Modeling optical transistor based on the pole effect of parity-time symmetric coupled cavities

2021 ◽  
pp. 127831
Author(s):  
Ji Ma ◽  
Yuntuan Fang
Keyword(s):  
Coupled Cavities

E-band cavity diplexer based on micromachined technology

2015 ◽  
Vol 8 (2) ◽  
pp. 179-184 ◽  
Author(s):  
Valeria Nocella ◽  
Luca Pelliccia ◽  
Paola Farinelli ◽  
Roberto Sorrentino ◽  
Mario Costa ◽  
...  
Keyword(s):  
Insertion Loss ◽  
Radio Link ◽  
Next Generation ◽  
Frequency Range ◽  
Coupled Cavities ◽  
Future Production ◽  
Band Pass ◽  
Manufacturing Tolerances ◽  
Manufacturing Yield ◽  
Better Than

A robust and tuneless micromachined waveguide diplexer operating in the frequency range 71–86 GHz is here presented. The diplexer is based on multiple coupled cavities and it is manufactured using micromachining technology on two staked silicon layers. The diplexer consists of two filters combined to a common waveguide port via an E-plane T-junction. The two eight-order band-pass filters are centered at 73.5 and 83.5 GHz. The fractional bandwidths for two bands are 8.8 and 7.8% at higher- and lower-band, respectively. The measured insertion loss is below 0.7 dB for both the filters and the diplexer isolation is better than 55 dB, as required. The proposed technology allows for a very compact device (<20 × 20 × 1.5 mm) and the first prototypes were proved to be very robust to manufacturing tolerances and environmental tests, thus leading to an excellent tuneless manufacturing yield in future production. The diplexer will be employed in next generation terrestrial radio-link communications front-ends.

Application of photonic-crystal coupled cavities for increase in sensitivity of optical sensor

2016 ◽  
Vol 25 (1) ◽  
pp. 25-31
Author(s):  
A. V. Egorov ◽  
N. L. Kazanskiy ◽  
P. G. Serafimovich
Keyword(s):  
Photonic Crystal ◽  
Optical Sensor ◽  
Coupled Cavities

One-step implementation of a multiqubit controlled-phase-flip gate in coupled cavities

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
Yaming Hao ◽  
Gongwei Lin ◽  
Yueping Niu ◽  
Shangqing Gong
Keyword(s):  
Coupled Cavities ◽  
One Step

scholarly journals Effects of Kerr medium in coupled cavities on quantum state transfer

2018 ◽  
Vol 27 (03) ◽  
pp. 1850035
Author(s):  
T. M. Manosh ◽  
Muhammed Ashefas ◽  
Ramesh Babu Thayyullathil
Keyword(s):  
Quantum State ◽  
Nonlinear Medium ◽  
Adiabatic Approximation ◽  
Kerr Medium ◽  
Quantum State Transfer ◽  
Coupled Cavities ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
State Transfer ◽  
Rotating Wave

We study the effect of Kerr type nonlinear medium in quantum state transfer (QST). We have investigated the effect of different coupling schemes and Kerr medium parameters [Formula: see text] and [Formula: see text]. We found that the Kerr medium introduced in the connection channel can act like a controller for QST. The numerical simulations are performed without taking the adiabatic approximation. Rotating wave approximation is used in the atom–cavity interaction only in the lower coupling regime.

Physics of Widely Tunable VCSELs with Coupled Cavities

2018 ◽  
Author(s):  
Kevin T. Cook ◽  
Pengfei Qiao ◽  
Jipeng Qi ◽  
Larry A. Coldren ◽  
Connie J. Chang-Hasnain
Keyword(s):  
Coupled Cavities

Implementation of three-qubit Toffoli gates via the HeisenbergXYmodel in coupled cavities

2015 ◽  
Vol 62 (16) ◽  
pp. 1283-1290 ◽  
Author(s):  
Meng-Meng Bian ◽  
Ming-Feng Chen ◽  
Zhen-Biao Yang ◽  
Huai-Zhi Wu
Keyword(s):  
Coupled Cavities ◽  
Toffoli Gates

Analysis and Design of Coherent Combining of two Q-Switched Fiber Laser in Mach-Zehnder Type Cavity

2019 ◽  
Vol 40 (4) ◽  
pp. 393-400
Author(s):  
Ali Nassiri ◽  
Hafida Idrissi-Saba ◽  
Abdelkader Boulezhar
Keyword(s):  
Fiber Laser ◽  
Peak Power ◽  
High Energy ◽  
Nanosecond Pulse ◽  
High Peak ◽  
High Peak Power ◽  
Analysis And Design ◽  
Coupled Cavities ◽  
Combining Efficiency ◽  
Coherent Combining

Abstract In this work, we have developed an analytical model of an actively Q-switched Ytterbium-doped fiber laser by using two coupled cavities with amplifying fibers in Mach–Zehnder interferometer configuration. This oscillator system provides high peak power and high energy nanosecond pulse. The pulse energy is almost twice the energy of an individual fiber laser with a combining efficiency goes up 99%. This concept brings some novel perspectives for scaling the high energy and high peak power of nanosecond pulse fiber laser.

Quantum coherence in a coupled-cavity array

2016 ◽  
Vol 30 (18) ◽  
pp. 1650114
Author(s):  
De-Wei Cao ◽  
Yixin Zhang ◽  
Jicheng Wang ◽  
Zheng-Da Hu
Keyword(s):  
Quantum Coherence ◽  
Qualitative Difference ◽  
Superfluid Transition ◽  
Entropy Measure ◽  
Coupled Cavities ◽  
Initial Correlation ◽  
Dynamical Behaviors ◽  
Level Atom ◽  
Cavity Coupling ◽  
Coupled Cavity

The dynamical properties of quantum coherence in the system of two-coupled-cavities, each of which resonantly interacts with a two-level atom, is investigated via the relative entropy measure. We focus on the coherences for the atom–atom, atom–cavity and cavity–cavity subsystems and find that the dynamical behaviors of these coherences depend largely on the cavity–cavity coupling, which may indicate the Mott insulator-superfluid transition in the thermodynamic limit. We also study the influences of the initial cavity–cavity correlation on the coherences and show that the initial correlation of the cavity–cavity subsystem can enhance the revival ability for the atom–atom and cavity–cavity coherences while reduce that for the atom–cavity coherence. Besides, we demonstrate the qualitative difference of dynamics between coherence and entanglement. Finally, the influences of dissipations including cavity losses and atomic decays on the coherence are explored.

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