Quantum frequency combs from chip-scale integrated sources are promising candidates for scalable and robust quantum information processing (QIP).However, to use these domain QIP, demonstration of entanglement in the basis, showing that entangled photons a coherent superposition multiple bins, is required.We present verification qubit qutrit frequency-bin using an on-chip comb with 40 mode pairs, through two-photon interference measurement based on electro-optic phase modulation.Our...

We report the experimental realization of high-fidelity photonic quantum gates for frequency-encoded qubits and qutrits based on electro-optic modulation Fourier-transform pulse shaping. Our frequency version Hadamard gate offers near-unity fidelity ($0.99998\ifmmode\pm\else\textpm\fi{}0.00003$), requires only a single microwave drive tone near-ideal performance, functions across entire $C$ band (1530--1570 nm), can operate concurrently multiple spaced as tightly four modes apart, with no...

We investigate the time-frequency signatures of an on-chip biphoton frequency comb (BFC) generated from a silicon nitride microring resonator.Using Franson interferometer, we examine, for first time, multifrequency nature photon pair source in time entanglement measurement scheme; having multiple modes BFC results modulation interference pattern.This together with Schmidt mode decomposition shows that continuous variable energy-time entangled state spans pair-wise modes.Additionally,...

The probabilistic nature of single-photon sources and photon-photon interactions encourages encoding as much quantum information possible in every photon for the purpose photonic processing. Here, by high-dimensional units (qudits) time frequency degrees freedom using on-chip sources, we report deterministic two-qudit gates a single with fidelities exceeding 0.90 computational basis. Constructing modulo SUM gate, generate measure state non-separability between qudits. We then employ this...

We demonstrate a two-photon interference experiment for phase coherent biphoton frequency combs (BFCs), created through spectral amplitude filtering of biphotons with continuous broadband spectrum. By using an electro-optic modulator, we project the BFC lines into sidebands that overlap in frequency. The resulting high-visibility patterns provide approach to verify frequency-bin entanglement even slow single-photon detectors; show visibilities surpass classical threshold qubit and qutrit...

The Hong-Ou-Mandel (HOM) interference is one of the most fundamental quantum-mechanical effects that reveal a nonclassical behavior single photons. Two identical photons are incident on input ports an unbiased beam splitter always exit together from same output port, effect referred to as photon bunching. In this Letter, we utilize electro-optic phase modulator probabilistic frequency splitter, which exploit observe HOM between two in different spectral modes, yet other characteristics. Our...

We demonstrate the generation of two-photon correlation trains based on spectral filtering broadband biphotons. Programmable amplitude is employed to create biphoton frequency combs, which when coupled with optical dispersion allows us experimentally verify temporal Talbot effect for entangled photons. Additionally, an alternative phase-filtering approach shown significantly improve overall efficiency process a comb-like spectrum not required. Our technique ideal creation tunable and...

We demonstrate a new biphoton manipulation and characterization technique based on electro-optic intensity modulation time shifting. By applying fast signals with sharply peaked cross-correlation to each photon from an entangled pair, it is possible measure temporal correlations significantly higher precision than that attainable using standard single-photon detection. Low-duty-cycle pulses maximal-length sequences are considered as functions, reducing the spread in our correlation...

We propose and demonstrate a novel approach for controlling the temporal position of biphoton correlation function using pump frequency tuning dispersion cancellation; precise waveguide engineering enables generation at different frequencies while idea nonlocal cancellation is used to create relative signal-idler delay simultaneously prevents broadening their correlation. Experimental results shifts up ±15 times width are shown along with discussions performance metrics this approach.

Frequency-to-time mapping (FTM) is a technique used to mirror the spectral shape of an optical waveform in time domain. The regular approach, based on far-field condition, requires large amounts dispersion for successful mapping. However, when condition insurmountable achieving desired temporal profile, another technique, termed near-field FTM, can be employed assist with For first time, we demonstrate shaper-assisted FTM using entangled photon pairs. By pre-modifying two-photon amplitude...

For the first time, we present a verification of frequency-bin entanglement and phase coherence an on-chip biphoton frequency comb through novel two-photon interference measurement scheme estimation density matrix.

We present a novel approach to demonstrate coherence between different bins of frequency-bin entangled photon-pair. The observed interference patterns provide simple way verify entanglement using slow single-photon detectors.

The realization of high-speed tunable delay control has received significant attention in the scene classical photonics. In quantum optics, however, such rapid systems for entangled photons have remained undeveloped. Here first time, we demonstrate (2.5 MHz) modulation signal-idler arrival times through electro-optic pump frequency modulation. Our technique applies phenomenon nonlocal dispersion cancellation along with tuning to relative between photon pairs. Chirped fiber Bragg gratings are...

We report a comb-like frequency-bin entangled photon pair source with high coincidence to accidental ratio in silicon nitride microring resonator. measured Schmidt number of 4.0, thus verifying degree time-frequency entanglement.

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text P. Imany, O. D. Odele, J. A. Jaramillo-Villegas, M. Qi, E. Leaird, and Weiner, "Coherent quantum control of on-chip time-frequency entangled photons," in Conference Lasers Electro-Optics, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper JW2A.25. Export BibTex Endnote (RIS) HTML Plain alert Save article

We demonstrate deterministic two-qudit gates using the time and frequency degrees of freedom a single photon, showing potential our scheme for quantum computing in high-dimensional Hilbert spaces.

We describe and demonstrate a novel approach for controlling the temporal position of biphoton correlation by pump frequency tuning. Our method relies on precise waveguide engineering as well nonlocal dispersion cancellation effect.

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text O. D. Odele, J. M. Lukens, C. Langrock, Fejer, E. Leaird, and A. Weiner, "Observation of the temporal Talbot effect for entangled photons," in Frontiers Optics 2014, OSA Technical Digest (online) (Optica Publishing Group, 2014), paper FW2C.2. Export BibTex Endnote (RIS) HTML Plain alert Save article

We report a comb-like photon pair source with high Coincidence to Accidental Ratio (CAR) in silicon nitride microring resonator. are able generate up 10 sideband pairs free spectral range of 378 GHz. characterized the time and frequency correlations between th1ese sidebands via joint intensity measurement. Additionally, we mapped into by applying dispersion chirped fiber Bragg grating.

We demonstrate delay modulation of entangled photons over a full 32-ns span, utilizing pump frequency tuning and ultralong fiber Bragg gratings. Electro-optic modulators enable time-bin switching rates as fast 2.5 MHz.

We propose and demonstrate a new method for temporal characterization of entangled photons based on electro-optic modulation time shifting. Our technique reduces the resolution limits induced by large timing jitters in single-photon detectors.

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text P. Imany, J. A. Jaramillo-Villegas, O. D. Odele, K. Han, M. Qi, E. Leaird, and Weiner, "Frequency-bin entangled qutrits in an on-chip microresonator," Frontiers Optics 2017, OSA Technical Digest (online) (Optica Publishing Group, 2017), paper FTh3E.3. Export BibTex Endnote (RIS) HTML Plain alert Save article