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Updated: May 27, 2026
06:42
Generation and Coherent Control of Pulsed Quantum Frequency Combs
Published on: June 8, 2018
Dispersion requirements in coherent frequency-to-time mapping.
Victor Torres-Company1, Daniel E Leaird, Andrew M Weiner
1School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA. torres31@purdue.edu
Optics Express
|November 24, 2011
Summary
Researchers relaxed the far-field condition for frequency-to-time mapping, enabling ultrabroadband radio-frequency (RF) waveform generation from ultrashort optical pulses without extensive dispersion.
Area of Science:
- Optics and Photonics
- Signal Processing
Background:
- Frequency-to-time mapping typically requires significant dispersion to replicate optical spectra in the time domain.
- The temporal far-field phenomenon is a key principle in this technique.
Purpose of the Study:
- To investigate the near-to-far-field transition in frequency-to-time mapping.
- To explore relaxation of the far-field condition for efficient radio-frequency (RF) waveform generation.
Main Methods:
- Analysis of the near-to-far-field transition dynamics.
- Experimental validation of relaxed far-field conditions.
Main Results:
- Demonstrated that the far-field condition can be relaxed under specific circumstances.
- Achieved ultrabroadband RF bandwidth content in generated intensity signals.
Conclusions:
- The study offers a novel approach to RF waveform generation by relaxing the far-field requirement.
- This advancement facilitates the creation of signals with extensive RF bandwidth using ultrashort optical pulses.
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