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

Authors

Efren Lumawag ⋅ PH National Institute of Physics, University of the Philippines Diliman
Caesar Saloma ⋅ PH National Institute of Physics, University of the Philippines Diliman
David J. Booth ⋅ AU 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.

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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.