Abstract
We report the demonstration of a new wavelength-swept source. Utilizing
narrowband, widely tunable fiber optical parametric process as the gain and
the wavelength selection mechanism in a ring laser topology, simultaneous
access to two distinct bands (NIR and SWIR) over 329 nm was achieved. A
nonmechanical cavity-tuning mechanism allowed for ultrafast sweep rate,
limited primarily by the speed of the tunable pump source confined to a
conventional 1550-nm band. With the experimentally verified
order-of-magnitude enhancement in sweep range and speed, the source opens a
path for spectral scanning at an unprecedented speed and range while relying
on existing tuning technologies.
© 2011 IEEE
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