Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Generation of 10-dB squeezed light from a broadband waveguide optical parametric amplifier with improved phase locking method.

Optics express·2026
Same author

18.6-THz long-haul transmission over G.654.E cutoff-shifted fiber across C + L + U + X-band within single-mode region.

Optics express·2025
Same author

All-optical measurement-device-free feedforward enabling ultra-fast quantum information processing.

Optics express·2025
Same author

Optically sampled superconducting-nanostrip photon-number resolving detector for non-classical quantum state generation.

Optics express·2025
Same author

Finding independent sets in large-scale graphs with a coherent Ising machine.

Science advances·2025
Same author

Generation of multi-photon Fock states at telecommunication wavelength using picosecond pulsed light.

Optics express·2024

Related Experiment Video

Updated: Jun 11, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.4K

Long-term stability of squeezed light in a fiber-based system using automated alignment.

Tomohiro Nakamura1, Takefumi Nomura1, Mamoru Endo1,2

  • 1Department of Applied Physics, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.

The Review of Scientific Instruments
|September 30, 2024
PubMed
Summary

Researchers developed a stable fiber-based system for optical quantum computing, successfully measuring squeezed light for 24 hours. This breakthrough enables long-term operation of complex quantum systems, paving the way for cloud quantum computation services.

More Related Videos

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.5K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.8K

Related Experiment Videos

Last Updated: Jun 11, 2025

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements
14:18

Automation of Mode Locking in a Nonlinear Polarization Rotation Fiber Laser through Output Polarization Measurements

Published on: February 28, 2016

11.4K
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
08:48

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

7.5K
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
09:43

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

9.8K

Area of Science:

  • Quantum Optics
  • Fiber Optics Engineering

Background:

  • Optical quantum computing requires stable systems for extended operation.
  • Fiber-based systems offer advantages over free-space optics but face unique instabilities like phase drifts and polarization fluctuations.
  • Existing fiber systems lack long-term stability for practical applications such as cloud services.

Purpose of the Study:

  • To demonstrate the feasibility of a stable fiber-based system for continuous measurement of squeezed light.
  • To develop and implement stabilization mechanics and automated alignment for fiber-based optical quantum systems.
  • To enable long-term, automated operation of complex optical setups for quantum computation.

Main Methods:

  • Development of novel stabilization mechanics to mitigate fiber-specific instabilities (temperature drifts, external disturbances).
  • Implementation of an integrated controller for automated alignment of the fiber system.
  • Continuous measurement of squeezed light at 1545.3 nm over a 24-hour period with automated recalibration every 30 minutes.

Main Results:

  • Successful 24-hour measurement of squeezed light using a fiber-based system.
  • Achieved average squeezing levels of -4.42 dB.
  • Recorded extremely low standard deviation of 0.08 dB over the 24-hour measurement period, demonstrating high stability.

Conclusions:

  • The developed stabilization and automated alignment technologies are effective in overcoming fiber-based instabilities.
  • This work validates the potential of fiber-based systems for complex, long-term optical setups.
  • The findings are promising for the realization of cloud services for quantum computation.