Conference paper
Enhanced Gain in Photonic Crystal Amplifiers
Department of Photonics Engineering, Technical University of Denmark1
Quantum and Laser Photonics, Department of Photonics Engineering, Technical University of Denmark2
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3
Nanophotonics, Department of Photonics Engineering, Technical University of Denmark4
We experimentally demonstrate enhanced gain in the slow-light regime of quantum well photonic crystal amplifiers. A strong gain enhancement is observed with the increase of the group refractive index, due to light slow-down. The slow light enhancement is shown in a amplified spontaneous emission study of a 1 QW photonic crystal amplifier.
Net gain is achieved which enables laser oscillation in photonic crystal micro cavities. The ability to freely tailor the dispersion in a semiconductor optical amplifier makes it possible to raise the optical gain considerably over a certain bandwidth. These results are promising for short and efficient semiconductor optical amplifiers.
This effect will also benefit other devices, such as mode locked lasers.
Language: | English |
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Publisher: | IEEE |
Year: | 2012 |
Pages: | 1-4 |
Proceedings: | 14th International Conference on Transparent Optical Networks (ICTON) |
ISBN: | 146732227X , 146732227x , 1467322288 , 1467322296 , 9781467322270 , 9781467322287 and 9781467322294 |
ISSN: | 21612064 , 21612056 and 21627339 |
Types: | Conference paper |
DOI: | 10.1109/ICTON.2012.6253790 |
ORCIDs: | Semenova, Elizaveta , Yvind, Kresten and Mørk, Jesper |