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Entangled photons produced by parametric down-conversion effectively have two down-conversion paths. Ideally, amplitudes of the two paths are matched.We show
Paulina S. Kuo, Peter G. Schunemann, Mackenzie Van Camp, Varun B. Verma, Thomas Gerrits, Sae Woo Nam, Richard P. Mirin
We investigate parametric down-conversion in orientation-patterned GaP. Pumped at 865 nm, the signal and idler are at 1350 nm and 2400 nm, respectively.
Paulina S. Kuo, Varun B. Verma, Thomas Gerrits, Sae Woo Nam, Richard P. Mirin
Using a periodically poled LiNbO3 crystal that is domain-engineered for two simultaneous type-II down-conversion processes, we demonstrated polarization
There is growing interest in superconducting nanowire single-photon detectors (SNSPDs) for their high detection efficiency, low noise, and broad wavelength
We describe second-order nonlinear optical mixing in non-birefringent, zincblende-structure materials that can be quasi-phasematched. Lack of birefringence and
Paulina S. Kuo, Jason S. Pelc, Carsten Langrock, M. M. Fejer
A main source of noise in quantum frequency conversion is spontaneous Raman scattering, which can be reduced by lowering the operating temperature. We show
Paulina S. Kuo, Jason S. Pelc, Carsten Langrock, M. M. Fejer
Quantum frequency conversion (QFC) is important in quantum networks to interface nodes operating at different wavelengths and to enable long-distance quantum
Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam
We have developed an entangled photon pair source based on a domain-engineered, type-II periodically poled lithium niobate crystal that produces signal and
Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam
We characterize an entangled-photon-pair source that produces signal and idler photons at 1533 nm and 1567 nm using fiber-assisted signal-photon spectroscopy
Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam, Oliver T. Slattery, Lijun Ma, Xiao Tang
We apply single-photon, fiber-assisted spectroscopy to characterize photon-pair generation with CW pumping. Using this spectrometer, we observe biphoton
Oliver T. Slattery, Lijun Ma, Paulina S. Kuo, Xiao Tang
Spontaneous parametric down-conversion (SPDC) is a common method to generate entangled photon pairs for use in quantum communications. The generated single
Lijun Ma, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
Quantum memory is a key device in the implementation of quantum repeaters for quantum communications and quantum networks. We demonstrated a quantum memory
Oliver T. Slattery, Paulina S. Kuo, Lijun Ma, Xiao Tang
Quantum repeaters require entangled photon pair sources to connect flying qubits in the telecommunication band and stationary qubits at atomic transition
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Lijun Ma, Xiao Tang
Using a domain-engineered, periodically poled LiNbO3 grating, we investigate polarization-entangled photon-pair generation near 1550 nm wavelength using type-II
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Lijun Ma, Xiao Tang
We describe the design and application of domain-engineered periodically poled lithium niobate (PPLN) for use as a source of entangled photons and for other
The 4-bar crystal symmetry in materials such as GaAs can enable quasi-phasematching for efficient optical frequency conversion without poling, twinning or other
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Yong-Su Kim, Xiao Tang
We propose a scheme to generate polarization-entangled photon pairs by spontaneous parametric downconversion in a phase-modulated, type-II, quasi-phasematched
Yong-Su Kim, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
We report two-photon interference with continuous-wave multi-mode coherent light. We show that the two-photon interference, in terms of the detection time
Yong-Su Kim, Oliver T. Slattery, Paulina S. Kuo, Xiao Tang
We report experiments on two-photon interference between temporally non-overlapping weak coherent pulses. While the single-photon interference is washed out
Paulina S. Kuo, Jason S. Pelc, Oliver T. Slattery, Yong-Su Kim, M. M. Fejer, Xiao Tang
We demonstrate simultaneous low-noise and efficient frequency conversion in a periodically poled LiNbO3 waveguide with spectral filtering. We achieve >50%