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Near-field measurements of a single-mode optical fiber and Er3 :Ti:LiNbO3 and Ti:LiNbO3 optical waveguides

G. C. VASILE1,* , N. N. PUŞCAŞ1

Affiliation

  1. University "Politehnica" Bucharest, Physics Department, Splaiul Independentei, 313, 060042, Bucharest, Romania

Abstract

In this paper we report some experimental results concerning the near-field measurements of optical fibers and Er 3 :Ti:LiNbO 3 and Ti:LiNbO 3 optical waveguides for a laser radiation having 1540 nm wavelength. These near-field measurements have been performed using an infrared vidicon camera with various functions for image processing, good resolution and stability. The objective of this paper is to evaluate some basic parameters, like: number of modes, dimensions of mode, the simetrie, penetration depth and the refractive-index profile which characterize the optical fibers and waveguides. These parameters are important from the point of view of their applications in telecommunication and sensing..

Keywords

Single-mode optical fiber, Er3+:Ti:LiNbO3 and Ti:LiNbO3 optical waveguides, Near-field measurements, Mode profile, Infrared vidicon camera.

Citation

G. C. VASILE, N. N. PUŞCAŞ, Near-field measurements of a single-mode optical fiber and Er3 :Ti:LiNbO3 and Ti:LiNbO3 optical waveguides, Optoelectronics and Advanced Materials - Rapid Communications, 5, 6, June 2011, pp.606-609 (2011).

Submitted at: May 16, 2011

Accepted at: June 9, 2011