Characterization of a three-spot lens for an optical fiber multiple connection

Vera Russo; Gemma De Angelis; Antonio Scaglione; V. Sfameli

doi:10.1117/12.246683

23 August 1996 Characterization of a three-spot lens for an optical fiber multiple connection

Vera Russo, Gemma De Angelis, Antonio Scaglione, V. Sfameli

Proceedings Volume 2774, Design and Engineering of Optical Systems; (1996) https://doi.org/10.1117/12.246683
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

A monolithic optical component able to focus a medium or high power laser beam in three different points on the same plane has been designed and constructed. The three-spot lens is constituted by an asymmetrical refractive lens. A face has been conventionally rounded in a convex shape, while the other face has a prismatic shape in order to split the laser beam in three parts. The optical characteristics of the three-spot lens (focal length, focal spot sizes, mutual distance between spots an spherical aberration) were evaluated in first approximation by extending the matrix optics method to misaligned systems. An experimental characterization of the lens has substantially confirmed the results of the theoretical analysis and it has shown that the lens can be conveniently used to design a device for simultaneous coupling of a number of large-diameter optical fibers to a medium or high power laser source (laser- multifiber coupler) or to a single launching fiber (fiber- multifiber coupler). The laser power can be uniformly coupled into the receiving fibers; it was verified that an asymmetrical power distribution between the fibers can be obtained as well.

Citation Download Citation

Vera Russo, Gemma De Angelis, Antonio Scaglione, and V. Sfameli "Characterization of a three-spot lens for an optical fiber multiple connection", Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); https://doi.org/10.1117/12.246683

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available