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Large‐signal modulation response of 1.3 μm InGaAsP MQW lasers
Author(s) -
Torres Pereira J. M.
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1319
Subject(s) - signal (programming language) , amplitude , laser , modulation (music) , microwave , physics , optics , frequency modulation , saturation (graph theory) , nonlinear system , amplitude modulation , square wave , optoelectronics , telecommunications , bandwidth (computing) , mathematics , acoustics , engineering , computer science , quantum mechanics , combinatorics , voltage , programming language
The large‐signal modulation response of a 1.3 μm InGaAsP four‐well laser of the Fabry–Perot type is investigated when the input signal is either a sinusoidal or a square wave. The time evolution of the photon density is obtained by the numerical solution of the rate equations for several amplitude and frequency values of the input signal. The output photon density is very similar for the two input signal types, except at low frequencies. The normalized resonance frequency is seen to behave better when the input signal is sinusoidal and nonlinear gain saturation effects take place. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 375–378, 2001.