Fabrication of ultracompact 3-dB 2 x 2 MMI power splitters

Lévy, David; Park, Kyung Hyun; Scarmozzino, R.; Osgood, Richard M.; Dries, Christopher; Studenkov, P.; Forrest, Stephen R.

doi:10.1109/68.775329

Cited by 57 publications

(21 citation statements)

References 6 publications

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“…Furthermore, the heterodyne mixing yields enhancement of signal and dynamic range. This heterodyne interferometric method will give detailed information on the operation of many (novel) photonic structures: phasars [1], [2], MMIs [3], [4], microcavities [9], [10], photonic crystals [6]- [8], etc., in which the phase of light is crucial.…”

Section: Discussionmentioning

confidence: 99%

“…A number of theoretical papers have presented algebraic formulas that describe the phase of the output channels of phasars [1] and MMIs [13]. The phase of the output channels of MMI splitters [3] and semiconductor laser arrays [4] has recently been confirmed experimentally, using a shearing-type ring interferometer. Nevertheless, a method to measure not only the phase of the output channels but also the phase evolution of the light inside these structures with subwavelength resolution is still missing.…”

mentioning

confidence: 99%

“…Phasars are important components within wavelength-selective switches, such as optical crossconnects and add-drop multiplexers, multiwavelength receivers, and lasers. MMIs are important components within integrated optical circuits requiring power splitters, such as ring lasers, Mach-Zehnder interferometers, couplers, and optical switches [4].…”

mentioning

confidence: 99%

“…HASARS [1], [2] and multimode interference (MMI)-based devices [3], [4] play a key role in wavelength division multiplexing (WDM) telecommunication networks. Phasars are important components within wavelength-selective switches, such as optical crossconnects and add-drop multiplexers, multiwavelength receivers, and lasers.…”

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confidence: 99%

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Phase mapping of optical fields in integrated optical waveguide structures

Balistreri

Korterik

Kiupers

et al. 2001

J. Lightwave Technol.

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Abstract-The phase evolution of optical waves in a waveguide structure has been studied with a heterodyne interferometric photon scanning tunneling microscope. Both phase and amplitude of the local optical field are measured with subwavelength resolution. Topographical maps of the waveguide surface are obtained simultaneously with the optical information. Unexpected phase patterns, with phase jumps and phase singularities, have been observed. The phase patterns can be fully understood by taking into account the total field that is the sum of the optical fields of the various modes. We show that with the unique spatial phase information, the relative field profiles and wave vectors of all the excited modes in a multimodal waveguide structure can be determined independently.Index Terms-Microscopy, optical imaging, optical interferometry, optical planar waveguides, phase measurement.

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Phase mapping of optical fields in integrated optical waveguide structures

Balistreri

Korterik

Kiupers

et al. 2001

J. Lightwave Technol.

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“…Such tapered MMI couplers based on InP-InGaAsP and silicon-on-insulator (SOI) waveguides *Corresponding author. Email: w9513110@yahoo.com.cn have been realized [4][5][6][7]. The benefits and drawbacks of the use of the parabolically tapered-in MMI devices, in comparison with the straight MMI devices, have also been investigated [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

A2×2multimode interference coupler with exponentially tapered waveguide

Wu¹,

Shi²,

Kong³

2007

Journal of Modern Optics

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An exponentially tapered structure is introduced into multimode interference (MMI) devices. Compared with a parabolically tapered structure, which has been successfully used in MMI devices, this structure can further reduce the length of these devices. The performances of the 2Â2 MMI coupler with exponentially tapered structure, such as the optical transmission, the splitting ratio, the wavelength response and the fabrication tolerance, are investigated by the 2D finite difference beam propagation method. Results show that the exponentially tapered MMI coupler exhibits a similar property to that with a parabolically tapered structure except for the splitting ratio. The exponentially tapered structure can offer a possible application in MMI couplers with a free choice of the splitting ratio.

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Materials for PICs

Osgood

Meng

2021

Graduate Texts in Physics

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Fabrication of ultracompact 3-dB 2 x 2 MMI power splitters

Cited by 57 publications

References 6 publications

Phase mapping of optical fields in integrated optical waveguide structures

Phase mapping of optical fields in integrated optical waveguide structures

A2×2multimode interference coupler with exponentially tapered waveguide

Materials for PICs

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