Measurement of picosecond semiconductor laser pulse duration with internally generated second harmonic emission

1 October 1985

journal article
conference paper
Published by AIP Publishing in Applied Physics Letters

Vol. 47 (7) , 662-664
https://doi.org/10.1063/1.96050

Abstract

We demonstrate a simple practical technique for the measurement of the duration of picosecond semiconductor laser pulses using the internally generated second harmonic emission accompanying the laser output. The pulse duration is determined by the ratio of the conversion efficiencies of the second harmonic emission generated by the picosecond pulses and by the cw emission or other pulsed emission whose duration can be accurately measured. The pulse duration thus measured is in close agreement with that determined by the nonlinear intensity autocorrelation technique.

Keywords

This publication has 3 references indexed in Scilit:

Picosecond pulse generation from InGaAsP lasers at 1.25 and 1.3 µm by electrical pulse pumping
IEEE Journal of Quantum Electronics, 1981
Internal second harmonic generation in InGaAsP DH lasers
Optics Communications, 1980
Internal Second-Harmonic Generation in Gallium Arsenide Lasers
Journal of Applied Physics, 1964