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Gokay
Cem Gokay, Centerville, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20090274189 | SCALABLE THERMALLY EFFICIENT PUMP DIODE SYSTEMS - Scalable, thermally efficient pump diode systems. These systems may include an arrangement of pump diodes and thermally conductive spacers mounted within a single indentation in a substrate or substrate clamps, so as to provide enhanced heat removal from the system. These systems also may include a plurality of such pump diode assemblies mounted, in a symmetric or partially symmetric arrangement, around a lasing medium in a diode pumped laser system, to improve heat removal and/or excitation of the medium. | 11-05-2009 |
M. Cem Gokay, Dayton, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20110075687 | SCALABLE, EFFICIENT LASER SYSTEMS - A laser comprises an end pump light source and a gain medium having a first end, a second end, and four sides comprising a first, a second, a third, and a fourth side. The end pump light source is optically coupled to the first end and pumps the gain medium. The first side and the third side are tapered inwardly from the first end to the first end to the second end at a taper angle β relative to a longitudinal lasing axis and have a polished finish capable of reflecting light inside the gain medium. The second side and the fourth side are substantially parallel to the longitudinal lasing axis have a ground blasted finish. The first side is also tilted inwardly at a slant angle α from the fourth side to the second side. A laser beam R | 03-31-2011 |
M. Cem Gokay, Centerville, OH US
| Patent application number | Description | Published |
|---|---|---|
| 20110069731 | SCALABLE THERMALLY EFFICIENT PUMP DIODE ASSEMBLIES - Scalable, thermally efficient pump diode systems. These systems may include a first substrate having a plurality of grooves in alignment with a second substrate having a plurality of grooves. A first single emitter diode laser (“emitter”) may be disposed between the first substrate and the second substrate and aligned between two of the plurality of such grooves. Additional emitters or spacers may be disposed adjacent the first emitter such that at least one groove separates the elements (emitters/spacers). The grooves, which may comprise shallow scribes, channels, and/or other isolation structures, provide electrical isolation between adjacent emitters and/or spacers. A conductive layer may be disposed between the emitter(s) and the substrate(s), in electrical contact with each emitter, to provide power for operation of the emitters. A plurality of such assemblies, in a one-dimensional or a two-dimensional configuration, may be mounted, in a parallel or serial electrical power drive arrangement, adjacent a lasing medium to improve heat removal and/or to provide more efficient excitation of the medium. | 03-24-2011 |
Saldamli Gokay, Suwon-Si KR
| Patent application number | Description | Published |
|---|---|---|
| 20090100120 | Modular multiplication method, modular multiplier and cryptosystem having the same - Provided are a modular multiplication method with an improved arithmetic operation, a modular multiplier and a cryptograph calculating system having the modular multiplier. The modular multiplication method comprises performing a first arithmetic operation including a first multiplication on a first bit string of a multiplicand and a first bit string of a multiplier and a first reduction for eliminating partial bits of the first multiplication result, performing a second arithmetic operation including a second multiplication on a second bit string of the multiplicand and a second bit string of the multiplier and a second reduction for eliminating partial bits of the second multiplication result, and calculating a modular multiplication result using the result of the first arithmetic operation and the result of the second arithmetic result. The first arithmetic operation and the second arithmetic operation are independently performed. | 04-16-2009 |