Optimal design of coupling waveguide structure for adiabatic optical directional full couplers weighted by sin-square and raised-cosine functions

Chen, Chi Feng; Ku, Yun Sheng; Kung, Tsu Te

doi:10.1016/j.optcom.2007.08.005

Cited by 6 publications

(3 citation statements)

References 12 publications

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“…Two-waveguide couplers performing SAP were extensively investigated initially for microwaves [175][176][177] and later on for the optical regime [178][179][180][181][182][183][184]. Light propagation in coupled waveguides has also been considered as a classical system that allows simulating quantum dynamics.…”

Section: A Two Coupled Waveguidesmentioning

confidence: 99%

“…A particular case of this would be a SAP transfer between the two waveguides following one of the supermodes, analogous to a quantum-optical RAP process [14,15]. Two-waveguide couplers performing SAP were extensively investigated initially for microwaves [175][176][177] and later on for the optical regime [178][179][180][181][182][183][184]. Light propagation in coupled waveguides has also been considered as a classical system that allows simulating quantum dynamics.…”

Section: Two Coupled Waveguidesmentioning

confidence: 99%

See 1 more Smart Citation

Spatial adiabatic passage: a review of recent progress

Menchon-Enrich¹,

Benseny²,

Ahufinger³

et al. 2016

Rep. Prog. Phys.

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Adiabatic techniques are known to allow for engineering quantum states with high fidelity. This requirement is currently of large interest, as applications in quantum information require the preparation and manipulation of quantum states with minimal errors. Here we review recent progress on developing techniques for the preparation of spatial states through adiabatic passage, particularly focusing on three state systems. These techniques can be applied to matter waves in external potentials, such as cold atoms or electrons, and to classical waves in waveguides, such as light or sound. CONTENTS

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Section: A Two Coupled Waveguidesmentioning

confidence: 99%

Section: Two Coupled Waveguidesmentioning

confidence: 99%

Spatial adiabatic passage: a review of recent progress

Menchon-Enrich¹,

Benseny²,

Ahufinger³

et al. 2016

Rep. Prog. Phys.

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show abstract

“…Utilizing SSWF and RCWF for the variable width of the waveguide structure of MOCs, the coupling lengths/bandwidths were determined to be 6.25 mm/290 nm and 5.8 mm/ 220 nm, respectively, at a crosstalk of À35 dB. 10) Several studies showed the excellent effect of the application of BWF and HWF. 11,12) A BWF-weighted waveguide structure of MOCs can obtain a small coupling length of 3.6 mm and bandwidths within the C+L-band at a crosstalk of À35 dB.…”

Section: Introductionmentioning

confidence: 99%

New Weighting Function Designed for Low-Crosstalk, Small Length Mismatched Optical Coupler

Chen

2010

Jpn. J. Appl. Phys.

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A new weighting function we developed called the broadband weighting function is reported. It is numerically shown that excellent results are obtained compared with those obtained using the Blackman and Hamming weighting functions for application to the waveguide structure of mismatched optical couplers that satisty the demand for small length, C+L-band, and low crosstalk level. It is found that a coupler with a coupling length of 2.5 mm and a crosstalk of -35 dB can reach bandwidths within 1.360–1.700 µm. Using the same crosstalk and a coupling length of 3.7 mm, the broadband-weighting-function-weighted mismatched optical couplers can achieve broader bandwidths within 1.230–1.700 µm. Considering the tolerances of structure parameters, the coupler with a coupling length of 3.4 mm which is much smaller than those obtained using the Blackman and Hamming weighting functions (namely, 5.0 and 4.9 mm, respectively) satisfies the demands for the C+L-band and a crosstalk level of -35 dB.

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Short-length and broadband mismatched optical couplers with tapered Hamming function for C- and L-band

Chen

Shauo

et al. 2010

Optik

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Optimal design of coupling waveguide structure for adiabatic optical directional full couplers weighted by sin-square and raised-cosine functions

Cited by 6 publications

References 12 publications

Spatial adiabatic passage: a review of recent progress

Spatial adiabatic passage: a review of recent progress

New Weighting Function Designed for Low-Crosstalk, Small Length Mismatched Optical Coupler

Short-length and broadband mismatched optical couplers with tapered Hamming function for C- and L-band

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