Journal
OPTICAL FIBER TECHNOLOGY
Volume 26, Issue -, Pages 176-179Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.yofte.2015.09.002
Keywords
Photonic crystal fibers; Chalcogenide glass; Mechanical drilling
Funding
- National Natural Science Foundation of China [61435009, 61307060]
- Zhejiang Open Foundation of the Most Important Subjects [xkx11408]
- K. C. Wong Magna Fund in Ningbo University
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A mechanical drilling method for the preparation of photonic crystal fibers (PCFs) is presented in this paper. Several PCFs were fabricated with Ge20Sb15S65 chalcogenide glasses, which have high transparency in the mid-infrared (IR) range. The mechanical drilling method has been identified as a powerful tool to prepare fibers with a variety of structures and to increase the transmission of the obtained fibers. For a three-ring PCF, the near-field intensity distribution and the transmission loss were measured. It was found that most of the optical energy is contained in the core of the PCF. The profile of the near-field intensity image shows that the prepared PCF can work with a large mode area, which is important in high-power laser propagation and fiber amplifiers. (C) 2015 Elsevier Inc. All rights reserved.
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