Lynn & Lynn
Broadband light source using rare earth doped glass waveguide
 A rare-earth doped glass waveguide is optically pumped to produce superfluorescent light. The waveguide is formed in a glass substrate. The pump light is input to a first end of the optical waveguide, and the output is emitted from the other end. A grating formed on the waveguide near the output end reflects the pump light to separate the pump light from the output light. 
Litton Systems, Inc.
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Sidney X. Y. Chin-Lung
Huang Chang