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Ultrafast tunable optical delay line based on indirect photonic transitions.
- Source :
-
Physical review letters [Phys Rev Lett] 2012 May 25; Vol. 108 (21), pp. 213901. Date of Electronic Publication: 2012 May 21. - Publication Year :
- 2012
-
Abstract
- We introduce the concept of an indirect photonic transition and demonstrate its use in a dynamic delay line to alter the group velocity of an optical pulse. Operating on an ultrafast time scale, we show continuously tunable delays of up to 20 ps, using a slow light photonic crystal waveguide only 300 μm in length. Our approach is flexible, in that individual pulses in a pulse stream can be controlled independently, which we demonstrate by operating on pulses separated by just 30 ps. The two-step indirect transition is demonstrated here with a 30% conversion efficiency.
Details
- Language :
- English
- ISSN :
- 1079-7114
- Volume :
- 108
- Issue :
- 21
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 23003252
- Full Text :
- https://doi.org/10.1103/PhysRevLett.108.213901