"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Dy3+-doped Ge-In-S-CsI chalcohalide glasses for 1.3 µm optical fiber amplifier

LEI FENG1, HAITAO GUO2, GUANGMING TAO1, MIN LU2, WEI WEI1,* , BO PENG1,2

Affiliation

  1. Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, P. R. China
  2. State Key Laboratory of Transient Optics & Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS) Xi’an 710119, P. R. China

Abstract

Dy3+-doped Ge-In-S-CsI chalcohalide glasses were prepared by the well-established melt-quenching technique, and the thermal stabilities, absorption spectra, densities, refractive indics, fluorescence spectra and lifetimes were investigated. The intensity parameters Wt (t=2, 4, 6), transition probabilities, exited state lifetimes and the branching ratios were calculated by using the Judd-Ofelt theory. The radiative quantum efficiencies and emission cross sections of 1.3µm emission were then confirmed. The 64GeS2·16In2S3·20CsI glass with good thermal stability (the glass transition temperatures Tg is 360°C and the difference between the onset crystallization temperature Tx and Tg is 149°C), long fluorescence lifetime (τmea= 154µs) and high radiative quantum efficiency (η=20.9%) is considered to be an attractive host material for 1.3 µm optical fiber amplifiers..

Keywords

Chalcohalide glass, Optical property, Lifetime, Optical fiber amplifier.

Submitted at: April 9, 2009
Accepted at: July 23, 2009

Citation

LEI FENG, HAITAO GUO, GUANGMING TAO, MIN LU, WEI WEI, BO PENG, Dy3+-doped Ge-In-S-CsI chalcohalide glasses for 1.3 µm optical fiber amplifier, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 7, pp. 924-928 (2009)