Lasers, Fiber Optics, and Communications

Investigation of coupling of a laser diode to photonic crystal fiber via hyperbolic microlens on the fiber tip by ABCD matrix formalism

[+] Author Affiliations
Anup Karak, Somenath Sarkar

University of Calcutta, Department of Electronic Science, 92, A.P.C. Road, Kolkata 700009, India

University of Calcutta, Centre for Research in Nanoscience and Nanotechnology, Kolkata 700098, India

Dipankar Kundu

University of Calcutta, Department of Electronic Science, 92, A.P.C. Road, Kolkata 700009, India

University of Calcutta, Centre for Research in Nanoscience and Nanotechnology, Kolkata 700098, India

St. Thomas’ College of Engineering and Technology, Department of Electronics and Communication Engineering, 4, D.H. Road, Kolkata 700023, India

Sumanta Mukhopadhyay

University of Calcutta, Department of Electronic Science, 92, A.P.C. Road, Kolkata 700009, India

St. Paul’s C. M. College, Department of Physics, 33/1, Raja Rammohan Roy Sarani, Kolkata 700009, India

Opt. Eng. 54(8), 086102 (Aug 18, 2015). doi:10.1117/1.OE.54.8.086102
History: Received June 1, 2015; Accepted July 21, 2015
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Abstract.  A simple and accurate theoretical investigation is presented, based on a novel, effective, and straightforward ABCD matrix technique, in relation to estimation of optimum coupling efficiency between the laser diode and the photonic crystal fiber (PCF) with a hyperbolic microlens (HML) on its tip. By tailoring different parameters, such as the air-filling factor and lattice constant of the PCF, the criteria for achieving maximum coupling are predicted and reported for two different light wavelengths of practical interest. It is observed that such fiber parameters play a crucial role in predicting the optimum focal length of HML for a particular wavelength. The formulation should find application in the design of HML, for achieving a long working distance between the laser source facet and the fiber tip.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Anup Karak ; Dipankar Kundu ; Sumanta Mukhopadhyay and Somenath Sarkar
"Investigation of coupling of a laser diode to photonic crystal fiber via hyperbolic microlens on the fiber tip by ABCD matrix formalism", Opt. Eng. 54(8), 086102 (Aug 18, 2015). ; http://dx.doi.org/10.1117/1.OE.54.8.086102


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