Compound laser modes of mutually delay-coupled semiconductor lasers: bifurcation analysis of the locking region
نویسندگان
چکیده
A system of two mutually delay-coupled semiconductor lasers with a small delay of 170 ps in the coupling is studied. Apart from a possible difference in their optical frequencies, we consider two identical lasers. We show the existence and stability of compound laser modes. They are the basic solutions of the system describing a frequency locked state of the coupled laser system. A characteristic detuning scenario is shown, including a sequence of mode jumps and multistability within the locking region.
منابع مشابه
Mutually delay-coupled semiconductor lasers: Mode bifurcation scenarios
We study the spectral and dynamical behavior of two identical, mutually delay-coupled semiconductor lasers. We concentrate on the short coupling-time regime where the number of basic states of the system, the compound laser modes (CLMs), is small so that their individual behavior can be studied both experimentally and theoretically. As such it constitutes a prototype example of delay-coupled la...
متن کاملCompound Laser Modes of Mutually Delay-Coupled Lasers
Abstract. We consider a model of two mutually delay-coupled semiconductor lasers in a face to face configuration. The lasers are coherently coupled via their optical fields, where the time delay τ arises from the finite propagation time of the light from one laser to the other. This system is described well by single mode rate equations, which are a system of delay differential equations (DDEs)...
متن کاملExperimentally Observed Dynamical Characteristics of Mutually Coupled Semiconductor Lasers With or Without Optoelectronic Feedback
Mutually-coupled semiconductor lasers are of great current interest because of the important insight they provide into coupled physical, chemical, and biological systems. Two semiconductor lasers either with or without optoelectronic feedback are mutually coupled together through optoelectronic paths. It is found that mutual coupling can signi cantly a ect the dynamics of the semiconductor lase...
متن کاملSymmetry-breaking bifurcations in two mutually delay-coupled lasers
We consider a symmetric system of delay differential equations arising from a model of two mutually delay-coupled semiconductor lasers. The system is described using the Lang-Kobayashi rate equations whose basic solutions are called compound laser modes (CLMs). We employ a group-theoretic approach to find solutions and to identify symmetry-breaking steady-state and Hopf bifurcations. This class...
متن کاملDynamics of two semiconductor lasers coupled by a passive resonator.
The stability of two semiconductor lasers that are spatially separated by a passive resonator is analyzed using the composite-cavity mode approach. We study the nonlinear interactions of three composite-cavity modes and identify regions of in-phase and out-of-phase laser locking in the parameter plane of the transmission coefficients of the coupling mirrors and the laser length difference. Bifu...
متن کامل