Single longitudinal mode optical parametric oscillator amplifier and its automatic locking method

Abstract

The invention provides a single-longitudinal-mode optical parametric oscillation amplifier which is extra narrow in bandwidth, ultra in frequency stabilization, tunable and efficient. An optical parameter laser is a solid laser pump injected with seed light, the oscillator stage is of an annular cavity structure design, continuous stable single-longitudinal-mode seed light is injected, and cavity length mode locking is automatically controlled through programs. The optical parameter laser can output single longitudinal mode lasers with the bandwidth smaller than 200MHz, the energy conversion efficiency is close to 40% to the maximum extent, and the output wave length can cover 430-3500nm (limited by the range of seed light wave length). Stabilization of the wave length of the laser and continuous scanning of wave lengths of the seed light within a limitation of non-mode-jump by controlling a self-feedback system through programs can be achieved.

Description

technical field [0001] The invention relates to an optical parametric laser, which belongs to the field of optoelectronic technology, in particular to an ultra-stable frequency tunable high-efficiency optical parametric oscillation amplifier with a single longitudinal mode and extremely narrow bandwidth. Background technique [0002] Since the world's first ruby ​​laser came out in 1960, laser technology has developed rapidly over the past 50 years, and has been combined with multiple disciplines to form multiple application technology fields, such as laser processing technology, laser detection and measurement technology, and laser spectrum analysis technology. , nonlinear optics, ultrafast lasers, laser chemistry, lidar, etc. In order to meet different needs, lasers are also developing in the direction of higher energy, wider coverage wavelength, narrower line width, and shorter pulse width. [0003] The design of lasers with different characteristics depends on the needs...

AI Technical Summary

Problems solved by technology

Moreover, the service life of the dye molecule is not long, it is highly toxic, and the large radiation emitted by the dye laser cannot be completely eliminated, so the all-solid-state OPO has been developed very quickly in the past two years, but there is no simultaneous simultaneous emission of the same as the present invention in the world. Optical parametric laser with single longitudinal mode, narrow bandwidth, ultra-stable frequency, and high conversion efficiency

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