Title :
Super continuum generation at 800 nm in highly nonlinear photonic crystal fibers with normal dispersion
Author :
Hansen, Kim P. ; Larsen, Jakob Juul ; Jensen, Jacob Riis ; Keiding, Seren ; Broeng, Jes ; Simonsen, Harald R. ; Bjarklev, Anders
Author_Institution :
Res. Center COM, Tech. Univ. Denmark, Lyngby, Denmark
Abstract :
More than 90 nm broad self-phase modulation (SPM) induced pulses have been created from both 25 and 50 fs pulses in just 12.5 cm of fiber. The broadening is more than 2.5 times that observed in standard SMF. SPM broadening in PCFs has several advantages over more complex super continuum generation (SCG) effects in fibers with zero or positive dispersion at the pumping wavelength. The output is very stable, there is no loss of power to unwanted wavelengths and the spectral shape is relatively insensitive to fluctuations in pumping power. This also makes the output suitable for subsequent compression, for 10 fs-range pulse generation. By shifting the zero-dispersion and pumping wavelength to the telecom range, WDM sources become a potential application
Keywords :
optical fibre dispersion; optical pulse generation; optical pumping; optical solitons; photonic band gap; self-phase modulation; 800 nm; WDM sources; broad spectra; highly nonlinear photonic crystal fibers; normal dispersion; pulse generation; pumping pulse length; self-phase modulation; short femtosecond-range high power pulses; spectral width; supercontinuum generation; Dispersion; Distributed power generation; Fluctuations; Pulse compression methods; Pulse generation; Pulse modulation; Scanning probe microscopy; Spectral shape; Telecommunications; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969008
