Effect of two-photon absorption on all-optical switch based on photonic crystal directional coupler

zhao kun; ding yingchun

Volume 21 Issue 07

Jul. 2009

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Article Navigation > High Power Laser and Particle Beams > 2009 > 21(07): 0-

zhou wei-jun, yuan yong-hua, gui yuan-zhen, et al. Thermal effect of T TiO2/SiO2/K9 film by 1.06 μm CW laser[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao kun, ding yingchun. Effect of two-photon absorption on all-optical switch based on photonic crystal directional coupler[J]. High Power Laser and Particle Beams, 2009, 21.

zhou wei-jun, yuan yong-hua, gui yuan-zhen, et al. Thermal effect of T TiO2/SiO2/K9 film by 1.06 μm CW laser[J]. High Power Laser and Particle Beams, 2005, 17.

Citation:

zhao kun, ding yingchun. Effect of two-photon absorption on all-optical switch based on photonic crystal directional coupler[J]. High Power Laser and Particle Beams, 2009, 21.

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Effect of two-photon absorption on all-optical switch based on photonic crystal directional coupler

1.
Department of Physics,Beijing University of Chemical Technology,Beijing 100029,China

Publish Date: 2009-07-15

Abstract

Abstract

An analytic approach to all-optical switch was present, and the two-photon absorption effect were taking into account to analyze all-optical switch, which is based on two-dimensional photonic crystal directional coupler, by means of the finite-difference time-domain method. The numerical study shows that, for short device and high intensity control beam, nonlinear two-photon absorption(TPA) can take effect on the process of coupling action in all-optical switch, and then change the transmission characteristics of input beam. Therefore, under realistic conditions, TPA should be considered in desgning all-optical switch devices based on photonic crystal directional coupler.
- two-dimensional photonic crystal,
- directional coupler,
- finite-difference time-domain,
- two-photon absorption,
- transmission characteristics

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