Zobrazeno 1 - 10
of 248
pro vyhledávání: '"Wolfgang Sohler"'
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 5, Pp 1396-1400 (2012)
Tunable all-optical wavelength conversion (AOWC) of a 40-Gb/s RZ-OOK data signal based on cascaded second-harmonic generation (SHG) and difference-frequency generation (DFG) in a Ti:PPLN waveguide is demonstrated. Error-free performances with negligi
Externí odkaz:
https://doaj.org/article/e475ae33d0f84dcebe0bb7340aa15065
Autor:
Kai-Hong Luo, Harald Herrmann, Stephan Krapick, Benjamin Brecht, Raimund Ricken, Viktor Quiring, Hubertus Suche, Wolfgang Sohler, Christine Silberhorn
Publikováno v:
New Journal of Physics, Vol 17, Iss 7, p 073039 (2015)
The practical prospect of quantum communication and information processing relies on sophisticated single-photon pairs, which feature a controllable waveform, narrow spectrum, excellent purity, fiber compatibility, and miniaturized design. For practi
Externí odkaz:
https://doaj.org/article/070402330c234e259eb6d309b359d6a0
Autor:
Alexander S. Solntsev, Frank Setzpfandt, Alex S. Clark, Che Wen Wu, Matthew J. Collins, Chunle Xiong, Andreas Schreiber, Fabian Katzschmann, Falk Eilenberger, Roland Schiek, Wolfgang Sohler, Arnan Mitchell, Christine Silberhorn, Benjamin J. Eggleton, Thomas Pertsch, Andrey A. Sukhorukov, Dragomir N. Neshev, Yuri S. Kivshar
Publikováno v:
Physical Review X, Vol 4, Iss 3, p 031007 (2014)
We demonstrate a nonlinear optical chip that generates photons with reconfigurable nonclassical spatial correlations. We employ a quadratic nonlinear waveguide array, where photon pairs are generated through spontaneous parametric down-conversion and
Externí odkaz:
https://doaj.org/article/e7e4d69a7a434d549027297aa36010f5
Publikováno v:
Optics Communications. 361:143-147
A phase engineered all-optical wavelength converter for ultra-short pulses (down to 140 fs) in a Ti-diffused, periodically poled lithium niobate (Ti:PPLN) waveguide is proposed. The phase engineering, due to the phase conjugation between signal and i
Publikováno v:
Applied Physics B. 120:737-749
A theoretical analysis of the photorefractive sensitivity of Ti:PPLN ridge waveguides in comparison with conventional Ti:PPLN channel waveguides is presented. In particular, intensity-dependent photorefraction, effective indices, waveguide modes and
Autor:
François Reynaud, Ludovic Grossard, Laurent Delage, Harald Herrmann, Damien Ceus, Wolfgang Sohler
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2013, 9 p. ⟨10.1093/mnras/sts654⟩
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P-Oxford Open Option A, 2013, 9 p. ⟨10.1093/mnras/sts654⟩
International audience; In the context of new generation instruments for astronomical interferometer, we have developed in laboratory a new kind of optical interferometer using the frequency conversion of the star light. We investigate the sensitivit
Publikováno v:
Laser & Photonics Reviews. 7:122-131
The fabrication by diffusion doping and a detailed optical investigation of a Ti:Tm:LiNbO3 waveguide amplifier and of a Fabry-Perot type Ti:Tm:LiNbO3 laser are reported. Both devices are in-band pumped by a laser diode at 1650 nm. The wave-guide ampl
Publikováno v:
Laser & Photonics Reviews. 6:488-503
The state-of-the-art of high-refractive-index-contrast single-crystalline thin lithium niobate (LiNbO3) films as a new platform for high-density integrated optics is reviewed. Sub-micrometer thin LiNbO3 films are obtained by “ion-slicing”. They c
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 5, Pp 1396-1400 (2012)
Tunable all-optical wavelength conversion (AOWC) of a 40-Gb/s RZ-OOK data signal based on cascaded second-harmonic generation (SHG) and difference-frequency generation (DFG) in a Ti:PPLN waveguide is demonstrated. Error-free performances with negligi
Publikováno v:
Physical Review A. 92
We demonstrate nonlinear coupling in a discrete optical system. This is achieved in waveguide arrays with quadratic nonlinearity, where the symmetries of the nonlinearly interacting waveguide modes are used to suppress the usually dominating nonlinea