A Wide Temperature Ring Laser Diode Pumped Laser and Its Design Method

A technology of laser diodes and pump lasers, applied in the field of wide-temperature ring laser diode pump lasers, can solve the problem of increasing the complexity, volume and weight of laser systems, unfavorable laser miniaturization, lightweight design, and reducing the reliability of laser system operation and anti-interference problems, to achieve the effect of compact structure, reduced volume and accurate results
CN104577688BInactive Publication Date: 2017-12-12LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
Publication Date
2017-12-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a wide-temperature ring laser diode pump laser, which includes a cooling heat sink, a ring bar array, a gain medium, and a Q-switching crystal. The cooling heat sink is a cuboid with a circular hole in the center, and the ring bar The bar array is fixedly connected to the surface of the circular hole of the cooling heat sink, and the annular bar array includes bars of at least two kinds of emission wavelengths, the intervals between adjacent bars are the same, and the intervals between adjacent bars of the same emission wavelength are The difference between the number of bars is ≤1, and the Q-switched crystal is bonded at one end of the gain medium. The emission spectrum distribution of the bars in the bar array at room temperature is based on the gain medium absorption spectrum, the temperature drift coefficient of the bar emission wavelength, and the bar emission The power temperature drift data is designed to ensure that within the temperature range of the laser operating environment, the bar array pump power absorbed by the gain medium is basically the same, thereby ensuring the stability of the laser output energy in a wide temperature environment.
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Description

technical field

[0001] The invention relates to the field of laser amplifiers, in particular to a wide-temperature ring laser diode-pumped laser and a design method thereof. Background technique

[0002] LD (Laser Diode) pumped solid-state laser has the advantages of small size, large output energy and long service life. The pump unit LD bar of the LD pump laser has the characteristics of changing the center wavelength and emission power of the pump light with the change of the working environment temperature: as the temperature increases, the center wavelength redshifts (becomes longer ), the emitted optical power decreases; on the contrary, as the temperature decreases, the central wavelength is blue-shifted (shorter), and the emitted optical power increases. Therefore, when the working environment temperature of the LD pump laser changes, the pump light energy absorbed by the laser gain medium will change, resulting in a change in the output energy of the laser. When the...

Claims

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