Device capable of improving linear polarization laser output of solid laser
A laser output device and linear polarization technology, which is applied to lasers, laser components, phonon exciters, etc., can solve problems affecting the linear polarization output power of lasers, single linear polarization characteristics of lasers, and thermal depolarization of laser media, etc., to achieve Effect of Improving Linear Polarization Output Efficiency
Inactive Publication Date: 2014-02-19
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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[0003] The invention aims to improve the serious thermal depolarization of the laser medium in the existing high-power solid-state lasers, so that the output laser cannot exhibit a single linear polarization characteristic, which seriously affects the linear polarization output power of the laser.
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[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0015] figure 1 A device for increasing the linearly polarized laser output of a solid-state laser proposed in the first embodiment of the present invention is shown. Such as figure 1 As shown, the device includes: a total reflection mirror 1 , a semiconductor laser linear array side-pumped laser module 2 , a polarizer 3 , a total reflection mirror 4 and a power meter 5 .
[0016] Wherein, the total reflection mirror 1 and the polarizing device 3 are located on both sides of the semiconductor laser line side-pumped laser module 2, and the semiconductor laser line-array side-pumped laser module 2 is used to emit laser light, and the surface of the polarizing device 3 is coated with a polarization splitting film , and its...
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The invention discloses a device capable of improving linear polarization laser output of a solid laser. The device comprises a first mirror, a semiconductor laser linear array side pump laser module, a polarization device, a second mirror and a power meter. Laser emitted by the semiconductor laser linear array side pump laser module can form oscillation between the first mirror, the semiconductor laser linear array side pump laser module, the polarization device and the second mirror, and the laser passes through the polarization device to be in a p polarization state or an s polarization state to be received by the power meter. The device can enable the other part of separated light of the linear polarization output light to return to a resonant cavity again to be fully utilized, so that the final linear polarization output light power is greatly improved. Furthermore, the device can flexibly adjust the linear polarization output direction of the solid laser to enable the linear polarization light output by the solid laser to be in the s polarization state and the p polarization state. In addition, the solid laser is more flexible to use and wider in application range.
Description
technical field [0001] The invention relates to the technical field of semiconductor lasers, in particular to a device for improving the linearly polarized laser output of a solid-state laser by combining a polarization device with an L-shaped resonant cavity. Background technique [0002] With the development of laser technology, people have higher and higher requirements for the output power of lasers. However, as the pumping power of the semiconductor laser increases, the thermal effect of the laser medium becomes more and more obvious, causing thermally induced birefringence and other phenomena. For lasers that require linearly polarized beams to operate, such as electro-optic Q-switching, frequency conversion, and external beam modulation, the thermal depolarization effect caused by thermally induced birefringence will increase significantly, which makes the laser output directly from the laser unable to present a single line. Polarization properties. In this case, th...
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IPC IPC(8): H01S3/16H01S3/10G02B27/28
Inventor 王丽荣林学春王宝华郭渭荣王祥鹏陈凯曲研
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI