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Published on: November 30, 2012
Distortion free pulse delay system using a pair of tunable white light cavities
1Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208, USA.
Optics Express
|April 1, 2011
Summary
This study presents a novel distortion-free delay system for data pulses using two tunable bandwidth white light cavities (WLCs). The system traps and releases data pulses with minimal distortion, exceeding typical data buffer limitations.
Area of Science:
- Optics and Photonics
- Quantum Optics
- Information Optics
Background:
- Tunable bandwidth white light cavities (WLCs) offer adjustable linewidth without compromising cavity buildup.
- Previous work demonstrated WLCs with anomalous dispersion for linewidth control.
Purpose of the Study:
- To theoretically demonstrate a distortion-free delay system for data pulses using WLCs.
- To explore the potential of WLCs for advanced data buffering applications.
Main Methods:
- A theoretical model was developed for a delay system comprising two serially placed WLCs.
- The system utilizes deactivated WLCs as high-reflectivity mirrors to trap data pulses.
- Numerical simulations were performed to analyze pulse behavior and system performance.
Main Results:
- The proposed system enables distortion-free delay of data pulses.
- The WLC-based system significantly surpasses the delay-bandwidth constraints of conventional slow-light buffers.
- Data pulses experience negligible attenuation during the trapping and delay process.
Conclusions:
- Tunable bandwidth white light cavities can be effectively utilized to create high-performance, distortion-free data delay systems.
- This approach offers a promising solution for overcoming limitations in current data buffering technologies.

