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 Experiment Video

Updated: May 28, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

All-optical modulation using two-photon absorption in silicon core optical fibers.

P Mehta1, N Healy, T D Day

  • 1Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ, UK.

Optics Express
|October 15, 2011
PubMed
Summary

All-optical modulation using two-photon absorption (TPA) in hydrogenated amorphous silicon optical fibers achieves subpicosecond speeds. This demonstrates potential for high-speed signal processing applications at telecommunication wavelengths.

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

Emergency Radiology - Increasing demand on out-of-hours radiology department resources.

Irish medical journal·2026
Same author

Non-biopsy of fibroadenomas in the UK and Ireland: a British Society of Breast Radiology survey of national practice.

Clinical radiology·2025
Same author

Case reports, reflective practice and learning to succeed.

Anaesthesia reports·2023
Same author

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC.

The European physical journal. C, Particles and fields·2022
Same author

Study of "ALS reversals": LifeTime environmental exposures (StARLiTE).

Amyotrophic lateral sclerosis & frontotemporal degeneration·2022
Same author

Corticosteroids reduce vascular ultrasound sensitivity in fast- track pathways (FTP): results from Coventry Multi-Disciplinary FTP for cranial Giant Cell Arteritis.

Scandinavian journal of rheumatology·2022

Area of Science:

  • Photonics and Optical Engineering
  • Materials Science

Background:

  • All-optical modulation is crucial for high-speed signal processing.
  • Two-photon absorption (TPA) offers a nonlinear optical mechanism for modulation.
  • Hydrogenated amorphous silicon (a-Si:H) is a promising material for optical applications.

Purpose of the Study:

  • To demonstrate all-optical modulation in a-Si:H core optical fibers.
  • To investigate modulation based on degenerate and non-degenerate two-photon absorption (TPA).
  • To assess the potential for high-speed signal processing.

Main Methods:

  • Utilized pump-probe experiments to study nonlinear absorption.
  • Employed numerical simulations of coupled propagation equations.
  • Characterized modulation performance at telecommunications wavelengths.

More Related Videos

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

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Related Experiment Videos

Last Updated: May 28, 2026

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
09:03

A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response

Published on: January 7, 2019

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

Generation and Coherent Control of Pulsed Quantum Frequency Combs
06:42

Generation and Coherent Control of Pulsed Quantum Frequency Combs

Published on: June 8, 2018

Main Results:

  • Achieved subpicosecond all-optical modulation.
  • Demonstrated an extinction ratio exceeding 4 dB.
  • Quantified nonlinear absorption strength through experimental and simulation comparison.

Conclusions:

  • Hydrogenated amorphous silicon core optical fibers enable efficient all-optical modulation.
  • The demonstrated performance is suitable for high-speed optical signal processing.
  • TPA in these fibers presents a viable pathway for future photonic device development.