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Search Publications by: Paulina Kuo (Fed)

Displaying 26 - 50 of 87

Using silica-fiber coupling to extend superconducting nanowire single-photon detectors into the infrared

November 30, 2018

Author(s)

Paulina S. Kuo

There is growing interest in superconducting nanowire single-photon detectors (SNSPDs) for their high detection efficiency, low noise, and broad wavelength-sensitivity range. Typically, silica fibers are used to deliver light to the detectors inside the

Mixing of Polarization States in Zincblende Nonlinear Optical Crystals

October 2, 2018

Author(s)

Paulina S. Kuo, M. M. Fejer

We describe second-order nonlinear optical mixing in non-birefringent, zincblende-structure materials that can be quasi-phasematched. Lack of birefringence and quasi-phasematching together allow efficient nonlinear mixing between diverse polarization

Towards extending super-conducting nanowire single-photon detectors into the infrared wavelength range

September 16, 2018

Author(s)

Paulina S. Kuo, Brian G. Alberding

Using Temperature to Reduce Noise in Quantum Frequency Conversion

May 12, 2018

Author(s)

Paulina 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 reduction in dark count rates that agrees well with theory.

Using Temperature to Reduce Noise in Quantum Frequency Conversion

April 23, 2018

Author(s)

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 communication using telecommunications wavelengths. Unfortunately, frequency conversion in actual

Spectral correlation and interference in continuous-wave non-degenerate photon pairs at telecom wavelengths

March 14, 2017

Author(s)

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 idler photons at 1533 nm and 1567 nm. We characterized the spectral correlations of the generated

Spectral correlation and interference in non-degenerate photon pairs at telecom wavelengths

October 31, 2016

Author(s)

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. By erasing the polarization distinguishability, we observe interference between the two down

Spectral correlation and interference in CW non-degenerate photon pairs at telecom wavelengths

June 5, 2016

Author(s)

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 interference with unequal biphoton arrival times at the beamsplitter.

Characterization of type-II spontaneous parametric down-conversion in domain-engineered PPLN

March 15, 2016

Author(s)

Paulina S. Kuo, Thomas Gerrits, Varun B. Verma, Sae Woo Nam, Oliver T. Slattery, Lijun Ma, Xiao Tang

Comparing the Linewidths from Single-Pass SPDC and Singly-Resonant Cavity SPDC

September 3, 2015

Author(s)

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 photon linewidth is a critical issue for photon-atom interactions in quantum memory applications. We

EIT Quantum Memory with Cs Atomic Vapor for Quantum Communication

September 1, 2015

Author(s)

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 based on electromagnetically-induced transparency (EIT) in a warm cesium atomic cell. The quantum

Narrow linewidth source of greatly non-degenerate photon pairs for quantum repeaters from a short singly-resonant cavity

August 26, 2015

Author(s)

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 wavelengths and linewidths for quantum memories. We have experimentally implemented a narrow linewidth

Polarization-entangled photons from domain-engineered, periodically poled LiNbO3

June 9, 2014

Author(s)

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 spontaneous parametric down-conversion.