Characterization of Effective Masses and Optical Gain in Strained Quantum-Well Lasers
نویسندگان
چکیده
منابع مشابه
Differential gain and damping factor in strained InGaAs/GaAs quantum well lasers
The differential gain, modulation response, and damping rate of strained-layer Ino•3Ga(J•7As multiple quantum well (MQW) short cavity graded-index separate confmement heterostrucutre (GRINSCH) and SCH lasers fabricated by chemically-assisted ion beam etching (CAIBE) are analyzed. Calculated differential gains vary from 0.7 to. 1 .6 x 1015 cm2, with only relatively long lasers of 400 p.m demonst...
متن کاملDifferential gain in InP-based strained layer multiple quantum well lasers
Compressive biaxial strain has been predicted to enhance the small-signal modulation bandwidth of quantum well lasers, owing to increased differential gain in these devices. However, the effect of tensile strain on these devices is less clear. We have investigated the effects of both compressive and tensile strain on the differential gain for multiple quantum well lasers with In,Ga,-As quantum ...
متن کاملThe Effects of Strained Multiple Quantum Well on the Chirped DFB-SOA All Optical Flip-Flop
In this paper, based on the coupled-mode and carrier rate equations, a dynamic model and numerical analysis of a multi quantum well (MQW) chirped distributed feedback semiconductor optical amplifier (DFB-SOA) all-optical flip-flop is precisely derived. We have analyzed the effects of strains of QW and MQW and cross phase modulation (XPM) on the dynamic response, and rise and fall times of the ...
متن کاملOptical ASK and FSK Modulation By Using Quantum Well Transistor Lasers
In this paper, transistor lasers (TLs) are used as an optical modulator for generation of ASK(Amplitude Shift Keying) and FSK (Frequency Shift Keying) optical signals. Our analysis is based on continuity equation, rate equations, and the theory of discontinuity of quasi-fermi level at the abrupt junction. Our simulation results indicate that, the specification of ASK and FSK optical signals, ar...
متن کاملGain Optimization in Optically Pumped AlGaAs Unipolar Quantum-Well Lasers
A method is described for the optimized design of quantum-well (QW) structures, in respect to maximizing the stimulated gain in optically pumped intersubband lasers. It relies on applying supersymmetric quantum mechanics (SUSYQM) to an initial Hamiltonian, in order to both map one bound state below the spectral range of the initial Hamiltonian, and to generate a parameter-controlled family of i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 1995
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.88.949