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Single longitudinal mould Ho:YAP solid laser generator for pulse operation

A solid-state laser and single longitudinal mode technology, which is applied in lasers, phonon exciters, laser components, etc., can solve the problem of not being able to output single-frequency pulse 2.12μm laser in radar systems, and achieve the effect of stable output laser and small volume

Inactive Publication Date: 2013-12-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention is to solve the problem that the existing laser generator cannot output the single-frequency pulse 2.12 μm laser required by the radar system. The present invention provides a single longitudinal mode Ho:YAP solid-state laser generator with pulse operation

Method used

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  • Single longitudinal mould Ho:YAP solid laser generator for pulse operation

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specific Embodiment approach 1

[0018] Specific implementation mode one: see figure 1 Describe this embodiment mode, a kind of pulse operation described in this embodiment mode Ho:YAP solid-state laser generator, it comprises laser diode 21 and fiber laser 22, it also comprises Tm, Ho:YAP seed laser, coupling system , Ho:YAP pulsed laser and injection-locked servo system,

[0019] The Tm, Ho: YAP seed laser includes a first total reflection mirror 1, a Tm, Ho: YAP crystal 2, a first wavelength tuning element 3, a second wavelength tuning element 4 and an output coupling mirror 5;

[0020] The coupling system includes a first conversion lens 6, a half-wave plate 7, an optical isolation element 8, a first total reflection mirror 9, a second total reflection mirror 10 and a second conversion lens 11;

[0021] The Ho:YAP pulsed laser comprises a 2 μm output coupling mirror 12, a first 2 μm total reflection mirror 13, a Ho:YAP crystal 14, a first 2 μm total reflection mirror 15, a second 2 μm total reflection mi...

specific Embodiment approach 2

[0029] Specific implementation mode two: see figure 1 Describe this embodiment, the difference between this embodiment and the single longitudinal mode Ho:YAP solid-state laser generator with pulsed operation described in Embodiment 1 is that the coupling system includes a first conversion lens 6, a half A wave plate 7, an optical isolation element 8, a first total reflection mirror 9, a second total reflection mirror 10, and a second conversion lens 11; Tm, the seed light output by the Ho:YAP seed laser passes through the first conversion lens 6 and the second conversion lens in sequence. One-half wave plate 7 and optical isolation element 8 transmit on the first total reflection mirror 9, and the first total reflection mirror 9 reflects the seed light onto the second total reflection mirror 10, and the second total reflection mirror 10 will receive The seed light is reflected to the second conversion lens 11 , and the second conversion lens 11 transmits the received seed lig...

specific Embodiment approach 3

[0030] Specific implementation mode three: see figure 1 Describe this embodiment, the difference between this embodiment and the single longitudinal mode Ho:YAP solid-state laser generator of pulse operation described in the first or second embodiment is that the first total reflection mirror 1 is coated with an LD pump A dielectric film with high transmittance of pump light and high reflection of oscillating light, the output coupling mirror 5 is coated with a dielectric film with high transmittance of LD pump light and partial transmission of oscillating light, and the 2 μm output coupling mirror 12 is coated with a dielectric film that is highly transparent to oscillating light Partially transmitting dielectric film.

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Abstract

The invention relates to a single longitudinal mould Ho:YAP solid laser generator for pulse operation, and relates to a single longitudinal mould HoYAP solid laser generator. The single longitudinal mould Ho:YAP solid laser generator solves the problem that the existing laser generator can not output single-frequency pulse 2.12-micrometer laser needed by a radar system. The single longitudinal mould Ho:YAP solid laser generator comprises a laser diode, an optical fiber laser, a Tm (Timer module), an Ho:YAP seed laser, a coupled system, an Ho:YAP pulse laser and an injection frequency locking servo system, wherein LD (Laser Diode) pump light emitted from the laser diode enters the Tm and the Ho:YAP seed laser and then enters the Ho:YAP pulse laser through the coupled system; the injection frequency locking servo system controls single-frequency lasers output from the Ho:YAP pulse laser. The single longitudinal mould Ho:YAP solid laser generator disclosed by the invention mainly provides an appropriate light source system for a coherent Doppler wind finding radar.

Description

technical field [0001] The invention relates to a single longitudinal mode HoYAP solid-state laser generator. Background technique [0002] Differential absorption lidar and coherent Doppler wind radar are powerful tools for real-time measurement of gas composition and atmospheric wind field. With high atmospheric transmission transmittance, 2μm seed injection single-frequency pulsed solid-state laser is the high performance of the above lidar Laser emission source. According to the atmospheric transmittance spectrum, the longer the wavelength of the 2 μm laser at the same power, the longer the transmission distance, which is more conducive to increasing the measurement distance of the lidar. Laser diode laser diode, 2μm solid-state laser device directly pumped by LD has the advantages of compact structure, stable performance and easy maintenance, etc., and is very suitable for practical applications. LD pumped Tm\Ho doped materials are an effective way to achieve 2μm outp...

Claims

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Application Information

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IPC IPC(8): H01S3/11H01S3/16
Inventor 戴通宇姚宝权段小明鞠有伦王月珠
Owner HARBIN INST OF TECH
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