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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

All-fiber optical frequency shifter.

A P Foord, P A Greenhalgh, P A Davies

|September 24, 2009

Summary

A novel all-fiber frequency shifter operates at lower frequencies without removing the fiber buffer coat. This unique device achieves 2.5% conversion efficiency and over 20-dB sideband suppression with a 2.3-W electrical drive.

Area of Science:

Photonics and Optical Engineering
Materials Science

Background:

Traditional frequency shifters often rely on surface acoustic waves, limiting operational frequencies.
Existing methods may necessitate complex fiber preparation, such as buffer coat removal.

Purpose of the Study:

To demonstrate a new all-fiber frequency shifter with enhanced capabilities.
To overcome limitations of existing frequency shifting technologies.

Main Methods:

Development of a novel all-fiber frequency shifter prototype.
Testing the device's performance under electrical drive.

Main Results:

The prototype operates at lower frequencies compared to surface acoustic wave devices.
Achieved 2.5% conversion efficiency with 2.3-W electrical drive.

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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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

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Demonstrated greater than 20-dB unwanted sideband suppression.

Conclusions:

The developed all-fiber frequency shifter offers a unique, low-frequency operational capability.
The device's design eliminates the need for fiber buffer coat removal, simplifying implementation.
The prototype shows promising efficiency and sideband suppression for practical applications.