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Nebendahl

Bernd Nebendahl, Leonberg DE

Patent application numberDescriptionPublished
20100196008METHODS AND APPARATUS FOR RECOVERING FIRST AND SECOND TRANSMITTED OPTICAL WAVES FROM A POLARIZATION MULTIPLEXED OPTICAL WAVE - First and second transmitted optical waves having orthogonal polarization states are combined in a polarization multiplexed optical wave. At an optical receiver, an electrical field of the polarization multiplexed optical wave is measured. A plurality of polarization states of the polarization multiplexed optical wave is determined from the measured electrical field. From the plurality of polarization states, a transform that aligns the orthogonal polarization states of the first and second transmitted optical waves with respect to principal axes of the optical receiver is estimated. The first and second transmitted optical waves are recovered by applying the transform to one of i) the polarization multiplexed optical wave and ii) the measured electrical field of the polarization multiplexed optical wave.08-05-2010

Bernd Nebendahl, Ditzingen DE

Patent application numberDescriptionPublished
20080219301Sweep Speed Compensation - A method of manipulating a laser source, includes analyzing an optical signal generated by the laser source, evaluating on the basis of the analysis an actual indicator corresponding with an actual value of a tuning velocity of the laser source, comparing the actual indicator with a desired indicator corresponding with a desired value of the tuning velocity to detect a deviation of the actual value of the tuning velocity from the desired value of the tuning velocity, and compensating the deviation if any by manipulating at least one parameter influencing the signal of the laser source.09-11-2008
20080231861Polarization Maintaining Optical Delay Circuit - The invention relates to a polarization maintaining optical delay circuit (09-25-2008
20090003403Wavelength tunable ring-resonator - A ring laser arrangement adapted for providing an optical beam travelling on an optical path representing a closed loop, includes a laser gain medium coupled into the optical path for amplifying the optical beam by stimulated emission, and a wavelength filter coupled into the optical path for providing a wavelength selection to the optical beam travelling along the optical path. A reverse beam travelling in one direction of the optical path is utilized for controlling at least one property of a forward beam travelling in an opposite direction of the optical path.01-01-2009
20090067039Optical micro resonator - The present invention relates to a micro resonator assembly (03-12-2009

Patent applications by Bernd Nebendahl, Ditzingen DE

Jan Nebendahl, Ismaning DE

Patent application numberDescriptionPublished
20080203155Reader with Integrated Encryption - The invention concerns a device for reading and encrypting sensitive data which are to be transmitted by way of a remote transmission network (08-28-2008