Cart (Loading....) | Create Account
Close category search window
 

Laser performance and spectroscopic analysis of optically written channel waveguides in neodymium-doped gallium lanthanum sulphide glass

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Mairaj, A.K. ; Optoelectron. Res. Centre, Southampton Univ., UK ; Chardon, Alain M. ; Shepherd, David P. ; Hewak, D.W.

We present a spectroscopic analysis and laser characterization of optically written waveguides in neodymium-doped gallium lanthanum sulphide (Nd3+-Ga:La:S) chalcogenide glass. Uniform channel waveguides were fabricated in Nd3+-Ga:La:S by exposure to radiation from a focused UV-laser beam (λ=244 nm), producing a refractive index change ▵n≈+10-3. The observed laser performance and fluorescence decay were in good agreement with values calculated from a spectroscopic analysis of 85 μs for the 4F32/ lifetime and 5.9×10-20 cm2 for the emission cross section at 1075 nm. Low threshold laser operation with emission at 1075 nm and a slope efficiency of 17% is demonstrated. The active device is spatially single mode and exhibits up to 8.6 mW of output power and propagation losses of <0.5 dBcm-1. Waveguide fabrication, photoinduced effects, and optical characterization in terms of spectroscopy, laser performance, and device attenuation are discussed.

Published in:

Selected Topics in Quantum Electronics, IEEE Journal of  (Volume:8 ,  Issue: 6 )

Date of Publication:

Nov/Dec 2002

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.