Compact optical source based on the frequency doubling of a lase

Details Compact optical source based on the frequency doubling of a lase Compact optical source based on the frequency doubling of a lase

1995-09-15

1997-03-25

Hellner, Mark

Optical: systems and elements

Optical amplifier

Dispersion compensation

359326, 359328, 372 22, G02F 135

Patent

active

056150423

ABSTRACT:
Disclosed is a compact optical source capable of emitting wavelengths (notably in the blue spectrum) which it is difficult for standard laser diodes to achieve. This source has a laser (or laser diode) emitting at a wavelength .lambda.oi, a non-linear medium (NLM) in which the phase matching condition is achieved at a wavelength .lambda.o.sub.a belonging to the set of .lambda.o.sub.i values, a mirror M.sub.l transparent at .lambda.o.sub.i /2 and reflective at .lambda.oi placed at output of the medium (NLM) By reinjecting wavelengths .lambda.oi.noteq..lambda.oa into the laser, it is possible to lock the emission of the laser to .lambda.oa and thus set up a high-powered optical source .lambda.o.sub.a /2. Application: blue sources.

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