Type-II quasi phase matching in periodically intermixed semiconductor superlattice waveguides

Hutchings, D. C.; Wagner, Sean J.; Holmes, B. M.; Younis, Usman; Helmy, Amr S.; Aitchison, J. S.

doi:10.1364/ol.35.001299

Cited by 12 publications

(20 citation statements)

References 10 publications

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“…This is four times lower than in the type-I measurements, which is commensurate with similar trends observed in SHG experiments [15]. The internal input pump power was 31.3 mW, and the internal input signal power was 51.7 mW.…”

Section: Optical Measurementssupporting

confidence: 89%

“…It consisted of a 600 nm thick core layer of 14:14 monolayer GaAs/Al 0.85 Ga 0. 15 As superlattice. On either side were 300 nm thick buffer layers of Al 0.56 Ga 0.44 As and 800 nm thick Al 0.60 Ga 0.40 As cladding layers.…”

Section: Sample Fabricationmentioning

confidence: 99%

“…A 1.0 µm thick base layer of Al 0.85 Ga 0. 15 As was added below the lower cladding layer to isolate the optical modes from the substrate. All layers were grown on a semi-insulating GaAs substrate by molecular beam epitaxy.…”

Section: Sample Fabricationmentioning

confidence: 99%

“…Measurements were carried out using the ∼2 ps pulsed setup described in [15], which consisted of an optical parametric oscillator pumped by a modelocked Ti:sapphire laser. The phase matching wavelengths at which SHG efficiency was highest were measured for various QPM grating periods and are shown in Figure 4.…”

Section: Optical Measurementsmentioning

confidence: 99%

“…Theoretical calculations from the superlattice electronic band structure have predicted that a large modulation in χ (2) of up to 100 pm/V can be obtained using this approach [13]. Using DD-QPM waveguides, we have demonstrated continuous-wave second-harmonic generation (SHG) [14] and type-II phase matched SHG [15]. In this paper, we report on difference frequency generation with GaAs/AlGaAs superlattice-core domain-disordered quasiphase matching waveguides.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Difference Frequency Generation by Quasi-Phase Matching in Periodically Intermixed Semiconductor Superlattice Waveguides

Wagner

Holmes

Younis

et al. 2011

IEEE J. Quantum Electron.

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Abstract-Wavelength conversion by difference frequency generation is demonstrated in domain-disordered quasi-phase matched waveguides. The waveguide structure consisted of a GaAs/AlGaAs superlattice core that was periodically intermixed by ion-implantation. For quasi-phase matching periods of 3.0-3.8 µm, degeneracy pump wavelengths were found by secondharmonic generation experiments for fundamental wavelengths between 1520-1620 nm in both type-I and type-II configurations. In the difference frequency generation experiments, output powers up to 8.7 nW were generated for the type-I phase matching interaction, and 1.9 nW for the type-II interaction. The conversion bandwidth was measured to be over 100 nm covering the C, L, and U optical communications bands, which agrees with predictions.

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Section: Optical Measurementssupporting

confidence: 89%

Section: Sample Fabricationmentioning

confidence: 99%

Section: Sample Fabricationmentioning

confidence: 99%

Section: Optical Measurementsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Difference Frequency Generation by Quasi-Phase Matching in Periodically Intermixed Semiconductor Superlattice Waveguides

Wagner

Holmes

Younis

et al. 2011

IEEE J. Quantum Electron.

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Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip

Sarrafi

Zhu

Dolgaleva

et al. 2013

Applied Physics Letters

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Engineered phase matching for broad frequency-tunability in terahertz-wave generation from quasi-phase-matched GaP devices

Tomita

2015

Journal of Applied Physics

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A method to obtain broad frequency-tunability in terahertz (THz)-wave generation is proposed using a quasi-phase-matched GaP device that originally has narrow frequency-tunability. In this method, the phase matching curve for the GaP device is engineered via the GaP dispersion relation by shifting the signal frequency to 333.1 THz (0.90 lm) so that a flat part (i.e., a frequencyindependent part) can be formed on the phase matching curve. By selecting an appropriate quasiphase matching (QPM) period K such that QPM occurs at the center of the flat part of the curve, we can obtain a frequency-tunable width of 1.34 THz (37.8 lm) at around a THz-wave frequency of 3.26 THz (92.0 lm). This width is 9.9 times wider than that obtained using a similar quasiphase-matched GaP device at a signal frequency of 193.5 THz (1.55 lm) without the reformed phase matching curve. The advantage of the proposed method is that, unlike a previous method that used a chirped v (2) grating, broad frequency-tunability is obtained without reducing the high conversion efficiency produced by QPM. For comparison, a reduction in the conversion efficiency for the chirped v (2) grating method is demonstrated when a 9.9 times wider frequency-tunable width is achieved. V C 2015 AIP Publishing LLC. [http://dx.

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Type-II quasi phase matching in periodically intermixed semiconductor superlattice waveguides

Cited by 12 publications

References 10 publications

Difference Frequency Generation by Quasi-Phase Matching in Periodically Intermixed Semiconductor Superlattice Waveguides

Difference Frequency Generation by Quasi-Phase Matching in Periodically Intermixed Semiconductor Superlattice Waveguides

Continuous-wave quasi-phase-matched waveguide correlated photon pair source on a III–V chip

Engineered phase matching for broad frequency-tunability in terahertz-wave generation from quasi-phase-matched GaP devices

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