On the nonlinear theory of Fabry–Perot semiconductor lasers

Abstract

Fundamentals of the nonlinear theory of Fabry-Perot semiconductor lasers have been developed, an integral part of which is natural linewidth theory. The formula for gain depending on the energy flux specifies the basic nonlinear effect in a laser. Necessary conditions for stimulated emission of the first and second kind are presented. Maxwell's equations in the gain medium are applied to obtain equations for energy flux and for the description of non-linear phase effect. Based on the nonlinear theory, a number of experiments have been simulated; it indicates that the nonlinear theory is a new paradigm in laser theory. The nonlinear theory has provided recommendations for the development of lasers with improved properties, such as lasers with increased power and lasers with reduced natural linewidth.

Ultra‐fast dynamic nonlinear mechanism of Fabry–Perot cavity with femtosecond pumping

“…The Fabry–Perot (FP) cavity is a basic and important optical device that plays an important role in the design of various types of optical devices and exhibits wide applications. To date, many researchers have devoted considerable effort to the nonlinear dynamic effects of the FP cavity and have developed many novel optical devices, such as interferometers, 1,2 resonators, 3,4 lasers, 5,6 amplifiers, 7,8 optical bistability, 9,10 and other applications 11,12 …”

“…The Fabry-Perot (FP) cavity is a basic and important optical device that plays an important role in the design of various types of optical devices and exhibits wide applications. To date, many researchers have devoted considerable effort to the nonlinear dynamic effects of the FP cavity and have developed many novel optical devices, such as interferometers, 1,2 resonators, 3,4 lasers, 5,6 amplifiers, 7,8 optical bistability, 9,10 and other applications. 11,12 In addition, the FP cavity can be combined with other materials or structures to realize a variety of optical devices through the resonance of different optical modes to enhance the field, resulting in refractive index sensing.…”