Projects per year
Abstract
We demonstrate, by theory and experiment, the ultrafast tilting of the dispersion curve of a photonic-crystal waveguide following the absorption of a femtosecond pump pulse. By shaping the pump-beam cross section with a nanometric shadow mask, different waveguide eigenmodes acquire different spatial overlap with the perturbing pump, leading to a local flattening of the dispersion by up to 11%. We find that such partial mode perturbation can be used to adiabatically compress the spectrum of a light pulse traveling through the waveguide.
Original language | English |
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Article number | 033902 |
Pages (from-to) | - |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 108 |
Issue number | 3 |
DOIs | |
Publication status | Published - 18 Jan 2012 |
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Dive into the research topics of 'Ultrafast tilting of the dispersion of a photonic crystal and adiabatic spectral compression of light pulses'. Together they form a unique fingerprint.Projects
- 2 Finished
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UK Silicon Photonics EP/F001622/1: UK Silicon Photonics
Krauss, T. F. (PI)
1/06/08 → 31/05/13
Project: Standard
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SPLASH EU FP VI STREP 033651: SPLASH - Slow Photon Light Activated Switch
Krauss, T. F. (PI)
1/01/07 → 30/06/10
Project: Standard