8 X 8 holographic single-mode fiber switch based on electrically addressed nematic liquid crystal deflectors

Nicole Wolffer; Bruno Vinouze; Roger Lever; Philippe Gravey

doi:10.1117/12.386849

24 May 2000 8 X 8 holographic single-mode fiber switch based on electrically addressed nematic liquid crystal deflectors

Nicole Wolffer, Bruno Vinouze, Roger Lever, Philippe Gravey

Author Affiliations +

Proceedings Volume 4089, Optics in Computing 2000; (2000) https://doi.org/10.1117/12.386849
Event: 2000 International Topical Meeting on Optics in Computing (OC2000), 2000, Quebec City, Canada

Abstract

We present the design and the system characterization of a 8 X 8 free-space optical switching matrix based on the cascade on two 1D deflectors. These devices are based on phase ramps generated into parallel aligned nematic liquid crystal cells. Each cell is divided into 8 arrays with 309 2.5 micrometers -wide electrodes. Each of these arrays is addressed by Tape Automatic Bounded circuits which are reported onto the transparent Indium Tin Oxide on glass substrate. A specific software allows to determine the supply voltages required to establish a given set of interconnections. The two liquid crystal cells, which have been optimized to operate in the 1.55 micrometers window, have an efficiency higher than 70% for deflection angles up to 2.5 degree(s). These cells have been associated with single mode fiber and diffractive lens arrays into a rack-mounted demonstrator, which include the required optics to achieve polarization diversity. The average insertion loss is 9.0 dB with a maximum of 12.5 dB; the polarization dependent loss is lower than 1 dB, and worst case isolation is about 30 dB.

Citation Download Citation

Nicole Wolffer, Bruno Vinouze, Roger Lever, and Philippe Gravey "8 X 8 holographic single-mode fiber switch based on electrically addressed nematic liquid crystal deflectors", Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); https://doi.org/10.1117/12.386849

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