Design of LD current drivers of pump-modules in fiber amplifiers

TAO Ning; JIANG Hai-ming; XIAO Jun; XIE Kang; WANG Ya-fei; LI Lei

doi:10.3969/j.issn.1001-3806.2010.06.027

In order to obtain high precision,high efficiency and low ripple current drivers in pump-modules of fiber amplifiers,a new laser diode (LD) driving circuit,composed of modules of driver and serial interface and so on,was designed. A switching power-converter current source based LM2676 was designed to drive LD at higher conversion efficiency.The circuit is capable of delivering up to 2.5A current to a laser load with precision of 0.1%,efficiency larger than 85% and current ripple of 0.5 mA because of a LC filter.Meanwhile long-distance reading and setting of the pump-module LD driver can be achieved by the design of serial device circuit control system.Results indicate that the circuit meets the theory design demands and can be applied in pump-modules of fiber amplifiers.

Design of LD current drivers of pump-modules in fiber amplifiers

Corresponding author: JIANG Hai-ming, jianghm@uestc.edu.cn;

1. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China

Received Date: 2009-12-02

Accepted Date: 2010-02-07

Available Online: 2010-11-25

Abstract: In order to obtain high precision,high efficiency and low ripple current drivers in pump-modules of fiber amplifiers,a new laser diode (LD) driving circuit,composed of modules of driver and serial interface and so on,was designed. A switching power-converter current source based LM2676 was designed to drive LD at higher conversion efficiency.The circuit is capable of delivering up to 2.5A current to a laser load with precision of 0.1%,efficiency larger than 85% and current ripple of 0.5 mA because of a LC filter.Meanwhile long-distance reading and setting of the pump-module LD driver can be achieved by the design of serial device circuit control system.Results indicate that the circuit meets the theory design demands and can be applied in pump-modules of fiber amplifiers.

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Reference (10)

[1]	PRESSMAN A I.Switching power supply design[M].2nd.Beijing:Publishing House of Electronics Industry,2005:1-469(in Chinese).
[2]	WU G Sh.The design and experiment study of multi-wavelength Raman pump module[D].Wuhan:Huazhong University of Science and Technology,2004:1-10(in Chinese).
[3]	LIN Y H,MAO H T,ZHANG J L,et al.The design of driving source for semiconductor laser[J].Laser Journal,2006,27(1):14-17(in Chinese).
[4]	TAN Zh Q,LONG X W.Design of driving circuits of semiconductor lasers for measurement of continuous-wave cavity ring-down technology[J].Laser Technology,2008,32(1):27-56(in Chinese).
[5]	WANG Y J,LIN Y Q,NIE Y B.Program for serial communication between PC and single chip microprocessor based on Visual C++6.0[J].Microcomputer Application Technology,2006(67):36-40(in Chinese).
[6]	FAN X G,SUN H Y,TANG W Y,et al.The design of a laser diode pulsed current source based on FPGA[J].Laser Journal,2007,28(2):19-20(in Chinese).
[7]	LIU R.High-accuracy current and temperature control for laser diode using MCS-51 microcontroller[J].Laser Technology,2004,28(3):225-227(in Chinese).
[8]	YUAN B J,XUE D J,LU X H.The design and implementation of a low-noise diode laser drive power[J].Optical Instruments,2007,27(5):69-71(in Chinese).
[9]	JIA W Ch,LI J J,LIU Z J,et al.Design of electric power control system by single chip for semiconductor laser[J].Modern Electronics Technique,2005,31(5):190-191(in Chinese).
[10]	HU X L,WANG X Zh,GAO G,et al.Design of constant current source in semiconductor laser reliability evaluation system[J].Modern Electronics Technique,2005,28(10):102-104(in Chinese).

Design of LD current drivers of pump-modules in fiber amplifiers

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