Laser apparatus

Details Laser apparatus Laser apparatus

1977-12-16

1980-06-17

Sikes, William L.

Oscillators

Molecular or particle resonant type

331 945F, H01S 3094

Patent

active

042086361

ABSTRACT:
An infrared laser is described which is optically pumped by a pump laser operating at a visible wavelength. The polarization of the pump, is opposite from the lasing polarization, and is coupled colinearly with the laser beam by a Brewster angle polarization beam splitter in the laser beam path which reflects the pump polarization while transmitting the lasing polarization. Leakage of the pump polarization through the beam splitter provides a visible tracer propagating colinearly with the laser beam which permits the location of the invisible infrared beam and its alignment with respect to apparatus which utilizes the beam.

REFERENCES:
patent: 3438694 (1969-04-01), Reid et al.
patent: 3970960 (1976-07-01), Mollenauer
patent: 4054852 (1977-10-01), Nicolai

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