Mid-infrared laser emission from Cr:ZnS channel waveguide fabricated by femtosecond laser helical writing

The operation of a mid-infrared laser at 2244 nm in a Cr:ZnS polycrystalline channel waveguide fabricated using direct femtosecond laser writing with a helical movement technique is demonstrated. A maximum power output of 78 mW and an optical-to-optical slope efficiency of 8.6% are achieved. The com...

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Bibliographic Details
Published in:	Scientific reports Vol. 5; no. 1; p. 18365
Main Authors:	Peng, Ya-Pei, Zou, Xiao, Bai, Zhengyuan, Leng, Yuxin, Jiang, Benxue, Jiang, Xiongwei, Zhang, Long
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 22-12-2015 Nature Publishing Group
Subjects:	140/125 639/301/1019/1020/1094 639/624/1020/1094 639/624/399 Humanities and Social Sciences multidisciplinary Science
Online Access:	Get full text
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Summary:	The operation of a mid-infrared laser at 2244 nm in a Cr:ZnS polycrystalline channel waveguide fabricated using direct femtosecond laser writing with a helical movement technique is demonstrated. A maximum power output of 78 mW and an optical-to-optical slope efficiency of 8.6% are achieved. The compact waveguide structure with 2 mm length was obtained through direct femtosecond laser writing, which was moved on a helical trajectory along the laser medium axis and parallel to the writing direction.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2045-2322 2045-2322
DOI:	10.1038/srep18365