| Patent Number |
Title Of Patent |
Date Issued |
| 6890778 |
Vertical cavity surface emitting laser and a method of fabrication thereof |
May 10, 2005 |
| An electrically pumped VCSEL and a method of its fabrication are presented. The VCSEL comprises an active cavity material sandwiched between top and bottom DBR stacks, the top DBR having at least one n-semiconductor layer. The device defines an aperture region between the structured surf |
| 6828168 |
Method of fabrication of a micro-electromechanically tunable vertical cavity photonic device |
December 7, 2004 |
| A tunable Fabry-Perot vertical cavity photonic device and a method of its fabrication are presented. The device comprises top and bottom semiconductor DBR stacks and a tunable air-gap cavity therebetween. The air-gap cavity is formed within a recess in a spacer above the bottom DBR s |
| 6546029 |
Micro-electromechanically tunable vertical cavity photonic device and a method of fabrication th |
April 8, 2003 |
| A tunable Fabry-Perot vertical cavity photonic device and a method of its fabrication are presented. The device comprises top and bottom semiconductor DBR stacks and a tunable air-gap cavity therebetween. The air-gap cavity is formed within a recess in a spacer above the bottom DBR s |
| 6542531 |
Vertical cavity surface emitting laser and a method of fabrication thereof |
April 1, 2003 |
| An electrically pumped VCSEL and a method of its fabrication are presented. The VCSEL comprises an active cavity material sandwiched between top and bottom DBR stacks, the top DBR having at least one n-semiconductor layer. The device defines an aperture region between the structured surf |
| 6507595 |
Vertical-cavity surface-emitting laser comprised of single laser elements arranged on a common s |
January 14, 2003 |
| A vertical-cavity surface-emitting laser device (VCSEL) comprises a plurality of VCSEL elements arranged on a common substrate, each VCSEL element comprising first mirror means and second mirror means, each having a predefined reflectivity at a predetermined wavelength, for forming an |
| 5086430 |
Phase-locked array of reflectivity-modulated surface-emitting lasers |
February 4, 1992 |
| A method of fabricating an array of vertical-cavity, surface-emitting lasers that allows the lasers to be phase-locked and the resulting device. The growth of the laterally unpatterned epitaxial vertical-cavity structure includes an upper mirror which is only partially reflective. A |
| 5078516 |
Tapered rib waveguides |
January 7, 1992 |
| A tapered single-mode rib waveguide for which only laterally patterning is required. A sublayer is disposed between the low-index substrate and the high-index rib and has an intermediate index. Preferably a thin buffer layer of very low refractive index is disposed between the rib and th |
| 5040032 |
Semiconductor superlattice heterostructures on non-planar substrates |
August 13, 1991 |
| A novel quantum-well semiconductor is described wherein the quantum well is formed by growing a thin (.ltoreq.500 .ANG.) epitaxial layer on a patterned (e.g. grooved) non-planar substrate so as to achieve thickness variations along the quantum well and hence laterally varying superlattic |
| 4974036 |
Semiconductor superlattice heterostructures on nonplanar substrates |
November 27, 1990 |
| A novel quantum well semiconductor is described wherein the quantum well is formed by growing a thin (.ltoreq.500 .ANG.) epitaxial layer on a patterened (e.g. grooved) non-planar substrate so as to achieve thickness variations along the quantum well and hence laterally varying superlatti |
| 4943133 |
Low loss semiconductor optical phase modulator |
July 24, 1990 |
| A low loss optical waveguide modulator, an essential component of opto-electronic integrated circuits which can combine optical and electronic devices on a single chip optical communication systems is described. The modulator in our embodiment consists of a sequence of epitaxial laye |
| 4922500 |
Cross-coupled quantum-well stripe laser array |
May 1, 1990 |
| A cross-coupled stripe laser array in which a substrate is formed with parallel grooves extending part way across the substrate and an area adjacent interior ends of the grooves is left planar. The orientations of the substrate and the grooves are chosen so as to produce differential |
| 4869569 |
Polarizing optical waveguides |
September 26, 1989 |
| A polarizing optical waveguide comprising a birefringent core surrounded by an isotropic medium wherein the dielectric constant of the birefrigent medium is .epsilon..sub.TE for the plane of polarization parallel to the surface of the medium and .epsilon..sub.TM for the plane of polariza |
| 4846540 |
Optical wavegide junction |
July 11, 1989 |
| An optical waveguide junction including a multimode input waveguide and a plurality of n spaced apart output waveguides, disposed on a substrate. Each of the output waveguides has a different propagation constant, (e.g., by having different widths or indices of refraction), so that the i |
| 4719632 |
Single contact tailored gain chirped arrays of diode lasers for supermode control with single-lo |
January 12, 1988 |
| An array of nonuniform semiconductor diode lasers with supermode control for achieving a single-lobed farfield pattern is described. This is accomplished by spatially segregating the fundamental supermode from the other supermodes, tailoring the spatial gain profile as as to favor the |
