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清华大学 [1]
长春光学精密机械与物... [1]
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会议论文 [2]
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2010 [2]
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Effect of La/sub 2/O/sub 3/ and CeO/sub 2/ on Nb/sub 2/O/sub 5/ doped TiO/sub 2/ ceramic varistors
会议论文
Key Engineering Materials, 3rd International Conference on High-Performance Ceramics (CICC-3), Shenzhen, China, INSPEC
Jia Mi
;
Zilong Tang
;
Shaohua Luo
;
Zhongtai Zhang
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浏览/下载:4/0
The novel facet coating technology for 808nm semiconductor laser (EI CONFERENCE)
会议论文
2010 Academic Symposium on Optoelectronics and Microelectronics Technology and 10th Chinese-Russian Symposium on Laser Physics and Laser Technology, RCSLPLT/ASOT 2010, July 28, 2010 - August 1, 2010, Harbin, China
Li Z.
;
Qin L.
;
Liu Y.
;
Wang L.
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提交时间:2013/03/25
A novel facet coating technology is presented by studying catastrophic optical mirror damage mechanism of semiconductor laser. In this technology
semiconductor laser are cleaved in the air
and the surface oxide layer is removed with a low energy ion source
flowed immediately by coating the facet with thin ZnSe layer of 20 nm. The function of this layer is to protect semiconductor laser facet
and prevent impurity particles diffusing to the facet. Finally the facet is coated with oxidative optical film. The test results show that the output power of the semiconductor laser with the ZnSe coated layer is 13% higher than that of the Si coated layer
and 47% higher than that of the oxide coated film. The device coated oxide film is damaged when current is 4.5 A
and the device coated with Si layer is damaged when current is 5.5 A
the final failed device is coated with ZnSe layer. In conclusion
the method of coating ZnSe layer on the semiconductor laser facet can prevent effectively the catastrophic optical mirror damage
and increase the output power of semiconductor lasers. 2010 IEEE.
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