Collection Of theses on high power laser and plasma physics, 2007, 5 (1): 227, Published Online: Sep. 18, 2008  

Design guidelines and characteristics of large flattened mode photonic crystal fibers

Author Affiliations
1 Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
2 China Electronics Technology Group Corporation No.23 Research Institute, Shanghai 200437, China
Abstract
We propose a kind of photonic crystal fiber with flat-top fundamental mode by introducing a depressed central dip into the core of the conventional index-guiding photonic crystal fiber. The design guidelines and characteristics of the large flattened mode photonic crystal fiber (LFM-PCF) are discussed in detail. By appropriate design, the effective area of the LFM-PCF can be increased by a factor of greater than 2 as compared with conventional index-guiding photonic crystal fiber with the same hole and pitch parameters. The improved effective area, single mode operation and flat-top fundamental mode output make LFM-PCF an ideal candidate to realize high power, high beam quality fiber amplifiers and lasers.

Chujun Zhao, Dianyuan Fan, Ping Zhou, Xiahui Zeng, Guanghui Chen, Wei Mu. Design guidelines and characteristics of large flattened mode photonic crystal fibers[J]. Collection Of theses on high power laser and plasma physics, 2007, 5(1): 227.

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