Fiber-optic delivery of femtosecond laser pulses permits the development of miniaturized, flexible two-photon microscopes. A major obstacle has been pulse-broadening caused by fiber dispersion and non-linearities. Here we utilize a novel hollow-core photonic crystal fiber for undistorted transmission of high-energy femtosecond pulses at 810-nm center wavelength from a Ti:sapphire laser.
© 2004 Optical Society of America
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(060.2270) Fiber optics and optical communications : Fiber characterization
(060.2350) Fiber optics and optical communications : Fiber optics imaging
F. Helmchen, W. Göbel, and A. Nimmerjahn, "Fiber-optic two-photon-excited fluorescence microscopy," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest Series (Optical Society of America, 2004), paper FWF4.
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