A Passive All-Optical Device for 2R Regeneration Based on the Cascade of Two High-Speed Saturable Absorbers

Autor:	J. Fatome, Guy Aubin, Jean-Louis Oudar, Coraline Fortier, Hoang Trung Nguyen
Rok vydání:	2011
Předmět:	Materials science Extinction ratio business.industry Noise reduction Signal Transfer function Noise (electronics) Atomic and Molecular Physics and Optics Optics Cascade Chirp Optoelectronics business Absorption (electromagnetic radiation)
Zdroj:	Journal of Lightwave Technology. 29:1319-1325
ISSN:	1558-2213 0733-8724
Popis:	We discuss the design and realization of a passive all-optical device for 2R regeneration based on a dual-stage of high-speed microcavity saturable absorbers, one for noise reduction of digital zeros (SA-0), and the other for noise reduction of digital ones (SA-1). The numerical and experimental results showed that by using a simple combination of SA-0 and SA-1 devices, one can obtain an intensity transfer function with a large extinction ratio improvement of low power levels and a strongly nonlinear response reducing the noise of high power levels. The amplitude and phase characterization of a 40-GHz signal transmitted by this device, obtained by frequency-resolved optical gating measurements, reveals the intensity-dependant pulse-compression effect and the low chirp introduced by this device.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eb5b020957ff18dbeae86d339df37961 https://doi.org/10.1109/jlt.2011.2117413 Zobrazit plný text záznamu