Berlin 2005 – scientific programme
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Q: Quantenoptik und Photonik
Q 36: Quanteneffekte II
Q 36.2: Talk
Tuesday, March 8, 2005, 11:00–11:15, HU 1072
Photon number squeezing using an all-in-fiber asymmetric Sagnac loop — •Metin Sabuncu1, Joel Heersink1, Thomas Hellmuth2, Gerd Leuchs1, and Ulrik Andersen1 — 1IOIP Max Planck Forschungsgruppe Uni. Erlangen-Nürnberg, Günther-Scharowsky-Str. 1 Bau 24, 91058 Erlangen — 2Heinrich-Rieger-Strasse 22/1, 73430 Aalen
We produce photon-number squeezed solitons using an all-in-fibre asymmetric Sagnac interferometer. A fixed coupler in the interferometer provides a constant splitting ratio of 93:7 at a wavelength of 1530 nm. 30 metres of polarisation maintaining Panda fibre is used for the Sagnac loop. We investigated the squeezing depending on the power and wavelength of the input beam and saw more than 3 dB of amplitude noise reduction below the shot noise level. Our all-in-fibre squeezing source is promising for applications in the field of quantum information especially due to its compactness and robustness.