University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Investigation of 1.3-mu m GaInNAs vertical-cavity surface-emitting lasers (VCSELs) using temperature, high-pressure, and modelling techniques

Knowles, G, Fehse, R, Tomic, S, Sweeney, SJ, Sale, TE, Adams, AR, O'Reilly, P, Steinle, G and Riechert, H (2003) Investigation of 1.3-mu m GaInNAs vertical-cavity surface-emitting lasers (VCSELs) using temperature, high-pressure, and modelling techniques IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 9 (5). 1202 - 1208. ISSN 1077-260X

[img]
Preview
PDF
fulltext.pdf

Download (267Kb)

Abstract

We have investigated the temperature and pressure dependence of the threshold current (I-th) of 1.3 mum emitting GaInNAs vertical-cavity surface-emitting lasers (VCSELs) and the equivalent edge-emitting laser (EEL) devices employing the same active region. Our measurements show that the VCSEL devices have the peak of the gain spectrum on the high-energy side of the cavity mode energy and hence operate over a wide temperature range. They show particularly promising I-th temperature insensitivity in the 250-350 K range. We have then used a theoretical model based on a 10-band k.P Hamiltonian and experimentally determined recombination coefficients from EELs to calculate the pressure and temperature dependency of I-th. The results show good agreement between the model and the experimental data, supporting both the validity of the model and the recombination rate parameters. We also show that for both device types, the super-exponential temperature dependency of I-th at 350 K and above is due largely to Auger recombination.

Item Type: Article
Uncontrolled Keywords: Science & Technology, Technology, Physical Sciences, Engineering, Electrical & Electronic, Optics, Physics, Applied, Engineering, Physics, Auger, GaInNAs, model, pressure, temperature, vertical-cavity surface-emitting laser (VCSEL), QUANTUM-WELL LASERS, CONTINUOUS-WAVE OPERATION, THRESHOLD-CURRENT-DENSITY, ROOM-TEMPERATURE, RECOMBINATION PROCESSES, CW OPERATION, GAAS
Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Photonics
Depositing User: Mr Adam Field
Date Deposited: 27 May 2010 14:08
Last Modified: 23 Sep 2013 18:27
URI: http://epubs.surrey.ac.uk/id/eprint/326

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year


Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800