Quasi-phase-matched second-harmonic generation in AlGaAs waveguides with periodic domain inversion achieved by wafer-bonding

Yoo, Sun-Kook; Bhat, R.; Caneau, C.; Koza, M.A.

doi:10.1063/1.113370

Cited by 143 publications

(62 citation statements)

References 1 publication

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“…The substrate of the flipped wafer is then etched off and ridge waveguides are formed by lithography. Yoo et al used this fabrication technique with AlGaAs waveguides to demonstrate SHG [31] and DFG [32].…”

Section: Quasi-phase Matchingmentioning

confidence: 99%

Recent advances in phase matching of second‐order nonlinearities in monolithic semiconductor waveguides

Helmy

Abolghasem

Aitchison

et al. 2010

Laser & Photonics Reviews

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Techniques used to assist phase matching of second-order nonlinearities in semiconductor waveguides are reviewed. The salient points of each method are highlighted, with their strengths and weaknesses with regard to various key applications discussed. Recent progress in these techniques is also reviewed. Emphasis is placed on two techniques, namely quasi-phase matching via domain disordering utilizing quantum well intermixing, and exact phase matching using Bragg reflection waveguides.The figure shows (a) An optical microscope image of an ion implantation mask used to fabricate gratings used for quasiphase matching, (b) a scanning electron micrograph of an ion implantation mask, (c) a scanning electron micrograph of a semiconductor ridge waveguide structure, and (d) an optical microscope image of group monolithic ring lasers designed for integration with quasiphase matched structures.

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Section: Quasi-phase Matchingmentioning

confidence: 99%

Recent advances in phase matching of second‐order nonlinearities in monolithic semiconductor waveguides

Helmy

Abolghasem

Aitchison

et al. 2010

Laser & Photonics Reviews

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show abstract

“…Epitaxial growth of orientation-patterned materials, with lithographically controlled patterns, has greatly opened the range of applicability of QPM. 53,58 In template controlled growth, a substrate is patterned lithographically such that the orientation of subsequently grown films is controlled by the pattern on the substrate. Multilayer, thin-film growth on such a template, for example, by molecular-beam epitaxy or organometallic vapor-phase epitaxy, can produce a QPM waveguide device, while thick-film growth on the template, for example, by hydride vapor-phase epitaxy, can produce a bulk (millimeter-thick) film for QPM interactions.…”

Section: Fundamentals Of Opomentioning

confidence: 99%

Developments of mid-infrared optical parametric oscillators for spectroscopic sensing: a review

Peng¹

2014

Opt. Eng

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Abstract. Optical parametric oscillator is an attractive way of generating tunable mid-infrared light in the spectral range where lasers simply do not exist-for the needs of spectroscopy, medical applications, remote sensing, etc. We will go through the fundamentals of the optical parametric oscillator first and then introduce the related new phase-matching, cavity design, and spectroscopic techniques.

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“…Since some of the electrical and optical properties of crystals, as well as their processing characteristics depend on the crystal orientation, wafer fusion gives an extra degree of freedom to fabricate new types of devices. For example, Yoo [9] has used wafer fusion to change the crystal orientation periodically to realize quasi-phase-matched second-harmonic generation (SHG).…”

Section: Push-pull Fused Vertical Coupler Switchmentioning

confidence: 99%

Push-pull fused vertical coupler switch

Liu

Shakouri

Abraham

et al. 1999

IEEE Photon. Technol. Lett.

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Abstract-A single-electrode push-pull fused vertical coupler (FVC) switch using macroscopic crystal inversion symmetry is demonstrated. The anisotropic linear electrooptic effect in a zincblende crystal is used to achieve optical switching under 12-V reverse bias for a 6.9-mm-long FVC whose two guiding layers have different crystal symmetries. No switching is observed for the identical structure in which the two guiding layers have the same crystal symmetry.Index Terms-Electrooptic effects, optical directional couplers, optical switches, water bonding.are very attractive candidates to make optical waveguide switches and narrowband filters because of their very short coupling length and the feasibility of integration with other optoelectronic devices. Generally, switching is achieved by introducing a phase mismatch between two waveguides through the electrooptic effect. In a push-pull operation, the introduction of positive and negative phase shifts in the two waveguides of the coupler reduces the driving voltage and chirping for switching. It is well known that the linear electrooptic effect is anisotropic [4], [5] in zinc-blende crystal structures. When the applied electric field is perpendicular to the (001) surface, it gives a positive index change for the TE-polarized light propagating along [110] direction and a negative index change for the light propagating along the [110] direction. In conventional epitaxial vertical couplers, the upper and lower waveguides have the same crystal orientation [see Fig. 1(b)]. Consequently push-pull operation requires the signs of the electric fields in the upper and lower waveguides to be opposite. This requires presence of a third electrode between waveguides and application of positive and negative biases to the upper and lower waveguides. The fabrication is difficult in conventional vertical couplers. Since the electrooptic effect is anisotropic, if one of the waveguides in the vertical couplers is along the [110] orientation and the other one along the [110] orientation [see Fig. 1(a)], then under an applied bias, the index changes in two waveguides have different signs. This simplifies the electrode fabrication and only requires one electrode for push-pull operation. In this letter, a vertical coupler

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Quasi-phase-matched second-harmonic generation in AlGaAs waveguides with periodic domain inversion achieved by wafer-bonding

Cited by 143 publications

References 1 publication

Recent advances in phase matching of second‐order nonlinearities in monolithic semiconductor waveguides

Recent advances in phase matching of second‐order nonlinearities in monolithic semiconductor waveguides

Developments of mid-infrared optical parametric oscillators for spectroscopic sensing: a review

Push-pull fused vertical coupler switch

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