Single-mode integrated optical 1×<i>N</i> star coupler

Findakly, T.; Chen, B.

doi:10.1063/1.93174

Cited by 39 publications

(3 citation statements)

References 10 publications

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“…58 · 59 The transfer of optical energy from one waveguide to another can be achieved if the wave propagation constants β 1 and β 2 of the waveguides are the same. A necessary condition for an effective coupling is a close positioning of the waveguides, so that an overlap of the propagating electromagnetic waves is ensured.…”

Section: Controlled Coupling Of Waveguidesmentioning

confidence: 99%

Optical and fiber-optic sensors (review)

Бусурин¹,

Семенов²,

Udalov³

1985

Sov. J. Quantum Electron.

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Kvantovaya Elektron. (Moscow) 12, 901-944 (May 1985)Optical, fiber-optic, and integrated optical sensors of physical effects are reviewed. The sensors are classified in accordance with their operating principle: amplitude, interference, and polarization sensors are considered. Descriptions are given of the construction of the sensors (or of their sensitive elements) which can react to mechanical quantities (displacement, force, acceleration), acoustic vibrations and pressure, electric and magnetic fields, electric current, temperature, angular velocity, etc. Some of their principal characteristics are described. Important parameters of known sensors are presented in a classified reference table.

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Section: Controlled Coupling Of Waveguidesmentioning

confidence: 99%

Optical and fiber-optic sensors (review)

Бусурин¹,

Семенов²,

Udalov³

1985

Sov. J. Quantum Electron.

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“…A multi-mode interference [1][2][3][4] (MMI) waveguide has been widely researched and developed to realize an optical power coupler. Unlike a star-coupler 5,6) using a slab waveguide, 7) an MMI coupler exhibits superior coupling performance of equal intensity input light power. It has been widely developed for the field of optical communication.…”

Section: Introductionmentioning

confidence: 99%

Equal input, compact optical power coupler based on a nano-pixel structure designed with machine learning

Shoda

keiichirou

et al. 2022

Jpn. J. Appl. Phys.

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Multi-mode interference (MMI) waveguide has been widely researched and developed to realize optical power coupler. MMI coupler exhibits superior performance of the “Equal intensity coupling” characteristics, however, it has a problem that excess loss occurs if the phase matching condition is not satisfied at all of the input-ports. The phase condition depends on the number of input-ports, and relatively complicated phase-control is required, thus, it is desired to realize an optical power coupler without complicated phase adjustment. In order to avoid the phase-control difficulty, nano-pixel power coupler is investigated in this paper. Nano-pixel based coupler has a merit of ultra-compact dimension which is close to the wavelength order, therefore, it is expected that less excess-loss even under simple “equal” phase conditions. The structure was examined using FDTD and the simulated results show equal input (intensity and phase) coupling capabilities with a low excess loss of 0.11 dB.

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“…As shown in Fig. 1 (a), we consider that the atomic ensembles are trapped in each of the distant cavities connected by a 1 × N (N ≥ 3) single-mode integrated optical star coupler [49,50], where each atomic ensemble consists of M identical three-level atoms. The optical star coupler is made up of N identical optical fiber channels and only one resonant field mode interacts with the cavity mode which possesses the ability for present quantum information processing.…”

Section: Introductionmentioning

confidence: 99%

Distributed phase-covariant cloning with atomic ensembles via quantum Zeno dynamics

Shen

Yang

2012

Eur. Phys. J. D

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We propose an interesting scheme for distributed orbital state quantum cloning with atomic ensembles based on the quantum Zeno dynamics. These atomic ensembles which consist of identical three-level atoms are trapped in distant cavities connected by a single-mode integrated optical star coupler. These qubits can be manipulated through appropriate modulation of the coupling constants between atomic ensemble and classical field, and the cavity decay can be largely suppressed as the number of atoms in the ensemble qubits increases. The fidelity of each cloned qubit can be obtained with analytic result. The present scheme provides a new way to construct the quantum communication network.

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Single-mode integrated optical 1×N star coupler

Abstract: A new 1×N single-mode integrated optical star coupler is presented. Directional couplers with linearly changing spacing are utilized to optimize various loss aspects. The device is fabricated on glass substrates by Na+↔K+ ion exchange.

Cited by 39 publications

References 10 publications

Optical and fiber-optic sensors (review)

Optical and fiber-optic sensors (review)

Equal input, compact optical power coupler based on a nano-pixel structure designed with machine learning

Distributed phase-covariant cloning with atomic ensembles via quantum Zeno dynamics

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