Electron beam pumped vertical cavity surface emitting laser

摘要

A vertical external cavity surface emitting laser (VECSEL) structure includes a heterostructure and first and second reflectors. The heterostructure comprises an active region having one or more quantum well structures configured to emit radiation at a wavelength, λlase, in response to pumping by an electron beam. One or more layers of the heterostructure may be doped. The active region is disposed between the first reflector and the second reflector and is spaced apart from the first reflector by an external cavity. An electron beam source is configured to generate the electron beam directed toward the active region. At least one electrical contact is electrically coupled to the heterostructure and is configured to provide a current path between the heterostructure and ground.

主权项

1. A vertical external cavity surface emitting laser (VECSEL) structure, comprising:
a first reflector; a second reflector; a heterostructure comprising an active region that includes one or more quantum well structures configured to emit radiation at a wavelength, λlase, in response to pumping by an electron beam, the active region disposed between the first reflector and the second reflector and spaced apart from the first reflector by an external cavity; an electron beam source configured to generate the electron beam which is directed toward the active region; and at least one electrical contact electrically coupled to the heterostructure and configured to provide a current path between the heterostructure and ground, the electrical contact configured to discharge electrons arising from the electron beam pumping of the heterostructure to ground.