Share Email Print
cover

Optical Engineering

Simple method for measuring the cleave angle of optical fiber facets by using the nodal points of a cylindrical lens
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

A simple experimental setup for measuring the cleave angle of optical fiber facets by using a plano-convex cylindrical lens is presented. In this method, a laser beam is coupled to the perpendicularly cleaved input fiber facet and propagates up to the output end, where the fiber facet is cleaved at a certain angle. The divergent beam emerges from the output end fiber at an angle determined by the cleave angle and impinges at the cylindrical lens through a very narrow slit. The slit is placed in contact with the vertex of the convex side of the cylindrical lens and parallel to its axis. The slit-lens assembly is moved perpendicular to the optical axis of the lens so that the marginal rays of the incident beam pass through the slit. Using the output angles from marginal rays of the refracted beam by the cylindrical lens, it is possible to calculate the output angle of the principal ray and, by measuring this angle, the cleave angle can be estimated.

Paper Details

Date Published: 18 May 2012
PDF: 6 pages
Opt. Eng. 51(5) 059702 doi: 10.1117/1.OE.51.5.059702
Published in: Optical Engineering Volume 51, Issue 5
Show Author Affiliations
Victor M. Durán Ramírez, Univ. de Guadalajara (Mexico)
Alejandro Martinez-Rios, Centro de Investigaciones en Óptica, A.C. (Mexico)
Guillermo Salceda-Delgado, Centro de Investigaciones en Óptica, A.C. (Mexico)
Ismael Torres-Gomez, Centro de Investigaciones en Óptica, A.C. (Mexico)


© SPIE. Terms of Use
Back to Top