Journal of Modern Optics

All-optical switching based on the electromagnetically induced transparency effect of an active photonic crystal microcavity

Y. He, T. Wang, Wei Yan, X.M. Li, Chuanbo Dong, Jianqiao Tang, Bing Liu

Published Feb 18, 2014• 8 citations

Abstract

We report a new all-optical switching in a two-dimensional photonic crystal microcavity made of semiconductor multiple quantum wells and realized based on the electromagnetically induced transparency effect with exciton and two-exciton energy levels. We use the quantum coherence effects to achieve small absorption of the probe field, and the absorption of the probe field can be adjusted by controlling the pump field and decay rate. We turn the control field into pulses of light field so that we can regulate the efficiency of the switch. Through selecting the appropriate control light field intensity, we can obtain a switching efficiency of 85% and a switching time is 10 ps. This result can be used for the development of new types of nanoelectronic devices for realizing the switching process.

DOI: 10.1080/09500340.2014.890251

Related papers

All-Optical Switching Based on EIT Effects of Semiconductor Multiple Quantum Wells Exciton Levels

鸣笛杜

我们报道了一种全新的全光开关，该光开关是在半导体多量子阱中基于激子和双激子能级形成的EIT效应，利用量子相干相消效应来减小材料对探测光场的吸收，且探测光场吸收的强度可以通过控制光场来调节。若将控制光场设置为脉冲光场，则可以实现探测光场的开关调制，通过选取适当的控制光场的强度，可以得到约86%的开关效率。 We report a new all-optical switching. The all-optical switching is based on EIT effect of semiconductor multiple quantum wells exciton energy levels, the use of quantum coherence effects can reduce the absorption of the probe light field, and the intensity of the absorption for the probe light field can be adjusted by the control light field. If the control light field is pulse light field, the all-optical switching can be performed. We can select the appropriate intensity of control light field; the efficiency of switching can reach at almost 86%.

OptoelectronicsJan 1, 20130 citations

Evolution of all-optical electromagnetically induced absorption and induced transparency in triple-microcavity-based one-dimensional photonic crystals

Ahmer Naweed

All-optical analogs of electromagnetically induced absorption (EIA) and electromagnetically induced transparency (EIT) are important for light storage, sensing, and optical communication. Here, we report results of a computational study focusing on the EIA and EIT characteristics of triple-microcavity hosting one-dimensional photonic crystals (PHCs). In contrast to previous experimental investigation of dual PHC cavities, realization EIA and EIT in the triple-cavity PHC is not restricted to reflection and transmission, respectively. In addition, the dispersive response of the triple-cavity is also distinct since EIA in the triple-cavity may lead to the generation of both sub- and superluminal light pulses. Furthermore, the dispersion of the system at either output may be reversed by altering the distribution of the coupled light among the three cavities. Finally, we discuss the experimental implementation of these features based on a single monolithic PHC and show tuning of the EIA and EIT phenomenon over a broad spectral range by using strain-tunable polymer-based PHC microcavities. Among others, these findings are advantageous for realizing ultra-narrow bandwidth optical filters, all-optical switching, temporal control of cavity quantum electrodynamics effects, and on-chip dispersion control.

OSA ContinuumMar 9, 20213 citations

All-optical switching in a medium of a four-level vee-cascade atomic medium

Khoa Dinh Xuan, Ai Nguyen Van, Dong Hoang Minh +2 more

Abstract We proposed a model for all-optical switching in a medium consisting of four-level vee-cascade atomic systems excited by coupling, probe, and signal fields. It is shown that, by changing the intensity or the frequency of the signal field, the medium can be actively switched between either electromagnetically induced transparency (EIT) or electromagnetically induced absorption (EIA), which has behavior of all-optical switching. As a result, a cw probe field is switched into square pulses by modulating the intensity or the frequency of the signal light. Furthermore, width of the square probe pulses can be controlled by tuning the switching period of the signal field. Such a tuneable all-optical switching is useful for finding related applications in optic communications and optical storage devices.

Optical and Quantum ElectronicsFeb 16, 202212 citations

All-optical switching in a photonic crystal with a defect containing an N -type four-level atomic system

Vasily G. Arkhipkin, S. A. Myslivets

We study the transmission spectra of a one-dimensional photonic crystal with a defect containing a four-level atomic medium that exhibits a greatly enhanced third-order susceptibility while having a vanishing linear susceptibility dependent on the electromagnetically induced transparency. Two ways of controlling the transmission of a photonic crystal are discussed: via absorption, i.e., nonlinear (two-photon) absorption of the probe field enhanced by constructive quantum interference, and via dispersion, which comes down to shifting the resonance frequency of the defect mode for the probe field by varying the refractive index based on the giant Kerr nonlinearity (cross-phase modulation). We demonstrate that such systems enable nonlinear all-optical switching at ultralow intensities of the coupling and switching laser fields.

Physical Review ADec 17, 20129 citations

All-optical switching due to a two-photon process in photonic crystal nanowires

Mahi R. Singh

We study the two-photon switching mechanism in photonic crystal nanowires doped with an ensemble of nanoparticles. Nanowires are made from embedding one crystal into another. The energy spectrum of the embedded crystal is higher than that of the outer photonic crystal. The nanoparticles are interacting with bound states and with each other. The photon absorption coefficients have been calculated in the presence of a probe and a pump laser fields. Two transparent and absorption states are found. We anticipate that the present research can be used to make new types of all-photonic devices.

IEEE Nanotechnology Materials and Devices Conference (NMDC)Jun 1, 20090 citations

Study of optical microcavities with electromagnetically induced transparency for developing new photonic devices

Jorge L. Arce-Diego, Félix Fanjul-Vélez, D. Pereda-Cubián +1 more

All optical devices based on nonlinear effects that use low-level power pumping acquire a great importance in optical communications systems and photonic processing. These optical devices can be implemented by means of different structures and materials. For instance, Fabry-Perot vertical microcavities, whispering gallery based microcavities or hybrid system of photonic crystal microcavities can improve their performance and so make possible a real implementation. In this research work we review the properties of optical media with three-level systems in which electromagnetically induced transparency has been induced. We analyse the effect of including such kind of material in an optical microcavity of the order of wavelenghts. Transmission properties like as the quality factor, the peak of transmission, the power of the coupling field in these microcavities with very small volume and very high non-linear Kerr coefficients will be analysed. Their application for developing new all-optical photonic devices for the next generation of all-optical networks, optical packets switching networks, and quantum information processing will be presented.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIEMay 18, 20072 citations