment and scientific research, and has the good application prospects and commercial value.

Description

technical field [0001] The invention belongs to the field of laser technology, in particular to a Kerr lens mode-locked Yb:(YLa) pumped by a laser diode 2 o 3 All-solid-state femtosecond laser. Background technique [0002] The all-solid-state femtosecond laser pumped by laser diodes has the advantages of compact structure, high efficiency, and good stability. It can output laser pulses with high peak power, narrow pulse width, and high beam quality. It is widely used in military, industrial, The fields of medical treatment and scientific research are one of the hot spots of laser research at present. [0003] With the development of high-power, high-brightness laser diodes, various all-solid crystals, ceramics, and other materials are used in the research of generating femtosecond lasers. Among many materials, doped Yb 3+ Ionic laser materials have great advantages. This crystal has many excellent characteristics, such as no absorption of excited states, no cross relaxa...

Claims

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Application Information

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IPC IPC(8): H01S3/08H01S3/098
Inventor 魏志义朱江峰高子叶王军利王振琳
Owner XIDIAN UNIV
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