Abstract

We demonstrate the suitability of a simple continuous-wave-pumped transition-metal-ion-doped waveguide as a broadband light source in the wavelength region 600–1000  nm for interferometric applications. Spatially coherent (single mode in the confined direction), spectrally broadband 130nm FWHM luminescence with output powers of several hundreds of microwatts is obtained from a Ti:sapphire planar waveguide with incident pump powers from an Ar-ion laser of up to 1  W. This result represents an increase in power by several orders of magnitude from previously reported simple broadband light sources in this wavelength range.

© 2001 Optical Society of America

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