Dynamic frequency shift in photonic crystal resonators and slow light waveguides

L. O'Faolain; M. Castellanos Munoz; A.Y. Petrov; J. Li; T.F. Krauss; M. Eich

doi:10.1109/ICTON.2015.7193323

Dynamic frequency shift in photonic crystal resonators and slow light waveguides

L. O'Faolain, M. Castellanos Munoz, A.Y. Petrov, J. Li, T.F. Krauss, M. Eich

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

The dynamic frequency shift of the optical pulse can be obtained if the refractive index of the guiding structure is switched while the pulse is inside the structure. We have developed a co-propagating scheme where switching is obtained by a second pulse which generates free carriers into a silicon waveguide and thus shifts refractive index by up to 0.01. The interaction was studied in two systems. First, system based on a photonic crystal heterostructure cavity was considered which was excited at the resonance frequency by the signal and then switched by the second pulse at the frequency of the pass band. In the second system two pulses were propagating in a slow light waveguide. Two pulses with different group velocities could overtake each other inside the structure. In both system theoretical models were developed to explain expected frequency shifts and compared to the experiment.

Original language	English
Title of host publication	2015 17th International Conference on Transparent Optical Networks (ICTON)
Editors	Marek Jaworski, Marian Marciniak
Publisher	IEEE
ISBN (Print)	9781467378802
DOIs	https://doi.org/10.1109/ICTON.2015.7193323
Publication status	Published - 12 Aug 2015

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title = "Dynamic frequency shift in photonic crystal resonators and slow light waveguides",

abstract = "The dynamic frequency shift of the optical pulse can be obtained if the refractive index of the guiding structure is switched while the pulse is inside the structure. We have developed a co-propagating scheme where switching is obtained by a second pulse which generates free carriers into a silicon waveguide and thus shifts refractive index by up to 0.01. The interaction was studied in two systems. First, system based on a photonic crystal heterostructure cavity was considered which was excited at the resonance frequency by the signal and then switched by the second pulse at the frequency of the pass band. In the second system two pulses were propagating in a slow light waveguide. Two pulses with different group velocities could overtake each other inside the structure. In both system theoretical models were developed to explain expected frequency shifts and compared to the experiment.",

author = "L. O'Faolain and {Castellanos Munoz}, M. and A.Y. Petrov and J. Li and T.F. Krauss and M. Eich",

note = "This research was supported by the German Research Foundation DFG (EI 391/12-2). ",

year = "2015",

month = aug,

day = "12",

doi = "10.1109/ICTON.2015.7193323",

language = "English",

isbn = "9781467378802",

editor = "Marek Jaworski and Marian Marciniak",

booktitle = "2015 17th International Conference on Transparent Optical Networks (ICTON)",

publisher = "IEEE",

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TY - GEN

T1 - Dynamic frequency shift in photonic crystal resonators and slow light waveguides

AU - O'Faolain, L.

AU - Castellanos Munoz, M.

AU - Petrov, A.Y.

AU - Li, J.

AU - Krauss, T.F.

AU - Eich, M.

N1 - This research was supported by the German Research Foundation DFG (EI 391/12-2).

PY - 2015/8/12

Y1 - 2015/8/12

N2 - The dynamic frequency shift of the optical pulse can be obtained if the refractive index of the guiding structure is switched while the pulse is inside the structure. We have developed a co-propagating scheme where switching is obtained by a second pulse which generates free carriers into a silicon waveguide and thus shifts refractive index by up to 0.01. The interaction was studied in two systems. First, system based on a photonic crystal heterostructure cavity was considered which was excited at the resonance frequency by the signal and then switched by the second pulse at the frequency of the pass band. In the second system two pulses were propagating in a slow light waveguide. Two pulses with different group velocities could overtake each other inside the structure. In both system theoretical models were developed to explain expected frequency shifts and compared to the experiment.

AB - The dynamic frequency shift of the optical pulse can be obtained if the refractive index of the guiding structure is switched while the pulse is inside the structure. We have developed a co-propagating scheme where switching is obtained by a second pulse which generates free carriers into a silicon waveguide and thus shifts refractive index by up to 0.01. The interaction was studied in two systems. First, system based on a photonic crystal heterostructure cavity was considered which was excited at the resonance frequency by the signal and then switched by the second pulse at the frequency of the pass band. In the second system two pulses were propagating in a slow light waveguide. Two pulses with different group velocities could overtake each other inside the structure. In both system theoretical models were developed to explain expected frequency shifts and compared to the experiment.

U2 - 10.1109/ICTON.2015.7193323

DO - 10.1109/ICTON.2015.7193323

M3 - Conference contribution

AN - SCOPUS:84940920049

SN - 9781467378802

BT - 2015 17th International Conference on Transparent Optical Networks (ICTON)

A2 - Jaworski, Marek

A2 - Marciniak, Marian

PB - IEEE

ER -

Dynamic frequency shift in photonic crystal resonators and slow light waveguides

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