All-optical switching between modes of a GaAs/GaAlAs multiple quantum well waveguide

Li Kam Wa, P.; Robson, P. N.; Roberts, J. S.; Pate, M. A.; David, J. P. R.
June 1988
Applied Physics Letters;6/13/1988, Vol. 52 Issue 24, p2013
Academic Journal
A strain-induced multiple quantum well waveguide which can support two transverse modes in the plane normal to the quantum wells was excited in the TE mode by 350-ns-long probe pulses of low intensity from a dye laser tuned to a wavelength of 886 nm. A laser diode emitting at 850 nm was used in order to switch the 886 nm light between two positions at the exit facet of this overmoded waveguide. The switching mechanism has been shown to be non-thermal in origin.


Related Articles

  • Interband transitions in Cd[sub 0.07]Zn[sub 0.93]Te/ZnTe strained single quantum wells grown by.... Lee, J.H.; Park, H.L. // Applied Physics Letters;10/16/1995, Vol. 67 Issue 16, p2344 

    Investigates the interband transitions in Cd[sub 0.07]Zn[sub 0.93]Te/ZnTe strained single quantum wells. Utilization of double-well temperature-gradient vapor deposition growing in the quantum well; Characterization of the well structural properties; Discovery of several resonant excitations in...

  • Charge accumulation and band edge in the double barrier tunneling structure. Fu, Y.; Willander, M. // Journal of Applied Physics;4/15/1992, Vol. 71 Issue 8, p3877 

    Focuses of a study which investigated the effect of charge accumulation and band edge in the double barrier resonant tunneling structure. Background to the study; Local state in the quantum well; Resonant state and local state in the system; Calculation of density.

  • Excitation of a Wake Field by a Relativistic Electron Bunch in a Semi-Infinite Dielectric Waveguide. Balakirev, V. A.; Onishchenko, I. N.; Sidorenko, D. Yu.; Sotnikov, G. V. // Journal of Experimental & Theoretical Physics;Jul2001, Vol. 93 Issue 1, p33 

    A wake field excited by a relativistic electron bunch in a semi-infinite metal waveguide filled with a dielectric consists of the Vavilov-Cherenkov radiation, the "quenching"-wave field, and transient radiation, which interfere with each other. An exact analytic expression for the transient...

  • Multiple-quantum-well nonlinear waveguide grating device. Cada, M.; Vasey, F.; Stauffer, J.M.; Reinhart, F.K. // Applied Physics Letters;11/4/1991, Vol. 59 Issue 19, p2366 

    Describes a multiple-quantum-well nonlinear waveguide grating device. Variation of the out-coupling angle of the grating; Demonstration of the principle of self-beam steering by the optical power; Application of the principle for dispersion measurements.

  • Simultaneous measurement of electron and hole escape times from biased single quantum wells. Cavailles, J.A.; Miller, D.A.B. // Applied Physics Letters;7/27/1992, Vol. 61 Issue 4, p426 

    Determines the electron and hole escape times from biased quantum wells. Use of picosecond pump probe measurements on wave guides; Identification of contributions from excitonic saturation and field screening by photogenerated carriers; Dominance of thermally assisted escape at room temperature.

  • Native-oxide-defined low-loss AlGaAs-GaAs planar waveguide bends. Caracci, S.J.; Krames, M.R. // Applied Physics Letters;10/18/1993, Vol. 63 Issue 16, p2265 

    Examines the fabrication of planar waveguide S-bends from AlGaAs-GaAs quantum well heterostructure by wet native oxidation process. Use of low refractive index to define the wide single mode guides; Investigation on the guides with two different oxidation depths; Determination of the routing...

  • Light propagation, optical modulation, and beam steering in waveguides with quantum well voltage.... Harwit, Alex; Fernandez, R. // Applied Physics Letters;1/30/1995, Vol. 66 Issue 5, p541 

    Examines the light propagation, optical modulation and beam steering in waveguides with quantum well voltage tunable cladding layer. Fabrication of electro-optic modulators; Relationship between contrast ratios and insertion losses; Use of an electric field to change the distribution of light...

  • Low current threshold AlGaAs visible laser diodes with an (AlGaAs)m(GaAs)n superlattice quantum well. Hayakawa, T.; Suyama, T.; Takahashi, K.; Kondo, M.; Yamamoto, S.; Hijikata, T. // Applied Physics Letters;9/15/1986, Vol. 49 Issue 11, p636 

    Very short period (AlGaAs)m(GaAs)n superlattices (SL’s) have been used for single quantum wells (SQW’s) of visible laser diodes emitting in the wavelength region of 680–785 nm for the first time. The threshold current of graded-index separate-confinement-heterostructure...

  • Dual-wavelength emission from a twin-stripe single quantum well laser. Tokuda, Yasunori; Abe, Yuji; Matsui, Teruhito; Tsukada, Noriaki; Nakayama, Takashi // Applied Physics Letters;11/23/1987, Vol. 51 Issue 21, p1664 

    We demonstrate a dual-wavelength laser constructed from a single quantum well structure. The device includes twin-stripe waveguides which differ in width. The two constituent emitters in the device of appropriate cavity lengths operate at widely different wavelengths, which are based on the...


Read the Article


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

Try another library?
Sign out of this library

Other Topics