Coherent light generators – Particular resonant cavity – Unstable resonator
Patent
1994-05-31
1996-09-24
Scott, Jr., Leon
Coherent light generators
Particular resonant cavity
Unstable resonator
372 96, 372102, 372 22, 372 64, H01S 308
Patent
active
055598242
ABSTRACT:
A high-power unstable resonator semiconductor laser (14) emits optical output of greater than 50 mW in a wavelength range of 700-1100 nm. A grating (116,136) may be positioned external to URSL (14) to control the spectral bandwidth and wavelength output of the waveguide pumping beam (74). Alternatively, URSL (14) may be fabricated with a distributed feedback (DFB) grating or a distributed Bragg reflector (DBR). Infrared waveguide pumping beam (74) generated by such a high-power unstable resonator semiconductor laser (14) is coupled into a nonlinear waveguide (28) and converted to visible or near ultraviolet output (100) through the process of second-harmonic generation.
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Baird Brian
DeFreez Richard
Electro Scientific Industries Inc.
Jr. Leon Scott
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