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Title: Phosphate single mode large mode area all-solid photonic crystal fiber with multi-watt output power

An index-depressed active core, single-mode phosphate all-solid large-mode-area photonic crystal fiber (PCF) is theoretically investigated using full-vectorial finite difference approach and experimentally realized. The PCF has a maximum output power of 5.4 W and 31% slope efficiency. Single-mode operation is realized through PCFs with core diameters of 30, 35, and 40 μm, respectively. The beam quality is not degraded even at maximum output power. Our simulations and experiments reveal that the laser performance is significantly affected by the center-to-center distance between the two nearest rods Λ, the rod diameter d, and their ratio d/Λ, implying that much attention should be given in employing optimal parameters to achieve excellent laser performance.
Authors:
; ; ; ;  [1] ;  [2] ;  [3] ;  [4]
  1. Key Laboratory of High Power Laser Materials, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)
  2. (China)
  3. Navigation Staff Room, Anhui Bengbu Petty Officer Academy of Navy, Bengbu 233000 (China)
  4. Institute of Optical Communication Materials, South China University of Technology, Guangzhou 510641 (China)
Publication Date:
OSTI Identifier:
22261603
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 13; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CRYSTALS; FIBERS; LASERS; PERFORMANCE; PHOSPHATES; SOLIDS