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Appl. Sci. 2017, 7(7), 695;

Design of 4 × 1 Power Beam Combiner Based on MultiCore Photonic Crystal Fiber

Faculty of Engineering, Holon Institute of Technology (HIT), Holon 5810201, Israel
Faculty of Engineering, Bar Ilan University, Ramat-Gan 52900, Israel
Author to whom correspondence should be addressed.
Academic Editor: Federico Pirzio
Received: 14 June 2017 / Revised: 2 July 2017 / Accepted: 3 July 2017 / Published: 5 July 2017
(This article belongs to the Special Issue Solid State Lasers Materials, Technologies and Applications)
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A novel concept of 4 × 1 power beam combiner based on multicore photonic crystal fiber is described. The light coupling obtained by integrating small air-holes in the multicore photonic crystal fiber (PCF) structure allows light coupling between coherent laser sources to the central core. The beam propagation method (BPM) and coupled mode theory were used for analyzing the proposed device. Simulation results show that four coherent fiber laser sources of 1 µm in a multicore PCF structure can be combined into one source after 2.6 mm light propagation, with a power efficiency of 99.6% and bandwidth of 220 nm. In addition, a higher 8 × 1 ratio combiner was demonstrated, based on the proposed device. Thus, the device can be very useful to combine beams. View Full-Text
Keywords: combiner; beam propagation method; photonic crystal fiber combiner; beam propagation method; photonic crystal fiber

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Malka, D.; Cohen, E.; Zalevsky, Z. Design of 4 × 1 Power Beam Combiner Based on MultiCore Photonic Crystal Fiber. Appl. Sci. 2017, 7, 695.

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