Generation of a pulsed polarization entangled photon pair using a Sagnac interferometer
Abstract
In this paper, we report on a scheme to generate a pulsed polarization entangled photon pair through the use of a Sagnac interferometer. To demonstrate its workability, we experimentally obtained two-photon quantum interference for the polarization variable. The main advantage of this scheme is its exceptional stability, compared to other schemes based on the interferometric technique. It does not need any active or passive techniques to stabilize the interferometer, even the instrument is exposed to a relatively turbulent environment.
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Sagnac-based sources, because of their stability and high rate, have been used in quantum optical experiments including quantum key distribution and nonclassical radiation sources.
“Among the different configurations of interferometers, in recent decades, the Sagnac-based sources because of their stability and high rate have been used in quantum optical experiments in a variety range of application such as quantum key distribution (QKD) [43], [69] and nonclassical radiation sources [70], [71], [72], [73].”
From Nonlocal realism tests and quantum state tomography in Sagnac-based type-II polarization-entanglement SPDC-source (2021) · cites this paper as [70]
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A wavelength-tunable fiber-coupled source of narrowband entangled photons
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Phase-stable source of polarization-entangled photons using a polarization Sagnac interferometer
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Pulsed Sagnac polarization-entangled photon source with a PPKTP crystal at telecom wavelength
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- Authors
- Shi, B.-S., & Tomita, A.
- Affiliations
- NEC (Japan) (JP)
- Venue
- Physical Review A
- Publisher
- American Physical Society (APS)
- Published
- 2004-01-09
- Volume
- 69
- Issue
- 1
- ISSN
- 0556-2791 (ISSN-L)
- 1050-2947
- 1094-1622
- OpenAlex
- W2031967938
- Cited by
- 127
- References
- 5
- Citations by year
- 2026: 5 · 2025: 11 · 2024: 7 · 2023: 11 · 2022: 11 · 2021: 7 · 2020: 5 · 2019: 7 · 2018: 5 · 2017: 6 · 2016: 3 · 2015: 4 · 2014: 5 · 2013: 7 · 2012: 4
- FWCI
- 2.71
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Physical Review A (publishedVersion)
- Topics
- Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum optics and atomic interactions
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Semiconductor Quantum Structures and Devices
- Keywords
- polarization-entangled photon pairs, Sagnac interferometer, two-photon interference, interferometer stability
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