Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Analysis of thermal limitations in high-speed microcavity saturable absorber all-optical switching gates

Massoubre, David and Oudar, J.L. and O'Hare, A. and Gay, M. and Bramerie, L. and Simon, J.-C. and Shen, A. and Decobert, J. (2006) Analysis of thermal limitations in high-speed microcavity saturable absorber all-optical switching gates. Journal of Lightwave Technology, 24 (9). pp. 3400-3408. ISSN 0733-8724

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The limitations owing to device heating and thermo-optic effects in high-speed quantum-well microcavity saturable absorber devices are investigated both theoretically and experimentally. A simplified theoretical description of the device electronic, thermal, and optical properties is developed and applied to the modeling of the device switching characteristics for reamplification + reshaping step (2R) all-optical regeneration. These predictions are compared to nonlinear optical measurements performed with switching pulses of fixed duration and variable repetition rate on two devices with significantly different thermal properties. It is shown that proper optimization of the device thermal properties is crucial to avoid the degradation of device performance at high bit rate. It is also shown that the negative effects of optically induced heating on the switching contrast may be compensated to some extent by operating the device on the long wavelength side of the microcavity resonance