ASE contrast improvement with a non-linear filtering Sagnac interferometer
| Autor: | Jean-Paul Chambaret, Thierry Auguste, Amandine Renault, Pascal D'Oliveira, Thomas A. Planchon, Frédérika Augé-Rochereau, Gilles Chériaux |
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| Přispěvatelé: | Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Amplitude Technologies, Centre d'Etudes de Saclay, Commissariat à l'énergie atomique et aux énergies alternatives (CEA) |
| Rok vydání: | 2005 |
| Předmět: |
Amplified spontaneous emission
media_common.quotation_subject 02 engineering and technology 01 natural sciences Ultrashort pulses law.invention Non-linear filter 010309 optics 020210 optoelectronics & photonics Optics law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Contrast (vision) Electrical and Electronic Engineering Physical and Theoretical Chemistry media_common Physics [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] Pulse (signal processing) business.industry PACS 42.60.By 42.62 42.65.Re 42.65.-k 07.60.L Contrast Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Interferometry Orders of magnitude (time) business Sagnac interferometer Ultrashort pulse Gaussian beam |
| Zdroj: | Optics Communications Optics Communications, Elsevier, 2005, 248 (4-6), pp.535-541. ⟨10.1016/j.optcom.2004.12.038⟩ Optics Communications, 2005, 248 (4-6), pp.535-541. ⟨10.1016/j.optcom.2004.12.038⟩ |
| ISSN: | 0030-4018 |
| Popis: | International audience; A new method to improve the temporal contrast of an ultra-short laser pulse has been developed. This technique uses a Sagnac interferometer in combination with a non-linear medium. A phase shift induced in the ultra-short pulse by non-linear effect separates it from the amplified spontaneous emission background. Experiments with a 1 kHz, 55 fs, 1 mJ Ti:Sa laser were performed. The temporal contrast measurements have shown a contrast improvement of four orders of magnitude. |
| Databáze: | OpenAIRE |
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