METHOD FOR PRODUCING DIRT-FREE LASER MIRRORS AND FOR THEIR PASSIVATION Russian patent published in 2007 - IPC H01L21/3065 H01S5/28 

Abstract RU 2303317 C2

FIELD: production of dirt-free laser mirrors.

SUBSTANCE: proposed method for producing dirt-free surfaces of materials chosen from group incorporating GaAs, GaAlAs, InGaAs, InGaAsP, and InGaAs on mirror facets of chip for GaAS based laser resonators includes shearing of laser mirror facet in ambient atmosphere incorporating normal air, dry air, or dry nitric media. Oxides and other pollutants produced in the course of ambient atmosphere impact on mirror facets are removed by dry etching in vacuum. Then natural nitride layer is grown on mirror facets using nitrogen treatment. Such facet treatment ensures minimized light absorption and surface recombination.

EFFECT: facilitated procedure, enhanced economic efficiency and yield due to high reproducibility.

37 cl, 5 dwg

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RU 2 303 317 C2

Authors

Lindstrem L. Karsten V.

Blikst Peter N.

Sederkhol'M Svante Kh.

Srinivasan Anand

Karl'Strem Karl-Fredrik

Dates

2007-07-20Published

2002-08-09Filed