| Patent application number | Description | Published |
|---|
| 20100260220 | SEMICONDUCTOR LASER DEVICE AND CIRCUIT FOR AND METHOD OF DRIVING SAME - A directly driven laser includes multiple contacts, with at least one of the contacts for injecting current into the laser such that the laser reaches at least a lasing threshold and at least one of the contacts for providing a data signal to the laser. In some embodiments a differential data signal is effectively provided to a front and a rear section of the laser, while lasing threshold current is provided to a central portion of the laser. | 10-14-2010 |
| 20110013869 | MICROMECHANICALLY ALIGNED OPTICAL ASSEMBLY - An optical assembly includes a combination of laser sources emitting radiation, focused by a combination of lenses into optical waveguides. The optical waveguide and the laser source are permanently attached to a common carrier, while at least one of the lenses is attached to a holder that is an integral part of the carrier, but is free to move initially. Micromechanical techniques are used to adjust the position of the lens and holder, and then fix the holder it into place permanently using integrated heaters with solder. | 01-20-2011 |
| 20110158272 | HIGH POWER MULTI-WAVELENGTH LASER SOURCE - An optical assembly comprises a combination of a number of single spatial mode semiconductor optical gain elements, a number of microlenses, and a wavelength-selective planar lightwave circuit (PLC) that routes light of different wavelengths from a different inputs to a single output. The microlens elements couple light from the semiconductor optical gain elements into the PLC waveguides. The positions of the microlens elements can be adjusted using lithographically fabricated micromechanical holders that are an integral part of the carrier, and are free to move initially. Micromechanical techniques are used to adjust the position of the lenses and holder, and then fix the holder it into place permanently after optimization of the optical coupling. In operation, the gain elements are activated simultaneously, and each gain element causes one wavelength of light to lase within the structure. All output wavelengths of light exit from a single output port of the PLC and are in a single spatial mode. | 06-30-2011 |
