Real-time thermal response of laser diode under low frequency large signal current modulation

Authors

Efren Lumawag National Institute of Physics, University of the Philippines Diliman
Caesar Saloma National Institute of Physics, University of the Philippines Diliman
David J. Booth Department of Applied Physics, Victoria University of Technology, Australia

Abstract

We investigate and model the real-time thermal response of a single mode laser diode under low frequency (DC-1 Mhz) large amplitude current modulation in terms of the phase delay and the intensity reduction ofthe output signal measured from the exit slit of a monochromator. Intramode modulation effects are measured per half period of triangular wave modulation. Experimental data obtained therefore are not time-averaged values. A simple thermal model of the laser diode is proposed that can explain via a simple one-dimensional difiusion equation the characteristics of the experimental data.
Experimental data reveal that at about 1 Mhz the effect of temperature on wavelength modulation is very much reduced compared to that obtained at low frequency.

Downloads

Issue

1992: Proceedings of the International Conference on Physics and Technology in the 1990's

Article ID

ICPT-1992-LP-01

Section

Laser Physics and Spectroscopy

Published

1992-12-01

How to Cite

[1]

E Lumawag, C Saloma, and DJ Booth, Real-time thermal response of laser diode under low frequency large signal current modulation, Proceedings of the Samahang Pisika ng Pilipinas 10, ICPT-1992-LP-01 (1992). URL: https://proceedings.spp-online.org/article/view/ICPT-1992-LP-01.