Novel femtosecond soliton source for multicolor non-linear spectroscopy

M. MASIP; A. RIEZNIK; P. KÖNIG; D. GROSZ; A. V. BRAGAS; O. E. MARTÍNEZ

San Carlos de Bariloche, Argentina

Workshop; US-Argentina Workshop on Nanomaterials; 2009

UNIVERSIDAD DE BUENOS AIRES- UNIVERSIDAD DE CALIFORNIA

We present a complete set of measurements and numerical simulations of a femtosecond soliton source with fast and broad spectral tunability and nearly constant pulsewidth and average power. Solitons generated in a photonic crystal fiber can be tuned in a broad range of wavelengths ranging from 850 nm to 1200 nm using the input power asthe control parameter. These solitons keep almost constant time duration ( 40 fs) and spectral widths (20 nm) over the whole measured spectra regardless of input power. Ournumerical simulations agree well with measurements and predict a wide working wavelength range and robustness to input parameters. The use of an AOM provides a tunable sourcewith 10 ns set-time across the entire spectra, allowing to customize the spectrum. Therefore, this source is very attractive for multicolor non-linear microscopy applied to cell imaging.