This thesis examines laser generation from the ultraviolet to the short
edge of the mid-infrared band by exploiting the nonlinear effects in
photonic crystal fibers (PCFs). Several different physical mechanisms
are investigated by using homemade PCFs with elaborately customized
dispersion profiles. A particular focus is on the development of fiber
optical parametric amplifiers (FOPAs) and oscillators (FOPOs) based on
the PCFs with a zero-dispersion wavelength of ca.1.06 μm. In particular,
several schemes are proposed for solving the key problems involved in
the application of FOPOs. These oscillators can be made more convenient
to use by optimizing the wavelength-tuning mechanisms and made more
energy-efficient with the help of specially designed cavity structures.
Today's oscillators are more reliable, powerful and maneuverable than
ever. This thesis provides a systematic road map in connection with the
study of nonlinear wavelength generation in PCFs, from their fiber
design and technical fabrication, to their physical mechanism and
experimental investigation.