CUED Publications database

First demonstration of two photon absorption in a semiconductor waveguide pumped by a diode laser

Tsang, HK and Vasil'ev, PP and White, IH and Penty, RV and Aitchison, JS (1993) First demonstration of two photon absorption in a semiconductor waveguide pumped by a diode laser. Electronics Letters, 29. pp. 1660-1661. ISSN 0013-5194

Full text not available from this repository.

Abstract

For the first time, lasers have been used to induce a fast all-optical nonresonant nonlinearity at wavelengths well beyond the band edge in a GaAs/GaAlAs multiquantum well waveguide. Using a Q-switched diode laser, which gave optical pulses of 3.5 ps duration and 7 W peak power, an intensity-dependent transmission was recorded that was consistent with the presence of two photon absorption in the waveguide. The measured two photon absorption coefficient was 11 ± 2cm/GW.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:10
Last Modified: 27 Nov 2014 19:24
DOI: