Open AccessPolarization-maintaining fiber pulse compressor by birefringent hollow-core photonic bandgap fiber
Author(s) -
Akira Shirakawa,
Motoyuki Tanisho,
Ken–ichi Ueda
Publication year - 2006
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.012039
Subject(s) - materials science , optics , photonic crystal fiber , polarization maintaining optical fiber , birefringence , polarization mode dispersion , polarization (electrochemistry) , dispersion shifted fiber , optoelectronics , optical fiber , fiber optic sensor , wavelength , physics , chemistry
Structural birefringent properties of a hollow-core photonic-bandgap fiber were carefully investigated and applied to all-fiber chirped-pulse amplification as a compressor. The group birefringence of as high as 6.9x10(-4) and the dispersion splitting by as large as 149 ps/nm/km between the two principal polarization modes were observed at 1557 nm. By launching the amplifier output to one of the polarization modes a 17-dB polarization extinction ratio was obtained without any pulse degradation originating from polarization-mode dispersion. A hybrid fiber stretcher effectively compensates the peculiar dispersion of the photonic-bandgap fiber and pedestal-free 440-fs pulses with a 1-W average power and 21-nJ pulse energy were obtained. Polarization-maintaining fiber-pigtail output of high-power femtosecond pulses is useful for various applications.