DocumentCode :
1919105
Title :
All-fiber femtosecond Cherenkov laser at visible wavelengths
Author :
Xiaomin Liu ; Lagsgaard, Jesper ; Møller, Uffe ; Haohua Tu ; Boppart, Stephen A. ; Turchinovich, Dmitry
Author_Institution :
DTU Fotonik, Tech. Univ. of Denmark, Lyngby, Denmark
fYear :
2013
fDate :
12-16 May 2013
Firstpage :
1
Lastpage :
1
Abstract :
Fiber-optic Cherenkov radiation (CR), also known as dispersive wave generation or non-solitonic radiation, is produced in small-core photonic crystal fibers (PCF) when a soliton perturbed by fiber higher-order dispersion co-propagates with a dispersive wave fulfilling a certain phase-matching condition. The resonant ultrafast wave conversion via the fiber-optic CR mechanism is instrumental for applications in biophotonics such as bio-imaging and microscopy. In this work, we demonstrate a highly-stable all-fiber, fully monolithic CR system based on an Yb-fiber femtosecond laser, producing electrically tunable femtosecond CR output in the visible (VIS) spectral range of 580-630 nm, with the 3 dB spectral bandwidth not exceeding 36 nm, with average power in the milliwatt range. Relative intensity noise (RIN) of this laser, affecting the sensitivity of bio-imaging and microscopy systems, is found to be as low as -103 dBc/Hz. This is 2 orders of magnitudes lower noise as compared to spectrally-sliced supercontinuum, which is the current standard of ultrafast fiber-optic generation at visible wavelength.
Keywords :
Cherenkov radiation; fibre lasers; high-speed optical techniques; laser noise; laser tuning; ytterbium; Yb-fiber femtosecond laser; all-fiber femtosecond Cherenkov laser; bio-imaging; electrically tunable femtosecond CR output; highly-stable all-fiber fully monolithic Cherenkov radiation system; microscopy systems; relative intensity noise; ultrafast fiber-optic generation; visible wavelengths; wavelength 580 nm to 630 nm; Laser excitation; Laser noise; Power generation; Power lasers; Pump lasers; Ultrafast optics; Wavelength division multiplexing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
Type :
conf
DOI :
10.1109/CLEOE-IQEC.2013.6801079
Filename :
6801079
Link To Document :
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