Fishing – trapping – and vermin destroying
Patent
1990-10-20
1991-12-10
Chaudhuri, Olik
Fishing, trapping, and vermin destroying
437987, H01L 2120
Patent
active
050717863
ABSTRACT:
A multiple wavelength semiconductor laser with two active layers separated by either a p-cladding layer of a p-n junction cladding layers. A p-disordered region and a n-disordered region extend through one of the active layers and into the intermediate cladding layer. A lateral waveguide is formed between the disordered regions in the active layer and a deep waveguide is formed beneath the p-disordered region in the other active layer. Since both active layers generate lightwaves at different wavelengths, forward-biasing the p-disordered region can cause either or both waveguides to emit radiation but at different wavelengths. The deep waveguide can also be a buried heterostructure laser.
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Bunch William D.
Chaudhuri Olik
Propp William
Xerox Corporation
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