Abstract
Single-frequency lasers at 1.5 μm are key elements for applications to several fields such as spectroscopy and optical sensing. In many cases device specifications may become very demanding in tenns of power, compactness, insensitivity to enviromnental disturbance and lùgli temporal coherence. Bulk laser cavities are able to provide lùgli output powers but are generally quite sensitive to technical noise and are not compact devices. On the contrary, short fiber lasers [1] and, in particular, waveguide lasers [2] are compact devices with monolithic structures which have the potentialities to satisfy all the requirements previously outlined. However, looking at the literature up to now only few mW output level robust single-frequency waveguide laser were demonstrated.
© 2007 IEEE
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