Device for producing coherent radiation

Details Device for producing coherent radiation Device for producing coherent radiation

H - Electricity

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H01S 3/09 (2006.01) H01J 1/30 (2006.01) H01J 1/308 (2006.01) H01S 3/0959 (2006.01)

Patent

CA 1257676

17 ABSTRACT: Device for producing coherent radiation. By means of electrons (7) of high energy produced by a semiconductor cathode (3), population inversion is obtained in an active layer (13) of a laser structure (11). In this manner, laser action is obtained, which offers advantages especially with II-VI materials which emit radiation of a wavelength shorter than the usual III-V materials, and which do not permit the desired population inversion to be obtained in the same manner as in III-V materials, by means of current injection across a pn junction. The semiconductor cathode (3) and the laser structure (2,11) can be both arranged in mutual separation in a vacuum tube (5) or be realized in one semiconductor body. The short-wave laser is especially advantageous for CD,DOR and VLP applications.

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