Search research articles

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

Detection of gamma irradiation with milligray resolution using a slow-light fiber Bragg grating.

Optics letters·2025

Same author

Optical cooling of a Yb-doped alumino-phosphosilicate fiber in air by -250 mK.

Optics letters·2024

Same author

High-efficiency radiation-balanced Yb-doped silica fiber laser with 200-mW output.

Optics letters·2024

Same author

Modular Aptamer Switches for the Continuous Optical Detection of Small-Molecule Analytes in Complex Media.

Advanced materials (Deerfield Beach, Fla.)·2023

Same author

Anti-Stokes fluorescence cooling of nanoparticle-doped silica fibers.

Optics letters·2022

Same author

Radiation-Balanced Silica Fiber Amplifier.

Physical review letters·2021

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Mar 10, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Pseudo-random-bit-sequence phase modulation for reduced errors in a fiber optic gyroscope.

Jacob Chamoun, Michel J F Digonnet

|December 16, 2016

Summary

Researchers reduced noise and drift in fiber optic gyroscopes (FOGs) by using a low-coherence laser. This technique achieved record-low performance, crucial for aircraft navigation.

More Related Videos

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Related Experiment Videos

Last Updated: Mar 10, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

Published on: March 20, 2017

Quasi-light Storage for Optical Data Packets

Quasi-light Storage for Optical Data Packets

Published on: February 6, 2014

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator

Published on: January 28, 2019

Area of Science:

Optical Engineering
Inertial Navigation Systems

Background:

Fiber optic gyroscopes (FOGs) are critical for inertial navigation.
Achieving low noise and drift in FOGs is essential for high-precision applications.
Traditional laser sources can introduce noise limitations in FOG performance.

Purpose of the Study:

To demonstrate significantly reduced noise and drift in a laser-driven FOG.
To investigate the effect of laser coherence on FOG sensor performance.
To establish new benchmarks for FOG noise and drift levels.

Main Methods:

Interrogating the FOG sensor with a low-coherence laser.
Broadening the laser's optical spectrum using an electro-optic phase modulator.
Employing sinusoidal or pseudo-random bit sequence (PRBS) waveforms for modulation.

Main Results:

Laser coherence was reduced by broadening the spectrum from 10 MHz to over 10 GHz using PRBS modulation.
Measured FOG noise achieved was 0.00073 deg/√h.
Measured FOG drift was 0.023 deg/h, below aircraft inertial navigation requirements.

Conclusions:

Modulating laser coherence effectively reduces noise and drift in FOGs.
The achieved noise and drift levels represent the lowest reported for laser-driven FOGs.
This method shows potential for enhancing the performance of inertial navigation systems.