Outer control ultraviolet laser power stabilizing system

An ultraviolet laser and power stable technology, applied in the laser field, can solve the problems of insufficiently rigorous processing of optical path details, cumbersome electrical signal processing, and inaccurate measurement, so as to enhance readability, high-precision and stable optical power, and improve stable accuracy Effect

Inactive Publication Date: 2014-08-06
XIDIAN UNIV +1
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Problems solved by technology

However, the common shortcomings are that it is stable for 632.8nm visible laser, and it is not suitable for ultraviolet laser; the details of the optical path are not rigorous enough. When the laser is transmitted in space, it is often caused by defects on the optical components or air Scatteri...

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  • Outer control ultraviolet laser power stabilizing system
  • Outer control ultraviolet laser power stabilizing system

Examples

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] refer to figure 1 , the ultraviolet laser power stabilization system of the present invention comprises ultraviolet laser light source 1, ultraviolet environment control room 2, polarizer 21, electro-optical modulator 22, 1 / 4 wave plate 23, analyzer 24, spatial filter 25, sampling device 26, optical chopper 3, optical filter 4, photoelectric preamplifier module 5, feedback control module 6, electro-optical modulation driver 7 and laser light power detector 8. in:

[0039] The ultraviolet laser light source 1 includes an all-solid-state laser 11 , an all-solid-state laser mirror 12 , a calibration laser 13 , a calibration laser mirror 14 and an aperture 15 .

[0040] The power of the all-solid-state laser 11 used in this example is 30 milliwatts, which emits ultraviolet laser light with a wavelength of 266 nm, and the optical power fluctuation range o...

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Abstract

The invention discloses an outer control ultraviolet laser power stabilizing system, mainly for solving the problem that the existing laser power stabilizing system is low in stability. The outer control ultraviolet laser power stabilizing system comprises an ultraviolet laser light source system (1), an ultraviolet environment control room (2), an electrooptical modulator (22), a sampler (26), an optical chopper (3), an optical filter (4), a photoelectric preamplifying module (5), a feedback control module (6), an electrooptical modulation driver (7) and a laser power detector (8), wherein the ultraviolet laser light source system outputs ultraviolet laser power of which needs to be stabilized, the ultraviolet laser the power of which needs to be stabilized passes through the electrooptical modulator (22), the ampler (26), the optical chopper (3) and the optical filter (4) and vertically reaches an photoelectric detector to generate electric signals; the electric signals generate feedback signals through the feedback control module, to control the electrooptical modulation driver to adjust the electrooptical modulator to stabilize the ultraviolet laser power. The outer control ultraviolet laser power stabilizing system is high in stability, and is suitable for stabilizing the ultraviolet laser power with wave bands of 250-400nm.

Description

technical field [0001] The invention belongs to the field of laser technology, and specifically relates to a photoelectric system for realizing stable control of ultraviolet laser power by using a signal feedback mechanism, and is mainly used for realizing high-precision stabilization of the output optical power of ultraviolet lasers. technical background [0002] Ultraviolet lasers are widely used in scientific research, industry, military, medical and many other fields, and the stability of ultraviolet laser power is a key factor in these applications. In actual use, when the ultraviolet laser is affected by factors such as power supply current fluctuations, cavity mirrors, laser mode hopping, and environmental temperature changes, it will cause fluctuations in the output power of the laser, that is, the instability of the output power of the laser. No matter what the reason is, the laser power change is reflected in the output beam as a synthetic effect, that is, the irre...

Claims

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Application Information

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IPC IPC(8): H01S3/13
Inventor 邵晓鹏王琳丁钟奎应承平王恒飞吴斌史学舜刘红元刘玉龙陈坤峰李国超王洪超
Owner XIDIAN UNIV
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