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Holmium laser gain medium and holmium laser

A technology of gain medium and holmium laser, which is applied in the direction of lasers, laser components, and the structure/shape of active media, can solve the problems of energy consumption, time-consuming thermal diffusion bonding process, etc., to reduce the overall cost and improve the degree of freedom and the effect of flexibility

Pending Publication Date: 2021-11-12
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The invention provides a holmium laser gain medium and a holmium laser, which can solve the problems of time-consuming and energy-consuming thermal diffusion bonding process in the existing gain medium

Method used

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  • Holmium laser gain medium and holmium laser
  • Holmium laser gain medium and holmium laser
  • Holmium laser gain medium and holmium laser

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Embodiment Construction

[0048] The present invention is described in detail below in conjunction with examples, but the present invention is not limited to these examples.

[0049] An embodiment of the present invention provides a Ho laser gain medium, such as Figure 1 to Figure 3 As shown, it includes: a Ho-doped part 11 , a Tm-doped part 12 and a substrate sheet 13 .

[0050] Wherein, the Ho-doped part 11 is any solid-state gain medium that can cover the emission wavelength of the Tm-doped part 12 with an absorption band, and can realize the output of the Ho laser 42, such as laser crystals, ceramics or glass; crystals such as Ho:YAG, Ho:LuAG , Ho:YLF, Ho:LuLiF, Ho:YAP, Ho:KGW, Ho:YAB, Ho:GdVO 4 and Ho:YVO 4 Etc. Ceramics such as Ho:YAG, Ho:Y 2 o 3 and Ho:Sc 2 o 3 etc. Glasses such as Ho-doped silicate, phosphate or germanate glass. The doping concentration of Ho ions is 0.2at% to 2at% to avoid fluorescence quenching at high doping concentration. As an example, an orthorhombic Ho:YAP cryst...

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Abstract

The invention discloses a holmium laser gain medium and a holmium laser, belongs to the technical field of laser, and can solve the problem that a thermal diffusion bonding process in an existing gain medium is time-consuming and energy-consuming. The holmium laser gain medium comprises a substrate sheet, a Ho-doped part and a Tm-doped part, wherein the Ho-doped part and the Tm-doped part are arranged on the same surface of the substrate sheet; the Ho-doped part and the Tm-doped part are arranged side by side, and the end surfaces are attached; the Ho-doped part is a solid-state gain medium of which the absorption band can cover the emission wavelength of the Tm-doped part and can output Ho laser; and the Tm-doped part is a solid-state gain medium of which the emission wavelength is positioned in a resonance absorption band of the Ho-doped part and which can output Tm laser. The invention is used for the holmium laser gain medium.

Description

technical field [0001] The invention relates to a holmium laser gain medium and a holmium laser, belonging to the technical field of lasers. Background technique [0002] The laser wavelength (2.05-2.2 μm) of the eye-safe rare earth holmium (Ho) ion-doped solid-state laser is located in the atmospheric window and molecular fingerprint band, which can be detected by a large number of molecules (H 2 O, N 2 O and CO 2 ) resonance absorption, which has a wide range of application value and prospects in the fields of national defense security, environmental monitoring, and biomedicine. At the same time, the laser wavelength longer than 2.1 μm is far away from the cut-off absorption edge near 2 μm of the nonlinear optical crystal zinc-phosphorus-germanium (ZGP) and OP:GaAs, which is conducive to the realization of high-energy / power mid-infrared 3-5 μm laser output. The all-solid-state Ho laser gain medium has successively experienced Tm, Ho co-doped gain medium, single Ho ion d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/06H01S3/16
CPCH01S3/0604H01S3/0612H01S3/161H01S3/1638H01S3/1616H01S3/1643
Inventor 黄海洲林文雄黄见洪李锦辉翁文吴丽霞郑晖
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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