Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Nikolai Stelmakh"'
Publikováno v:
Journal of Modern Optics. 57:1908-1915
We present the quantum theory of a spatially-multimode traveling-wave phase-sensitive optical parametric amplifier (OPA) pumped by a beam with arbitrary spatial profile. By using Green's functions of the classical OPA, we derive the normally-ordered
Publikováno v:
Journal of Modern Optics. 56:2029-2033
We analyze the spatial-frequency dependence of the gain of phase-insensitive and phase-sensitive optical parametric amplifiers with plane-wave pumping. We discuss the dependence of their spatial bandwidths on pump power and crystal length, L, and obs
Autor:
Michael Vasilyev, Nikolai Stelmakh
Publikováno v:
International Journal of Modern Physics B. 20:1536-1542
We review the relations between squeezing and optical communication advances and introduce the field of distributed phase-sensitive amplification, where we expect this cross-fertilization to happen next. We consider the quantum noise properties of ph
Publikováno v:
Optics express. 21(23)
We compute the eigenmodes of a spatially-broadband optical parametric amplifier with elliptical Gaussian pump and show that the well-amplified eigenmodes can be compactly represented by a low-dimensional subspace of the first few Laguerre- or Hermite
Publikováno v:
IEEE Photonics Technology Letters. 17:112-114
Channel tunability of 10 GHz has been demonstrated in a 40-channel 50-GHz-spaced folded silica-on-silicon arrayed waveguide grating (AWG) multiplexer using quadratic nonlinearity in phosphorous-doped glass and a specially shaped electrode. Such AWG c
Publikováno v:
IEEE Photonic Society 24th Annual Meeting.
We compute eigenmodes of spatially-broadband optical parametric amplifier either with fundamental Hermite-Gaussian pump and phase mismatch Δk≠0, or with higher-order pump and Δk=0. Both cases are capable of shifting the maximum gain to higher-ord
Autor:
Nikolai Stelmakh, Michael Vasilyev
Publikováno v:
IEEE Photonics Society Summer Topicals 2010.
We discuss multiport spectrally periodic dispersion-compensating arrayed-waveguide-grating (AWG) devices, which integrate multiple on-chip compensators sharing the same AWG elements. The new designs are advantageous in terms of compactness, insertion
Publikováno v:
Scopus-Elsevier
The polarization-dependent transmission spectra of silver nanoapertures are investigated. A strong transmission loss in the region of plasmonic resonance and a suppression of cut-off attenuation in the donut aperture are observed.
Publikováno v:
Scopus-Elsevier
We experimentally show that the spontaneous lifetime of a CdSe/ZnS quantum dot can be reduced to the value of 600 ps by surrounding the quantum dot with a material of high permittivity.
Publikováno v:
Optics express. 17(14)
We numerically analyze phase-sensitive parametric amplification and de-amplification of a multimode field representing a multi-pixel text image. We optimize pumping configuration and demonstrate that approximately 10-dB gain is achievable with relati