Ultra-Short Pulse Biphoton Source in Lithium Niobate Nanophotonics at 2$\textμ$m

• URL: http://arxiv.org/abs/2402.05163v2
• Date: Mon, 10 Jun 2024 02:48:19 GMT
• Title: Ultra-Short Pulse Biphoton Source in Lithium Niobate Nanophotonics at 2$\textμ$m
• Authors: James Williams, Rajveer Nehra, Elina Sendonaris, Luis Ledezma, Robert M. Gray, Ryoto Sekine, Alireza Marandi,
• Abstract summary: Photonics offers unique capabilities for quantum information processing (QIP) Ultrashort-second-pulse sources of quantum states in nanophotonics are an important building block for achieving scalable ultrafast QIP. Here, we demonstrate a femto biphoton source in dispersion-engineered periodically poled lithium niobate nanophotonics.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Photonics offers unique capabilities for quantum information processing (QIP) such as room-temperature operation, the scalability of nanophotonics, and access to ultrabroad bandwidths and consequently ultrafast operation. Ultrashort-pulse sources of quantum states in nanophotonics are an important building block for achieving scalable ultrafast QIP, however, their demonstrations so far have been sparse. Here, we demonstrate a femtosecond biphoton source in dispersion-engineered periodically poled lithium niobate nanophotonics. We measure 17 THz of bandwidth for the source centered at 2.09 \textmu m, corresponding to a few optical cycles, with a brightness of 8.8 GHz/mW. Our results open new paths towards realization of ultrafast nanophotonic QIP.

Related papers

• Ultrafast single-photon detection using nanophotonic parametric amplifiers [0.0]
  Single photon detectors have been the subject of intense study due to their ubiquity in nanophotonic platforms. We propose and demonstrate a single photon detection scheme based on optical parametric amplification in nanophotonic lithium niobate (LN) combined with a classical photodetector. We show that by improving the nonlinearity-to-loss ratio in nanophotonics and using homodyne detection on a squeezed pump, the detector can achieve 69% efficiency with 0.9% dark count rate.
  arXiv  Detail & Related papers  (2024-10-24T03:19:20Z)
• All-optical modulation with single-photons using electron avalanche [69.65384453064829]
  We demonstrate all-optical modulation using a beam with single-photon intensity. Our approach opens up the possibility of terahertz-speed optical switching at the single-photon level.
  arXiv  Detail & Related papers  (2023-12-18T20:14:15Z)
• Integrated Quantum Optical Phase Sensor [48.7576911714538]
  We present a photonic integrated circuit fabricated in thin-film lithium niobate. We use the second-order nonlinearity to produce a squeezed state at the same frequency as the pump light and realize circuit control and sensing with electro-optics. We anticipate that on-chip photonic systems like this, which operate with low power and integrate all of the needed functionality on a single die, will open new opportunities for quantum optical sensing.
  arXiv  Detail & Related papers  (2022-12-19T18:46:33Z)
• High-speed thin-film lithium niobate quantum processor driven by a solid-state quantum emitter [2.308881946683637]
  We develop an integrated photonic platform based on thin-film lithium niobate. We interface it with deterministic solid-state single-photon sources based on quantum dots in nanophotonic waveguides. We realize a variety of key photonic quantum information processing functionalities with the high-speed circuits.
  arXiv  Detail & Related papers  (2022-11-10T17:15:08Z)
• On-chip quantum information processing with distinguishable photons [55.41644538483948]
  Multi-photon interference is at the heart of photonic quantum technologies. Here, we experimentally demonstrate that detection can be implemented with a temporal resolution sufficient to interfere photons detuned on the scales necessary for cavity-based integrated photon sources. We show how time-resolved detection of non-ideal photons can be used to improve the fidelity of an entangling operation and to mitigate the reduction of computational complexity in boson sampling experiments.
  arXiv  Detail & Related papers  (2022-10-14T18:16:49Z)
• Ultrabright and narrowband intra-fiber biphoton source at ultralow pump power [51.961447341691]
  Nonclassical photon sources of high brightness are key components of quantum communication technologies. We here demonstrate the generation of narrowband, nonclassical photon pairs by employing spontaneous four-wave mixing in an optically-dense ensemble of cold atoms within a hollow-core fiber.
  arXiv  Detail & Related papers  (2022-08-10T09:04:15Z)
• Few-cycle vacuum squeezing in nanophotonics [0.0]
  One of the most fundamental quantum states of light is squeezed vacuum, in which noise in one of the quadratures is less than the standard quantum noise limit. We generate a squeezed state spanning over more than 25 THz of bandwidth supporting only a few optical cycles. This level of squeezing surpasses the requirements for a wide range of quantum information systems.
  arXiv  Detail & Related papers  (2022-01-18T06:50:40Z)
• Room temperature single-photon emitters in silicon nitride [97.75917079876487]
  We report on the first-time observation of room-temperature single-photon emitters in silicon nitride (SiN) films grown on silicon dioxide substrates. As SiN has recently emerged as one of the most promising materials for integrated quantum photonics, the proposed platform is suitable for scalable fabrication of quantum on-chip devices.
  arXiv  Detail & Related papers  (2021-04-16T14:20:11Z)
• Efficient Generation of Subnatural-Linewidth Biphotons by Controlled Quantum Interference [0.9877468274612591]
  Biphotons of narrow bandwidth and long temporal length play a crucial role in long-distance quantum communication. By manipulating the two-component biphoton wavefunction, we demonstrate biphotons with subnatural linewidth in the sub-MHz regime. Our work has potential applications in realizing quantum repeaters and large cluster states for LDQC and LOQC.
  arXiv  Detail & Related papers  (2020-09-09T02:39:50Z)
• Near-ideal spontaneous photon sources in silicon quantum photonics [55.41644538483948]
  Integrated photonics is a robust platform for quantum information processing. Sources of single photons that are highly indistinguishable and pure, that are either near-deterministic or heralded with high efficiency, have been elusive. Here, we demonstrate on-chip photon sources that simultaneously meet each of these requirements.
  arXiv  Detail & Related papers  (2020-05-19T16:46:44Z)
• Highly photo-stable Perovskite nanocubes: towards integrated single photon sources based on tapered nanofibers [0.0]
  We present a full analysis of the optical and quantum properties of highly efficient perovskite nanocubes synthesized with an established method. We achieve for the first time the coupling of a single perovskite nanocube with a tapered optical nanofiber in order to aim for a compact integrated single photon source for future applications.
  arXiv  Detail & Related papers  (2020-05-19T11:03:21Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.