Antireflection coatings for injection lasers

Details Antireflection coatings for injection lasers Antireflection coatings for injection lasers

1974-02-05

1976-03-09

Bauer, Edward S.

Oscillators

Molecular or particle resonant type

350 1, 350164, H01S 300

Patent

active

039434621

ABSTRACT:
Antireflection dielectric coatings on the output face of an injection laser provide a negative electric vector amplitude reflection coefficient which increases the obtainable power output. Like coatings are applied to the opposite reflective face. The output layers are preferably three quarter-wavelength coatings of titania, silica and titania. The opposite reflective layers are two quarter-wavelength coatings of titania and silica and an outer metallic layer of aluminum. Silicon monoxide can also be used in place of titania.

REFERENCES:
patent: 3849738 (1974-11-01), Hakki
Ettenberg et al., "Control of Facet Damage in GaAs Laser Diodes," Applied Physics Letters, Vol. 18, pp. 571-573, 6-15-71.

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