Phase matching using Bragg reflection waveguides for monolithic nonlinear optics applications

As, Helmy

doi:10.1364/oe.14.001243

Cited by 78 publications

(50 citation statements)

References 24 publications

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“…In the context of phase matching, the ability of BRWs to support essentially lossless bound modes with effective indices lower than any of the material indices will be utilized for the SH wave to compensate for material dispersion [14]. Strictly speaking, the BRW requires an infinite number of cladding pe- riods to have zero loss, but as will be shown further, with proper design suitably low loss can be achieved with just a few periods.…”

Section: Brwsmentioning

confidence: 99%

“…Such methods generally suffer from difficulty in monolithic integration with other active and passive components, or large insertion loss due to scattering. In this work, we analyze in detail a means which was proposed recently to achieve phase matching through the use of a novel waveguide design [14]. The technique is material independent and requires no patterning in the direction of propagation, which will significantly lower the insertion loss.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and design equations for phase matching using Bragg reflector waveguides

West

Helmy

2006

IEEE J. Select. Topics Quantum Electron.

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Abstract-In this paper, we introduce and analyze a novel waveguide design to provide phase matching for nonlinear optical processes. Phase matching is achieved by designing the structure to guide the fundamental frequency by total internal reflection and the second harmonic (SH) frequency by transverse Bragg reflection. By forcing the SH mode to operate in the middle of the Bragg stopband, we solve for the waveguide dimensions for arbitrary waveguide materials, given the material dispersion between the fundamental and SH frequencies. Using GaAs-AlGaAs as an example, we analytically investigate and quantify properties such as nonlinear coupling efficiency, bandwidth, tunability, and limitations due to dispersion. The technique shows tremendous promise when compared to alternate technologies, where it is particularly attractive as an effective means to obtain ultralow-loss nonlinear optical elements for monolithic integration with coherent light sources and other active devices.

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Section: Brwsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis and design equations for phase matching using Bragg reflector waveguides

West

Helmy

2006

IEEE J. Select. Topics Quantum Electron.

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“…Our device has been optimized for efficient type-II spontaneous parametric downconversion (SPDC); two Bragg mirrors provide both a photonic bandgap confinement for a transverse electric (TE) Bragg mode at 783 nm [25,26] and total internal reflection claddings for TE 00 and TM 00 modes at 1.56 μm. The sample is grown by molecular beam epitaxy on a (100) GaAs substrate.…”

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confidence: 99%

Integrated AlGaAs source of highly indistinguishable and energy-time entangled photons

Autebert¹,

Bruno²,

Martin³

et al. 2016

Optica

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The generation of nonclassical states of light in miniature chips is a crucial step toward practical implementations of future quantum technologies. Semiconductor materials are ideal for achieving extremely compact and massively parallel systems and several platforms are currently under development. In this context, spontaneous parametric downconversion in AlGaAs devices combines the advantages of room temperature operation, possibility of electrical injection, and emission in the telecom band. Here we report on a chip-based AlGaAs source, producing indistinguishable and energy-time entangled photons with a brightness of 7.2×106 pairs/s and a signal-to-noise ratio of 141±12. Indistinguishability between the photons is demonstrated via a Hong–Ou–Mandel experiment with a visibility of 89±3%, mainly limited by the reflectivity of the chip facets, while energy-time entanglement is tested via a Franson interferometer leading to a visibility of 96±4

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“…These structures can be integrated with both active and passive photonic components. Various strategies have been developed to achieve phase matching (PM) in AlGaAs waveguides [14,15]: QPM [16][17][18], form birefringence [19,20], modal phase matching (MPM) [21], counterpropagating modes [22], and the use of Bragg reflection waveguides (BRWs) [23,24]. Techniques to generate polarization entangled photons in AlGaAs waveguides have been theoretically developed [25][26][27] as well as experimentally demonstrated [22,28,29].…”

Section: Introductionmentioning

confidence: 99%

Hyperentangled photon sources in semiconductor waveguides

et al. 2014

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We propose and analyze the performance of a technique to generate mode and polarization hyperentangled photons in monolithic semiconductor waveguides using two concurrent type-II spontaneous parametric downconversion (SPDC) processes. These two SPDC processes are achieved by waveguide engineering which allows for simultaneous modal phase matching with the pump beam in a higher-order mode. Paired photons generated in each process are cross polarized and guided by different guiding mechanisms, which produces entanglement in both polarization and spatial mode. Theoretical analysis shows that the output quantum state has a high quality of hyperentanglement by spectral filtering with a bandwidth of a few nanometers, while off-chip compensation is not needed. This technique offers a path to realize an electrically pumped hyperentangled photon source.

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Phase matching using Bragg reflection waveguides for monolithic nonlinear optics applications

Cited by 78 publications

References 24 publications

Analysis and design equations for phase matching using Bragg reflector waveguides

Analysis and design equations for phase matching using Bragg reflector waveguides

Integrated AlGaAs source of highly indistinguishable and energy-time entangled photons

Hyperentangled photon sources in semiconductor waveguides

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