Spectrum Property of 6.5W Multi-mode Output Laser Diode
LD is attracting widespread attention due to the advantages of small volume, simple structure, high efficiency, long life and high electricity-photo conversion efficiency. Especially, with the appearance of high-power Laser Diode, it has been an important research direction to use it as the lasers pumping source. However, due to the low coupling efficiency of LD laser and single-mode fiber, the application of LD is limited. With the appearance of the high-power multi-mode output laser diode and the consummation of double-clad fiber manufacture techniques, high-power fiber amplifier and fiber laser have been developed rapidly. We have developed an amplifier based on the hybrid Er-Yb double-clad fiber, which use the multi-mode output LD with nominal peak wavelength 975nm and nominal power 6.5W as the pumping source, and have obtained a gain over 30 dB. Because the pumping source LDs spectrum property has obvious influence on the fiber amplifier and laser, we have conducted the experimental study to the spectrum property of the 6.5W multi-mode output LD. The LDs threshold current is 0.3 A. With the rise of the LDs temperature and the increase of the injection drive current, the peak wavelength of the LDs output laser drift to the longer wavelength direction. LDs emission spectrum in different injection currents was obtained in the experiment. When the drive current increased from 0.3A to 5 A, the peak wavelength of the LDs output laser drifted from 964.2nm to 972.5 nm.
Lanlan Liu Chongqing Wu Guodong Lin Luyao Zhai
Key Laboratory of Luminescence and Optical Information,Ministry of Education Institute of Optical Information,School of Science,Beijing Jiaotong University Beijing 100044,China
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1309-1312
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）