Materials, Photonic Devices, and Sensors

Interesting effect of aspect ratio on Kerr nonlinear optical processes in subwavelength diameter single-mode trapezoidal index fiber using Marcuse-type spot-size formulations

[+] Author Affiliations
Arunangshu Sadhu

University of Calcutta, Department of Electronic Science, 92 A. P. C Road, Kolkata 700 009, India

Jnan Chandra Ghosh Polytechnic, Department of Science and Humanities, 7, Mayurbhanj Road, Kolkata 700023, India

Somenath Sarkar

University of Calcutta, Department of Electronic Science, 92 A. P. C Road, Kolkata 700 009, India

University of Calcutta, Centre for Research in Nanoscience and Nanotechnology, JD-2, Salt Lake, Kolkata 700098, India

Opt. Eng. 55(8), 087101 (Aug 08, 2016). doi:10.1117/1.OE.55.8.087101
History: Received May 18, 2016; Accepted July 20, 2016
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Abstract.  We investigate the Kerr nonlinear optical processes (NOPs) in the case of a single-mode trapezoidal index fiber based on recently formulated and appropriate Marcuse-type relations for spot size in terms of normalized frequency corresponding to such fiber having various aspect ratios. With the help of these relations, we have analyzed the maximum NOP in these fibers having prospective the merits of tight light confinement in the subwavelength diameter waveguiding region. The comparative investigation reveals that the aspect ratio having a value of 0.7 is the most promising candidate for maximum optical nonlinearity, constructional convenience, and less diffraction. The analysis should be attractive for system users as a ready reference.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Arunangshu Sadhu and Somenath Sarkar
"Interesting effect of aspect ratio on Kerr nonlinear optical processes in subwavelength diameter single-mode trapezoidal index fiber using Marcuse-type spot-size formulations", Opt. Eng. 55(8), 087101 (Aug 08, 2016). ; http://dx.doi.org/10.1117/1.OE.55.8.087101


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