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Intermittent oscillated dual-wavelength full-solid-state laser

A dual-wavelength, laser technology, applied in the field of lasers, can solve the problems of low efficiency, instability and difficulty, and achieve the effect of eliminating mode competition, compact structure and high application value

Inactive Publication Date: 2005-11-30
SHANDONG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] On April 21, 2004, the Chinese Patent Publication No. CN2613077Y "composite cavity Q switch - long pulse dual-function high beam quality solid-state laser" patent application, this utility model patent only involves the compound cavity design, a laser crystal, a Q-switch , cannot achieve dual wavelength output
Due to the existence of mode competition, the efficiency is not high, the power output of each wavelength is low and unstable, and it is very difficult to ensure that the laser output of two wavelengths is the fundamental mode at the same time

Method used

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  • Intermittent oscillated dual-wavelength full-solid-state laser

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Experimental program
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Effect test

Embodiment 1

[0052] according tofigure 1 Fabricate a dual-wavelength all-solid-state laser with the same repetition frequency acousto-optic Q-switching time-delay intermittent oscillation. A diode laser for side pumping with an output wavelength of 0.808 μm. Laser gain medium Nd:YAG crystal 2, optical path conversion mirror 3 for 1.064 μm wavelength laser anti-reflection (45° incidence) and 1.319 μm wavelength laser high reflection (45° incidence) (mirror 3 can also be placed at the Brewster angle , so as to produce polarized light output of 1.064μm and 1.319μm), for 1.064μm high reflection and 1.319μm high transmission cavity mirror 7, for 1.319μm high reflection and 1.064μm high transmission cavity mirror 5, for 1.064μm antireflection Q-switch 6 for 1.319μm anti-reflection Q-switch 4, resonant cavity rear mirror 1 as the output mirror of dual-wavelength laser, has a certain transmittance for 1.064μm laser and 1.319μm laser, Q-switch driver 8 Output two RF signals with the same repetitio...

Embodiment 2

[0054] according to figure 1 A dual-wavelength all-solid-state laser intermittently oscillating with the same repetition frequency Q-switching time delay is fabricated. Diode laser for end pumping, output wavelength is 0.808μm, Nd:YVO 4 Laser crystal 2, resonant cavity rear mirror 1 for 1.064μm and 1.342μm dual-wavelength total reflection and 0.808μm high transparency, optical path for 1.064μm antireflection (45° incident) and 1.342μm high reflection (45° incident) Conversion reflector 3, Q-switch 6 for 1.064 μm anti-reflection, Q-switch 4 for 1.342 μm anti-reflection, two radio frequency signals output by Q-switch driver 8, the switching time of the two signals has a certain delay, 1.342 μm Laser output mirror 5, 1.064μm laser output mirror 7, using Nd 3+ Excellent laser properties of the crystal and its two emission lines 4 f 3 / 2 → 4 I 11 / 2 and 4 f 3 / 2 → 4 I 13 / 2 The 1.064μm laser and the 1.342μm laser oscillate intermittently in relatively independent cavities (th...

Embodiment 3

[0056] according to figure 1 A dual-wavelength all-solid-state laser intermittently oscillating with the same repetition frequency Q-switching time delay is fabricated. Diode lasers for side or end pumping with an output wavelength of 0.796 μm. Nd: YLF laser crystal, resonant cavity rear mirror 1 with dual wavelength high reflection for 1.053μm (1.047μm) and 1.313μm (1.321μm), antireflection for 1.053μm (45°) and high reflection for 1.313μm (45°) The optical path conversion mirror 3, the Q-switch 6 for 1.053 μm anti-reflection, the Q-switch 4 for 1.313 μm anti-reflection, two radio frequency signals with the same repetition frequency output by the Q-switch driver 8, but the Q-switch time delay, 1.313μm laser output mirror 5, 1.053μm laser output mirror 7, using Nd 3+ Excellent laser properties of the crystal and its two emission lines 4 f 3 / 2 → 4 I 11 / 2 and 4 f 3 / 2 → 4 I 13 / 2 The 1.053 μm laser and the 1.313 μm laser oscillate intermittently in relatively independent...

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Abstract

This invention provide one interval oscillator double wavelength complete solid laser, which uses semi-conductor laser as pump source and mixes with Nd3+. The laser crystal two ends are located with light path conversion lens and resonance chamber lens and comprise Q-switch and two independent tuning resonance chambers of chamber lens with Nd3+ laser crystal, light path conversion lens and resonance back lens. The Q switch is driven by the two radio signals with repeated frequency and time lag with Nd3+ mixed.

Description

Technical field: [0001] The invention relates to a laser, in particular to an all-solid-state laser. Background technique: [0002] In 1990, Shen Hongyuan and others published an article in Appl.Phys.Lett. "Various Nd-doped 3+ laser crystal 4 f 3 / 2 → 4 I 11 / 2 , 4 f 3 / 2 → 4 I 13 / 2 Comparison of simultaneous multiple wavelength lasing in various neodymium host crystals at transitions from 4 f 3 / 2 → 4 I 11 / 2 , and 4 f 3 / 2 → 4 I 13 / 2 )”, comparing four Nd-doped 3+ Possibility of crystal dual-wavelength laser oscillation output at the same time. [0003] On July 8, 1998, the Institute of Physics of the Chinese Academy of Sciences and Nanjing University applied for a utility model patent for "a laser that simultaneously outputs red, green, and blue ternary colors". An optical superlattice crystal is placed on the optical path of two resonant cavity mirrors as a parametric medium and a coupling parametric medium to form a laser that can simultaneously output red, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/05
Inventor 何京良王慧田祝世宁潘淑娣樊亚仙刘杰韩克祯范秀伟
Owner SHANDONG NORMAL UNIV
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