Packaging of high power semiconductor lasers
AssigneeCorning Incorporated
InventorsRoger F. Bartholomew, Paul A. Jakobson, Douglas W. Hall, Julia A. Sharps
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Abstract
A package for a high power semiconductor laser comprising a hermetically sealed container filled with a dry gaseous medium containing oxygen. The presence of oxygen in the laser atmosphere is counter to standard practice in the art which teaches the use of an atmosphere of a dry inert gas. The package also includes a getter for organic impurities, e.g., a getter composed of a porous silica or a zeolite. The hydrogen content of the materials used to form the package are reduced by baking at an elevated temperature for an extended period of time, e.g., at 150.degree. C. for 200 hours.
Claims17
A packaged high power semiconductor laser comprising:
- a semiconductor laser which comprises a GaAs substrate said laser having an operating optical power of at least 50 milliwatts;
- a getter tier adsorbing or absorbing organic impurities;
- and
- a hermetically sealed container surrounding said laser and said getter, said container being filled with a gaseous medium whose oxygen content is greater than 100 ppm.
A device for pumping an optical waveguide amplifier fiber comprising:
- a high power semiconductor laser which comprises a GaAs substrate, said laser having an operating optical power of at least 50 milliwatts;
- an optical waveguide fiber optically coupled to said high power semiconductor laser;
- a getter for adsorbing or absorbing organic impurities;
- and
- a hermetically sealed container surrounding said laser and said getter, said container being filled with a gaseous medium whose oxygen content is greater than 100 ppm.
Dependencies are inferred from the claim text.