Multi-output aging power supply for pulse lasers

A pulsed laser and multi-channel output technology, which is applied to lasers, laser components, semiconductor lasers, etc., can solve the problems of long cycle and low efficiency, and achieve the effect of improving aging efficiency and shortening the aging cycle

Inactive Publication Date: 2013-01-16
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

[0005] In order to solve the problems existing in the prior art, the present invention provides a multi-output pulse laser aging power supply, which can well overcome the shortcomings of low efficiency and long cycle of the existing aging method, and can be used for multiple pulse lasers at the same time Aging, greatly improving the efficiency of pulsed laser aging

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  • Multi-output aging power supply for pulse lasers
  • Multi-output aging power supply for pulse lasers

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0013] Such as figure 2 As shown, the multi-output pulse laser aging power supply includes: microcontroller 1, digital-to-analog converter 2, analog switch 3, voltage-controlled current source 4, DC stabilized power supply 5, laser 6, PMOS transistor 7 and decoder 8.

[0014] During the work of the present invention, the single-chip microcomputer 1 provides the control voltage to the voltage-controlled current source 4 to set the operating current through the digital-to-analog converter 2; the single-chip microcomputer 1 controls the pulse width of the pulse current by controlling the on-off of the analog switch 3; The coder 8 controls the on-off of the PMOS transistor 7, and only one PMOS transistor 7 is turned on at any time, and only the laser 6 connected in series with it works at this time; when multiple PMOS transistors 7 are turned on ...

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Abstract

The invention discloses a multi-output aging power supply for pulse lasers and relates to the field of aging power supplies of semiconductor lasers. The power supply can well overcome the defects of low efficiency and long period in the conventional aging method, can be used for the aging of a plurality of pulse lasers, and greatly improves the aging efficiency of the pulse lasers. The aging power supply comprises a plurality of high-power switches and a decoder, wherein the decoder is connected with a singlechip and the high-power switches respectively; the lasers are connected with the high-power switches; and the multi-way high-power switches are connected with the lasers in parallel and then connected with a voltage-controlled current source and a direct current regulated power supply. According to the characteristic of low duty ratio of the pulse lasers during aging, the multi-output aging power supply for the pulse lasers has the function of time-sharing multi-output function, can drive the plurality of lasers in a time-sharing way to implement the aging of the lasers at the same time, and can further shorten the aging period greatly and improve the aging efficiency.

Description

technical field [0001] The invention relates to the field of semiconductor laser aging power supply, in particular to a multi-channel output pulse laser aging power supply. Background technique [0002] The aging method of pulsed semiconductor lasers is generally as follows: under a certain temperature condition, the laser is driven with a repetitive pulse current of a certain amplitude and duty cycle, and the decrease of the output optical power of the laser after aging with a certain number of pulses is investigated. [0003] At present, there is no dedicated multi-output pulse laser aging power supply on the market, while the ordinary pulse laser power supply only has 1~2 output channels, which is time-consuming and labor-intensive for laser aging, and the efficiency is extremely low. For example, when the aging condition is 100,000 pulses, pulse width 1ms, and period 1s, the aging period of each device is about 28 hours, and the aging period of batch devices will be very...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/042
Inventor 曹军胜彭航宇王彪尹红贺王立军
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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