Abstract
Efficient all-fibre frequency doubling of 1.5 μm pulsed fibre laser has been demonstrated. 3.6mW of second-harmonic light in fundamental mode was produced by quasiphase-matching in a 11.5cm long periodically poled germanosilicate fibre. The χ(2)-grating was fabricated by continuous periodic-UV-erasure.
© 2005 Optical Society of America
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