13 March 2006 Nonlinear mode interaction as a mechanism to obtain slow/fast light in diode lasers
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Abstract
The nonlinear mode interactions (NMIs) in semiconductor lasers produce perturbations of optical parameters in the vicinity of strong-mode frequencies. These perturbations include changes in the complex refractive index, which could either increase or decrease, depending on the frequency detuning. Variation of the refractive index over a small frequency range may produce a rather strong variation of the group index. There are regimes of slow light (large group index), fast light (group index smaller than the phase index), and a range of negative group index. Critically anomalous dispersion conditions occur when the group index changes its sign. Thus, the NMIs in diode lasers and in semiconductor optical amplifiers can be used to obtain slow or fast light. A specific application is considered for gyroscopic laser devices that are sensitive to dispersion. It is shown that the fast light phenomenon can be used to increase the scale factor in a gyro without increasing its size.
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Peter G. Eliseev, Peter G. Eliseev, Hongjun Cao, Hongjun Cao, Chiyu Liu, Chiyu Liu, Gennady A. Smolyakov, Gennady A. Smolyakov, Marek Osiński, Marek Osiński, } "Nonlinear mode interaction as a mechanism to obtain slow/fast light in diode lasers", Proc. SPIE 6115, Physics and Simulation of Optoelectronic Devices XIV, 61150U (13 March 2006); doi: 10.1117/12.661347; https://doi.org/10.1117/12.661347
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