Broadband Ti:sapphire tunable Raman laser

A titanium sapphire and laser technology, which is applied in the field of broadband titanium sapphire tunable Raman lasers, can solve the problem of untunable output wavelength and achieve the effect of expanding the output wavelength range

Active Publication Date: 2013-12-04
LASER TECH TIANJIN MAIMAN
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Problems solved by technology

In 2008, A.J.Lee pumped with 880nm semiconductor laser, Nd:GdVO 4 Since Raman, LBO internal frequency doubling, 2.51W 586.5nm yellow laser output has been obtained, but the above research is aimed at the frequency shift of the fixed band laser, and its output wavelength is not tunable

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  • Broadband Ti:sapphire tunable Raman laser

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Embodiment Construction

[0016] The present invention will be described in detail below with reference to the drawings and examples.

[0017] figure 1 It is the optical path diagram of the broadband Ti:Sapphire tunable Raman laser of the present invention.

[0018] Such as figure 1 As shown, the broadband titanium sapphire tunable Raman laser of the present invention includes: laser total reflection mirror 1, acousto-optic Q switch 2, semiconductor laser module 3, harmonic plate 4, frequency doubling crystal 5, green light output mirror 6, focusing mirror 7, titanium sapphire crystal 8, Raman reflector 9, Raman crystal 10, Raman output mirror 11, harmonic prism pair 12 and titanium sapphire total reflection mirror 13, including laser total reflection mirror 1, acousto-optic Q switch 2, semiconductor laser module 3. Harmonic plate 4, frequency doubling crystal 5 and green light output mirror 6 form a green laser, which outputs high-power quasi-continuous green light. After the green light is output, ...

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Abstract

The invention provides a broadbandTi:sapphire tunable Raman laser. According to the broadband Ti:sapphire tunable Raman laser, a green laser is composed of a laser total-reflection mirror, an acousto-optic Q switch, a semiconductor laser module, a harmonic wave sheet, a frequency doubling crystal and a green laser output mirror. An LDA pump laser gain material is used for generating 1064mm laser. A 532mm laser is generated through the frequency doubling crystal. Pumping is conducted by the 532mm laser on a Ti:sapphire crystal, so that 1000nm-1100nm wave length is generated. A Raman reflecting mirror and a Raman output mirror constitute a resonance cavity. The laser generates simulated Raman scattering under the feedback action of the resonance cavity after passing through a Raman crystal. Through selection of a prism pair and a reflecting mirror, the wave length continuous tunable function is achieved. After the laser passes through the Raman crystal, due to the Raman effect, the frequency shift function is achieved. Finally, long wave length beyond the spectral line of emission of the Ti:sapphire laser is output. The broadband Ti:sapphire tunable Raman laser expands the output wave length range of the Ti:sapphire laser.

Description

technical field [0001] The invention relates to the technical field of solid-state lasers, in particular to a broadband titanium sapphire tunable Raman laser capable of continuously tunable wavelengths and realizing long-wavelength output beyond the emission spectrum of the titanium sapphire laser. Background technique [0002] Stimulated Raman scattering can also realize the frequency conversion of laser light waves, which is one of the important means of laser nonlinear frequency conversion. In 2004, Y F Chen published an article on Optics Letters "Compact efficient all solid state eye safe laser with self-frequency conversion in a Nd:YVO4 crystal, "Using the 1342nm spectral line of Nd:YVO4 to generate 1525nm band laser from Raman, when the Q switch modulation frequency is 20kHz and the pump power is 13.5W, the 1.2W 1525nm laser output is obtained, 2009 Y TChang's article "Compact efficient Q-switched eye-safe laser at 1525 nm with a double-end diffusion-bonded Nd:YVO4 cry...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/16H01S3/108H01S3/0941
Inventor 李斌孙冰
Owner LASER TECH TIANJIN MAIMAN
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