High-contrast all-optical bistable switching in photonic crystal microcavities
نویسندگان
چکیده
We present a bistable photonic crystal configuration consisting of a waveguide sided coupled to a single-mode cavity with instantaneous Kerr nonlinearity. We show that such a configuration can generate extremely high contrast between the bistable states in its transmission with low input power. We also provide an analytic theory that can completely account for the entire transient switching dynamics, as revealed by finite difference time domain simulations. © 2003 American Institute of Physics. @DOI: 10.1063/1.1615835#
منابع مشابه
All-Optical Switching in InGaAsP–InP Photonic Crystal Resonator Coupled With Microfiber
We demonstrated high-efficiency all-optical switching in an InGaAsP–InP photonic crystal resonator evanescently coupled with a microfiber. The nonlinearity was based on carrier injection by single-photon absorption of 980-nm pump light. Carrier-induced and thermally induced shifts of resonance wavelengths were observed under continuous-wave pumping. In pulse operation, an instantaneous refracti...
متن کاملUltra-Fast All-Optical Symmetry 4×2 Encoder Based on Interface Effect in 2D Photonic Crystal
This paper deals with the design and simulation of all-optical 4×2 encoderusing the wave interference effect in photonic crystals. By producing 4 opticalwaveguides as input and two waveguides as output, the given structure was designed.The size of the designed structure is 133.9 μm2. The given all-optical encoder has acontrast ratio of 13.2 dB, the response time of 0.45 ...
متن کاملMicroheater-integrated silicon coupled photonic crystal microcavities for low-power thermo-optic switching over a wide spectrum
We design, fabricate and experimentally demonstrate a compact thermo-optic gate switch comprising a 3.78μm-long coupled L0-type photonic crystal microcavities on a silicon-on-insulator substrate. A nanohole is inserted in the center of each individual L0 photonic crystal microcavity. Coupling between identical microcavities gives rise to bonding and antibonding states of the coupled photonic mo...
متن کاملطراحی سوئیچ تمام نوری با استفاده از خاصیت غیر خطی Kerr وDIT با نانو کریستال چهار ترازه
We propose a novel two state and all-optical controllable switch using DIT, Kerr effect and interaction between quantum dots (QD) and quantum electrodynamics cavity (CQED). The two state and all-optical controllable switch is coupled to photonic waveguide from a rapid nonlinear environment (photonic crystal) and CQED. We consider the nano-crystal are doped to crystal photonic cavity as a 4-leve...
متن کاملThe role of group index engineering in series-connected photonic crystal microcavities for high density sensor microarrays.
We experimentally demonstrate an efficient and robust method for series connection of photonic crystal microcavities that are coupled to photonic crystal waveguides in the slow light transmission regime. We demonstrate that group index taper engineering provides excellent optical impedance matching between the input and output strip waveguides and the photonic crystal waveguide, a nearly flat t...
متن کامل