Journal of
Electrical and Electronics Engineering Research

  • Abbreviation: J. Electrical Electron. Eng. Res.
  • Language: English
  • ISSN: 1993-8225
  • DOI: 10.5897/JEEER
  • Start Year: 2009
  • Published Articles: 55

Full Length Research Paper

Design of a double clad optical fiber with particular consideration of leakage losses

Chakresh Kumar
  • Chakresh Kumar
  • Department of Electronics and Communication Engineering, Tezpur University, Napaam-784028, Sonitpur, Assam, India
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Girish Narah
  • Girish Narah
  • Department of Electronics and Communication Engineering, Tezpur University, Napaam-784028, Sonitpur, Assam, India
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Aroop Sharma
  • Aroop Sharma
  • Department of Electronics and Communication Engineering, Tezpur University, Napaam-784028, Sonitpur, Assam, India
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  •  Accepted: 18 September 2013
  •  Published: 30 October 2013

Abstract

In this paper we present a double clad optical fiber that consists of core, inner cladding and outer cladding. The refractive index of the core and the outer cladding are the same and the value of refractive index of the core is greater than the refractive index of inner cladding. The cutoff number Vc is calculated and plotted with respect to the ratio of the radius of inner cladding and the radius of the core. Finally the leakage losses are calculated considering both the bending effect and the non-bending effect. And a comparison is made between the double clad optical fiber and a single clad optical fiber.

 

Key words: Bessel’s function, cutoff value (Vc), cut off wavelength, loss co-efficient (2α)