Low-power, multiport, ultrafast, parametric switching in cascaded waveguide couplers

Schiek, Roland; Iwanow, Robert; Stegeman, George; Pertsch, Thomas; Lederer, Falk; Yoo Hong Min; Sohler, Wolfgang
July 2005
Applied Physics Letters;7/4/2005, Vol. 87 Issue 1, p011109
Academic Journal
We explore an approach to multiport, phase-insensitive all-optical switching of milliwatt power signals based on linear coupling in cascaded directional couplers and on nonlinear parametric gain via the second-order nonlinearity. For the basic unit, a two-core coupler, we experimentally demonstrated ultrafast transparent switching of 1550 nm signals triggered by 5-ps-long control pulses at ≈775 nm with a peak power of 1.3 W. Theoretically, we show that this concept has the potential for terabit/s switching with a few picojoules control energy and without pulse degradation.


Related Articles

  • Pulse-width selective all-optical switching. Wang, Youfa; Wang, Wenfeng // Applied Physics Letters;5/1/2006, Vol. 88 Issue 18, p181110 

    The coupled nonlinear Schrödinger equations governing the optical pulse coupling in a nonlinear directional coupler are solved numerically. The numerical results show that the optical pulse can be coupled back and forth efficiently between the two-coupled waveguides by varying the input pulse...

  • Time domain numerical model for linear and nonlinear grating assisted co-directional coupler. Gioannini, Mariangela; Montrosset, Ivo // Optical & Quantum Electronics;Jan2004, Vol. 36 Issue 1-3, p119 

    A time domain algorithm for the dynamic analysis of linear and nonlinear devices based on coupled modes propagating with different group velocities is presented for the first time. As a test case, the numerical algorithm is applied to the analysis of a linear grating assisted co-directional...

  • Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers. Chee-Wei Lee // International Journal of Optics;2011, p1 

    We present the first unique design of a polarization-independent dual-wavelength splitter for wavelengths around 1.3 μm and 1.55 μm that is potentially of great interest to passive optical network (PON) applications. The filter design is simple compared with the other architectures and is...

  • Coulomb blockade directional coupler. Pingue, P.; Piazza, V.; Beltram, F.; Farrer, I.; Ritchie, D. A.; Pepper, M. // Applied Physics Letters;1/31/2005, Vol. 86 Issue 5, p052102 

    A tunable directional coupler based on Coulomb blockade effect is presented. Two electron waveguides are coupled by a quantum dot to an injector waveguide. Electron confinement is obtained by surface Schottky gates on a single GaAs/AlGaAs heterojunction. Magneto-electrical measurements down to...

  • Transmittances Distributions at the Diffusive-Localized Crossover in Disordered Wave-guides with Absorption. Froufe-Pérez, L. S.; García-Mochales, P.; Serena, P. A.; Sáenz, J. J. // AIP Conference Proceedings;2005, Vol. 780 Issue 1, p381 

    An analysis of the behavior of transmittances distributions with the length in disordered wave-guides with absorption is presented. The study is focused on the crossover between diffusive and localize regimens. Distributions are obtained from numerical calculations from the well-known...

  • Design and analysis of an isotropic two-dimensional planar Composite Right/Left-Handed waveguide structure. Eberspäacher, M. A.; Bauer, M.; Eibert, T. F. // Advances in Radio Science;2011, Vol. 9, p73 

    A two-dimensional isotropic Composite Right/Left-Handed (CRLH) waveguide structure is proposed which is designed for operation in X-band. The balanced structure possesses left-handed behaviour over a large bandwidth from 7.5 GHz up to its transition frequency at 10 GHz. Above this region, the...

  • Distributed feedback regime of photonic crystal waveguide lasers at 1.5 μm. Checoury, X.; Boucaud, P.; Lourtioz, J-M.; Pommereau, F.; Cuisin, C.; Derouin, E.; Drisse, O.; Legouezigou, L.; Lelarge, F.; Poingt, F.; Duan, G. H.; Mulin, D.; Bonnefont, S.; Gauthier-Lafaye, O.; Valentin, J.; Lozes, F.; Talneau, A. // Applied Physics Letters;12/6/2004, Vol. 85 Issue 23, p5502 

    Lasing of W3 and W2/3 triangular lattice photonic crystal waveguides on InP substrate is investigated around 1.5 μm by optical pumping. The lattice period of the fabricated structures is varied from 320 to 540 nm by steps of 20 nm, thereby leading to a detailed exploration of the lasing...

  • Square-wave, spin-dependent transmission through periodically stubbed electron waveguides. Wang, X. F.; Vasilopoulos, P. // AIP Conference Proceedings;2005, Vol. 772 Issue 1, p1415 

    We study spin-dependent electron transmission T through waveguides (WGs) with periodically varied width c and strength α of the spin-orbit interaction. c is varied by attaching stubs to the WG, and α by applying gates. T can exhibit a nearly square-wave behavior as a function of the stub...

  • Effect of carrier loss through waveguide layer recombination on the internal quantum efficiency in large-optical-cavity laser diodes. Ryvkin, B. S.; Avrutin, E. A. // Journal of Applied Physics;6/1/2005, Vol. 97 Issue 11, p113106 

    An analytical treatment for carrier distribution in optical confinement layers (OCLs) of semiconductor lasers with bimolecular recombination is developed. On the basis of this approach, the effect of OCL recombination on the internal quantum efficiency of a laser is evaluated. It is shown that...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics