Research ArticleOpen AccessGoogle Scholar indexed

Optical Bistability in an Acousto-Optic Tunable Filter (AOTF) Operating with Short Optical Pulses

¹ Departamento de Física, Laboratório de Telecomunica??es e Ciência e Engenharia de Materiais LOCEM, Universidade Federal do Ceará, Fortaleza, Brazil
² Departamento de Física, Laboratório de Telecomunica??es e Ciência e Engenharia de Materiais LOCEM, Universidade Federal do Ceará, Fortaleza, Brazil
³ Departamento de Física, Laboratório de Telecomunica??es e Ciência e Engenharia de Materiais LOCEM, Universidade Federal do Ceará, Fortaleza, Brazil
⁴ Departamento de Física, Laboratório de Telecomunica??es e Ciência e Engenharia de Materiais LOCEM, Universidade Federal do Ceará, Fortaleza, Brazil
⁵ Departamento de Teleinformática, Laboratório Especialista em Sistemas de Telecomunica??es e Ensino, LESTE, Instituto Federal do Ceará, IFCE, Campus Fortaleza, Fortaleza, Brazil
⁶ Departamento de Física, Laboratório de Telecomunica??es e Ciência e Engenharia de Materiais LOCEM, Universidade Federal do Ceará, Fortaleza, Brazil

Journal of Electromagnetic Analysis and Applications·Volume 04 (2012)·Pages 112–117·Published 28 March 2012·DOI10.4236/jemaa.2012.43015

Abstract

In this paper we report for the first time the presence of bistability in an acoustic-optic tunable filter (AOTF) operating with ultrashort (2 ps) optical light pulses. The results for the study of bistability has shown the dependence of the hysteresis curve with the product of the coupling constant (κ) by the length of the device (ξ L ) and the conversion power-coupling constant factor (G). The range of bistability varies significantly with both G and with κξ L parameters. The variation of κξ L directly increases the size of the range of bistability hysteresis while the increase in G causes the bistability to occur at low powers. The phenomenon of optical bistability (OB) is the object of increasing interest due to its possibilities for important device applications. A bistable device is a device with a capability to generate two different outputs for a given input and the physical requirements for this are an intensity-dependence refractive index and an optical feedback mechanism.

KeywordsBistabilityAcousto-Optic Tunable Filter

R. Stofferl and Y. S. Kivshar, “Optical Bistability in a Nonlinear Photonic Crystal Waveguide Notch Filter,” Pro- ceedings Symposium IEEE/LEOS Benelux Chapter, Delft, 2000, pp. 247-250.
F. S. Felber and J. H. Marburger, “Theory of Nonresonant Multistable Optical Devices,” Applied Physics Letters, Vol. 28, No. 731, 1976, pp. 335-342. doi:10.1063/1.88632
J. H. Marburger and F. S. Felber, “Theory of a Lossless Nonlinear Fabry-Perot Interferometer,” Physical Review A, Vol. 17, 1978, pp. 335-342. doi:10.1103/PhysRevA.17.335
Herbert G. Winful, J. H. Marburger and E. Garmire, “Theory of Bistability in Nonlinear Distributed Feedback Structures,” Applied Physics Letters, Vol. 35, No. 5, 1979, p. 379. doi:10.1063/1.91131
P. W. Hawkes, “Advances in Electronics and Electron Physcs,” Academic Press, Inc., London, 1994.
A. E. Siegman, “Lasers,” University Science Books, Mill Valley, 1986.
R. W. Boyd, “Nonlinear Optics,” Academic Press, Inc., San Diego, 1992.
C. Bowden, M. Ciftan and H. R. Robl, “Optical Bistabil- ity,” Plenum, New York, 1981. doi:10.1007/978-1-4684-3941-0
B. Y. Kim, J. N. Blake, H. E. Engan, H. J. Shaw, “All- Fiber Acousto-Optic Frequency Shifter,” Optics Letters, Vol. 11, No. 6, 1986, pp. 389-391. doi:10.1364/OL.11.000389
T. A. Birks, P. St. J. Russel and D. O. Culverhouse, “The Acoust-Optic Effectin Single-Mode Fiber Tapers and Cou- plers,” Journal of Lightwave Technology, Vol. 14, No. 11, 1996, pp. 2519-2529. doi:10.1109/50.548150
R. Feced, C. Alegria, M. N. Zervas and R. I. Laming, “Acoustooptic Attenuation Filters Based on Tapered Op- tical Fibers,” IEEE Journal of Selected Topics in Quantum Electronics, Vol. 5, No. 5, 1999, pp. 1278-1288. doi:10.1109/2944.806753
A. Díez, M. Delgado-Pinar, J. Mora, J. L. Cruz and M. V. Andrés, “Dynamic Fiber-Optic Add-drop Multiplexer Using Bragg Gratings and Acousto-Optic-Induced Cou- pling,” Technology Letters, Vol. 15, No. 1, 2003, pp. 84-86. doi:10.1109/LPT.2002.805867
R. A. Oliveira, C. A. F Marques, C. E. N. Mayer, J. T. Pereira, R. N. Nogueira and A. A. P. Pohl, “Single Device for Excitation of Both Flexural and Longitudinal Acousto- Optic Effects in Fiber Bragg gratings,” Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International, Belem, 3-6 November 2009, pp. 546-549. doi:10.1109/IMOC.2009.5427526

Menu

Menu

Menu

Optical Bistability in an Acousto-Optic Tunable Filter (AOTF) Operating with Short Optical Pulses

Abstract

References (30)