Coherent light generators – Particular component circuitry – Optical pumping
Patent
1989-11-30
1991-08-06
Mintel, William
Coherent light generators
Particular component circuitry
Optical pumping
357 16, 372 47, 372 45, 372 50, 372 43, 372 44, 372 46, H01L 3300
Patent
active
050381857
ABSTRACT:
This disclosure pertains to compound semiconductor, such as AlGaAs, surface skimming hetero-transverse junction (HTJ) lasers and improved heterojunction bipolar transistors (L-HBTs). These lasers and transistors are structurally consistent with each other, so they can be fabricated in the same set of epitaxial layers for integrated optoelectronic applications. The surface skimming characteristic of the HTJ lasers provided by this invention enables them to be configured relatively easily, without requiring any epitaxial regrowth, to operate as DFB lasers in axial or surface emitting configurations and to function as harmonic generators. Single and multiple base channel L-HBT transistors, as well as structurally corresponding single and multiple quantum well surface skimming HJT lasers are disclosed.
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Mintel William
Xerox Corporation
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