Diffraction model of a semiconductor amplifier

Journal Article · Sun Apr 30 04:00:00 EDT 2006 · Quantum Electronics (Woodbury, N.Y.)

DOI:https://doi.org/10.1070/QE2006V036N04ABEH013141· OSTI ID:21456881

Vysotskii, D V; Elkin, N N; Napartovich, A P; Sukharev, Aleksandr G; Troshchieva, V N ^[1]

---

1. State Research Center of Russian Federation 'Troitsk Institute for Innovation and Fusion Research', Troitsk, Moscow Region (Russian Federation)

A three-dimensional diffraction model of a semiconductor heterostructure amplifier is developed. The model describes the field propagation and optical mode establishment taking into account the amplification kinetics within the framework of the diffusion equation for current carriers in a quantum well. The results of application of this model are presented for an amplifier with an asymmetric broad waveguide and an antiwaveguide structure in the lateral direction that does not confine the field. It is shown that the length of establishment of the fundamental mode for such a structure is comparable with the length over which a weak signal is enhanced by two orders of magnitude. The balance between the gain and loss for the steady-state mode as a function of the waveguide insert width is analysed. The effect of this width on the properties of the fundamental optical mode, including the far-field intensity distribution, is studied. (lasers and amplifiers)

• OSTI ID: 21456881
• Journal Information: Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 4 Vol. 36; ISSN 1063-7818
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFICATION
AMPLIFIERS
ASYMMETRY
CARRIERS
CURRENTS
DIFFERENTIAL EQUATIONS
DIFFRACTION MODELS
DIFFUSION EQUATIONS
ELECTRONIC EQUIPMENT
EQUATIONS
EQUIPMENT
GAIN
KINETICS
MATERIALS
MATHEMATICAL MODELS
NANOSTRUCTURES
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE MODELS
QUANTUM WELLS
REACTION KINETICS
SEMICONDUCTOR MATERIALS
SIGNALS
STEADY-STATE CONDITIONS
THREE-DIMENSIONAL CALCULATIONS
WAVEGUIDES