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

Electronic Distance Measuring Instruments01:30

Electronic Distance Measuring Instruments

Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...

You might also read

Related Articles

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

Sort by
Same author

FMCW LiDAR with a GaN-based distributed feedback laser diode at 466 nm.

Optics express·2026
Same author

Waveform measurement technique for phase/frequency-modulated lights based on self-heterodyne interferometry.

Optics express·2017
Same author

Characterization of optical resonators with an incoherent light.

Optics express·2013
Same author

Limitation and improvement in the performance of recirculating delayed self-heterodyne method for high-resolution laser lineshape measurement.

Optics express·2012
Same author

Titanium-based transition-edge photon number resolving detector with 98% detection efficiency with index-matched small-gap fiber coupling.

Optics express·2011
Same author

Time division vector optical sampling for ultrafast amplitude/phase modulation device characterization.

Optics letters·2010

Related Experiment Video

Updated: Jun 4, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Laser frequency modulation noise measurement by recirculating delayed self-heterodyne method.

Hidemi Tsuchida1

  • 1Photonics Research Institute, National Institute of Advanced Industrial Science and Technology, Umezono, Tsukuba, Japan. h-tsuchida@aist.go.jp

Optics Letters
|March 4, 2011
PubMed
Summary

This study introduces a recirculating delayed self-heterodyne (DSH) method to measure frequency modulation (FM) noise power spectral densities (PSDs) in laser sources. The method effectively characterizes laser spectral purity, revealing flicker noise as the dominant factor in fiber lasers.

More Related Videos

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Related Experiment Videos

Last Updated: Jun 4, 2026

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies
09:38

Characterizing Far-infrared Laser Emissions and the Measurement of Their Frequencies

Published on: December 18, 2015

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
07:42

Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator

Published on: December 15, 2021

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics
09:10

Construction and Characterization of External Cavity Diode Lasers for Atomic Physics

Published on: April 24, 2014

Area of Science:

  • Optics and Photonics
  • Laser Physics
  • Metrology

Background:

  • Laser spectral purity is crucial for various applications.
  • Characterizing frequency modulation (FM) noise is essential for understanding laser performance.
  • Existing methods may have limitations in accuracy or range.

Purpose of the Study:

  • To propose and demonstrate a novel method for measuring FM noise power spectral densities (PSDs).
  • To evaluate the spectral purity of narrow-linewidth fiber lasers.
  • To establish a robust technique for characterizing laser sources.

Main Methods:

  • Utilizing the recirculating delayed self-heterodyne (DSH) technique.
  • Analyzing DSH beat signals with varying delay lengths (1, 10, and 160 km).
  • Evaluating FM noise PSDs across a Fourier frequency range from 10 Hz to 100 kHz.

Main Results:

  • Successfully demonstrated the DSH method for FM noise PSD measurement.
  • Quantified the FM noise PSD of a narrow-linewidth fiber laser.
  • Identified flicker noise as the dominant contribution to FM noise in the tested fiber laser.

Conclusions:

  • The recirculating DSH method is effective for characterizing laser spectral purity.
  • The study provides fundamental insights into the noise characteristics of fiber lasers.
  • This technique offers a valuable tool for laser source development and quality assessment.