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| Number | Title | Issue Date |
| 4225380 | Method of producing light emitting semiconductor display A method is provided for mass production of a monolithic light emitting semiconductor display utilizing light emitting semiconductor devices formed in a monocrystalline silicon wafer and a covering of silicon dioxide formed into lens structures for contro... | 09/30/1980 |
| 4190813 | Strip buried heterostructure laser A double heterostructure laser having a pair of opposite-conductivity-type, wide bandgap cladding layers separated by a narrower bandgap active region is characterized in that the active region includes a low-loss waveguide layer and contiguous therewith ... | 02/26/1980 |
| 4178604 | Semiconductor laser device A semiconductor laser device comprises an n-type GaAs layer, an n-type GaAlAs layer disposed on the n-type GaAs layer, a laser active layer consisting of a p-type GaAs layer disposed on the n-type GaAlAs layer, a first p-type GaAlAs layer disposed on the ... | 12/11/1979 |
| 4121177 | Semiconductor device and a method of fabricating the same A semiconductor device of a filamentary laser is fabricated by a method including the steps of forming a first GaAlAs layer on a GaAs body, forming a laser active layer of GaAs on the first GaAlAs layer, etching the first GaAlAs layer and the laser active... | 10/17/1978 |
| 4073676 | GaAs-GaAlAs semiconductor having a periodic corrugation at an interface A semiconductor device including a GaAs layer having a periodic corrugation on a surface thereof with a GaAsAl layer disposed on the periodic corrugation is formed by contacting a solution consisting of Ga, Al and As heated at a temperature of about 700°... | 02/14/1978 |
| 4045749 | Corrugation coupled twin guide laser An electrically pumped distributed feedback grating coupled diode laser having an optical cavity containing two closely spaced layers, a first of the layers is electrically pumped and the second of the layers is corrugated. Optical wavelength radiation an... | 08/30/1977 |
| 4023993 | Method of making an electrically pumped solid-state distributed feedback laser An electrically pumped, solid-state laser device having a grating or physical periodic structure in a region, or adjacent a region, of semiconductor material that functions as a light wave guide. The spacing of the perturbations of the periodic structure ... | 05/17/1977 |
| 3993963 | Heterostructure devices, a light guiding layer having contiguous zones of different thickness and bandgap and method of making same Described is a double heterostructure (DH) junction laser in which the intermediate layer in which light is guided is composed of an active and a passive zone which are disposed in tandem along the direction of light propagation. The active zone is thin a... | 11/23/1976 |
| 3948583 | Isolation of passive devices and integration with active devices in optical waveguiding circuits The comprehensive large scale integration of thin-film optical circuits is made possible by a series of related developments. The key concept is the isolation of the high index substrate, necessary to active devices, wherever it is desired to have a passi... | 04/06/1976 |
