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Updated: Jun 23, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

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Published on: August 5, 2013

Ultrafast all-optical modulation based on graphene-microfiber.

Xuetao Xia, Mengye Wang, Jiatong Zhang

|March 14, 2025

Summary

This summary is machine-generated.

Researchers developed an all-optical modulator using graphene-microfiber (GMF) for ultrafast all-optical networks. This novel graphene-based device demonstrates efficient modulation capabilities with potential applications in high-speed optical communication systems.

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Last Updated: Jun 23, 2026

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

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Published on: August 5, 2013

Fabrication and Testing of Microfluidic Optomechanical Oscillators

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Published on: May 29, 2014

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Published on: April 20, 2016

Area of Science:

Photonics and Optical Engineering
Materials Science
Nanotechnology

Background:

All-optical modulators are crucial for high-speed optical communication.
Graphene's unique optical properties make it a promising material for photonic devices.
Integrating graphene with optical fibers offers new avenues for device design.

Purpose of the Study:

To propose and investigate an all-optical modulator based on graphene-microfiber (GMF).
To characterize the modulation performance of GMF under various light source conditions.
To explore the ultrafast modulation capabilities of the developed GMF device.

Main Methods:

Fabrication of GMF by transferring graphene onto the tapered region of a microfiber.
Experimental study of all-optical modulation using different combinations of pump and signal light sources.
Measurement of modulation depth, response time, and equivalent modulation rate.

Main Results:

GMF successfully demonstrated all-optical modulation capabilities.
Broadband pump light (1550 nm ASE) achieved a maximum modulation depth of 3.92 dB with single-pulse signal light (852 nm).
Single-pulse pump light (980 nm) achieved a maximum modulation depth of 2.966 dB with single-pulse signal light (1550 nm).
The device exhibited ultrafast modulation characteristics with an average response time of 51.43 μs and an average equivalent modulation rate of 19.44 kHz when using femtosecond pulse laser as pump light.

Conclusions:

The graphene-microfiber all-optical modulator offers a novel approach for device design.
The GMF modulator exhibits significant potential for applications in ultrafast all-optical networks.
This work contributes to the advancement of graphene-based photonic devices.