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Proceedings Paper

GRIN rod lenses for optical fiber communication systems
Author(s): Nisha S. Biswas; Samir Kumar Sarkar; Amitabha Basuray
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Paper Abstract

Radially graded - refractive index (GRIN) rod lenses have a number of advantages over conventional lenses in manipulating and processing the optical signals in optical fiber communication systems(1). In order to have a device using GRIN rod lenses, design requirements are varied in nature. A system containing one or more than one radial grin lenses or a combination of radial and axial GRIN dements is designed. The next step is to devdop the required GRIN elements with desired material properties. Finally, the system is optimised as a compromise between the ideal and real available GRIN elements. Ion exchange technique is the most widely used method to devdop GRIN profile in glass due to its simple instrumentation and ease of control. We have devdoped a novel method to predict the GRIN profile for a given set of experimental conditions (2). This method helps us in devdoping different types of GRIN profiles in the glass rods with minimum number of experimentation. After the glass rods have gone through the process of ion exchange, refractive index profile are measured in a set - up devdoped by us (3,4). In this paper, we present the development of radial GRIN rod lenses with a diameter of 1 to 2 mm. These GRIN rod lenses can be used for coupling of laser light source to the optical fiber.

Paper Details

Date Published: 2 January 1998
PDF: 6 pages
Proc. SPIE 3211, International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96, (2 January 1998);
Show Author Affiliations
Nisha S. Biswas, Central Glass and Ceramic Research Institute (India)
Samir Kumar Sarkar, Univ. of Calcutta (India)
Amitabha Basuray, Univ. of Calcutta (India)

Published in SPIE Proceedings Vol. 3211:
International Conference on Fiber Optics and Photonics: Selected Papers from Photonics India '96
J. P. Raina; P. R. Vaya, Editor(s)

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