Generating green to red light with semiconductor lasers

Details Generating green to red light with semiconductor lasers Generating green to red light with semiconductor lasers

2007-01-04

arxiv.org/abs/physics/0701045v1

Physics

Optics

to be published on Optics Express

Scientific paper

10.1364/OE.15.001672

Diode lasers enable one to continuously cover the 730 to 1100 nm range as well as the 370 to 550 nm range by frequency doubling, but a large part of the electro-magnetic spectrum spanning from green to red remains accessible only through expensive and unpractical optically pumped dye lasers. Here we devise a method to multiply the frequency of optical waves by a factor 3/2 with a conversion that is phase-coherent and highly efficient. Together with harmonic generation, it will enable one to cover the visible spectrum with semiconductor lasers, opening new avenues in important fields such as laser spectroscopy and optical metrology.

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