Distributed feedback injection amplification semiconductor laser

A distributed feedback and semiconductor technology, which is applied in the direction of semiconductor lasers, lasers, laser components, etc., can solve problems affecting the stability of amplified lasers, and achieve the effects of ensuring power stability, beam quality, and convenient operation

Inactive Publication Date: 2008-08-06
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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  • Description
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Problems solved by technology

However, this product is quite strict on the current control accuracy of the tapered laser amplifier, and the fluctuation of the current directly affects the stability of the amplified laser.

Method used

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  • Distributed feedback injection amplification semiconductor laser
  • Distributed feedback injection amplification semiconductor laser

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Embodiment Construction

[0029] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0030] According to Figure 1, it can be seen that the tapered amplified semiconductor laser consists of six main lasers A, the first optical isolator B, the tapered laser amplifier C, the second optical isolator D, the weak light detection laser power stabilization system E and the laser shaping system F Partial composition. The main laser A includes the current temperature control interface 2, the main laser base 4, the main laser adjustment seat 5, the thermoelectric cooling package module 6, the distributed feedback semiconductor laser tube 7, the main laser collimation lens adjustment seat 8, and the main laser collimation lens 9 . The first optical isolator B includes an optical isolator base 10 , a Glan Taylor prism 12 , an optical rotator 11 and a Glan Taylor prism 13 . The conical laser amplifier C includes a conical laser amplifier base 14, a conical laser ...

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Abstract

The invention discloses a distributed feedback injection amplifying semiconductor laser, consisting of a main laser, a first light isolator, a taper laser amplifier, a second light isolator, a tiny light exploring laser power stabilization system and a laser shaping system, wherein, the main laser adopts a distributed feedback semiconductor laser tube, the collimated laser beam is injected into a taper laser amplifying chip passing through the first light isolator, the amplified laser adopts the beam splitting technique passing through the second light isolator, an electrophotonic detector detects the fluctuation of power of the amplified laser, the error signal is sent to a current control interface of the taper laser amplifier through a feedback circuit, the power stability of the laser is outputted after the error signal is amplified by a reverse feedback mechanism, the light outputs the collimated Gaussian beam through the laser shaping system. The distributed feedback injection amplifying semiconductor laser has compact structure, convenient adjustment, wide and narrow laser rays, high power, good stability and strong practicability.

Description

technical field [0001] The present invention relates to a semiconductor laser, more specifically to a distributed feedback injection amplification semiconductor laser, the present invention [0002] The invention is applicable to the fields of laser cooling, atom trapping, laser spectroscopy, nonlinear optics, etc. Background technique [0003] In 1917, Einstein proposed the concept of stimulated radiation. In the 1950s, Soviet scientists Basov and Prokhorov published the paper "Realization of Three-level Particle Population Inversion and Suggestions for Semiconductor Lasers", which provided the basis for the development of lasers. Appears to provide a theoretical basis. In 1960, Melo of the Hughes Laboratory in California developed the world's first ruby ​​laser. He used ruby ​​crystals as the luminescent material and pulsed xenon lamps with high luminous density as the laser pump source. After years of hard work Obtained the first laser beam in history with a wavelength ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/00H01S5/12H01S5/026H01S5/06
Inventor 李润兵陈立熊宗元王谨詹明生
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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