Fused side-coupler for double-clad fiber lasers with CO2 laser

SHAO Tong; YAN Ping; ZHANG Hai-tao; GONG Ma-li

doi:10.3969/j.issn.1001-3806.2010.03.023

The purpose of coupling technology is to couple high-power laser from laser diode to double-clad fiber cladding to get the high pumped power.In order to simplify the fiber angle-polished side-coupling technology,a novel method using CO2 laser to make fused side-coupler for double-clad fiber was introduced.The experimental equipment and making process for such fused side-couplers were introduced.The side coupler,from 105μm/125μm muhimode fiber to 125μm double-clad fiber,was made with a coupling efficiency of 82% by means of this method.These results show that this kind of fused side-coupler can be used in high-power side-pumped double-clad fiber lasers practically.

Fused side-coupler for double-clad fiber lasers with CO2 laser

Corresponding author: ZHANG Hai-tao, zhanghaitao@mail.tsinghua.Edu.cn;

1. Center for Photonics and Electronics, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China

Received Date: 2009-05-18

Accepted Date: 2009-05-25

Available Online: 2010-05-25

Abstract: The purpose of coupling technology is to couple high-power laser from laser diode to double-clad fiber cladding to get the high pumped power.In order to simplify the fiber angle-polished side-coupling technology,a novel method using CO2 laser to make fused side-coupler for double-clad fiber was introduced.The experimental equipment and making process for such fused side-couplers were introduced.The side coupler,from 105μm/125μm muhimode fiber to 125μm double-clad fiber,was made with a coupling efficiency of 82% by means of this method.These results show that this kind of fused side-coupler can be used in high-power side-pumped double-clad fiber lasers practically.

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Reference (10)

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Fused side-coupler for double-clad fiber lasers with CO2 laser

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