Eur. Phys. J. D 58, 175-179 (2010)
https://doi.org/10.1140/epjd/e2010-00063-2

Phasor plots in optical injection experiments

¹ Tyndall National Institute, Lee Maltings, Cork, Ireland
² Department of Applied Physics and Instrumentation, Cork Institute of Technology, Cork, Ireland

Corresponding author: bryan.kelleher@tyndall.ie

Received: 23 December 2009
Revised: 15 February 2010
Published online: 16 March 2010

Abstract

An interferometric method for obtaining phasor plots of an optically injected laser is described. The technique is applied to a quantum well device and corresponding numerical plots are obtained for comparison yielding excellent quantitative agreement. An extension of the technique to obtain 3-D plots by incorporating a measurement of the gain is also described and applied to an injected quantum dot laser.