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1.
Opt Express ; 28(4): 5317-5330, 2020 Feb 17.
Artigo em Inglês | MEDLINE | ID: mdl-32121755

RESUMO

This paper describes a theory for mode locking and frequency comb generation by four-wave mixing in a semiconductor quantum-dot active medium. The derivation uses a multimode semiclassical laser theory that accounts for fast carrier collisions within an inhomogeneous distribution of quantum dots. Numerical simulations are presented to illustrate the role of active medium nonlinearities in mode competition, gain saturation, carrier-induced refractive index and creation of combination tones that lead to locking of beat frequencies among lasing modes in the presence of cavity material dispersion.

2.
Nature ; 453(7197): 867, 2008 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-18548063
3.
Opt Lett ; 13(6): 473-5, 1988 06 01.
Artigo em Inglês | MEDLINE | ID: mdl-19745936

RESUMO

We present a fully quantum-mechanical theory of nondegenerate four-wave mixing processes in three-level cascades with a two-photon pump. The results are applied to the generation of squeezed states of light. We find almost perfect squeezing for some strong pump intensities and tunings within the Rabi sidebands. We find good broadband squeezing for low pump intensities and tunings outside a small region around central tuning. Both cases avoid regions of significant spontaneous emission.

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