Inventor
DULTZ WOLFGANG
DE36 patents
⚠️ This page may combine multiple inventors who share the name “DULTZ WOLFGANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DEUTSCHE TELEKOM AG
34 patentsUS6609139B1Aug 19, 2003
Method for generating a random number on a quantum-mechanical basis and random number generator
DEUTSCHE TELEKOM AG69 citations94
US6310991B1Oct 30, 2001
Integrated optical circuit
DEUTSCHE TELEKOM AG59 citations94
US6430345B1Aug 6, 2002
Method and device for producing a choice of either single photons or pairs of photons in an optical channel
DEUTSCHE TELEKOM AG56 citations93
US7003665B1Feb 21, 2006
Method for the secure transmission of messages
DEUTSCHE TELEKOM AG34 citations91
US6986056B1Jan 10, 2006
Method and arrangement for generating binary sequences of random numbers
DEUTSCHE TELEKOM AG23 citations91
US6748081B1Jun 8, 2004
Quantum cryptography system for a secure transmission of random keys using a polarization setting method
DEUTSCHE TELEKOM AG23 citations91
US6198557B1Mar 6, 2001
Telecommunication system having frequency-dividing optical components for the parallel processing of optical pulses
DEUTSCHE TELEKOM AG32 citations91
US5973823AOct 26, 1999
Method for the mechanical stabilization and for tuning a filter having a photonic crystal structure
DEUTSCHE TELEKOM AG49 citations91
US6529666B1Mar 4, 2003
Single-mode optical fiber
DEUTSCHE TELEKOM AG33 citations89
US6331910B1Dec 18, 2001
Arrangement and method for electrically controlling the intensity of unpolarized light
DEUTSCHE TELEKOM AG20 citations89
US6393448B1May 21, 2002
Optical random-number generator based on single-photon statistics at the optical beam splitter
DEUTSCHE TELEKOM AG31 citations86
US6636278B1Oct 21, 2003
Device for the local attenuation of the light intensity in the field of vision of a light-sensitive monitoring device
DEUTSCHE TELEKOM AG13 citations84
US7649610B1Jan 19, 2010
Method and device for reducing speckle formation on a projection screen
DEUTSCHE TELEKOM AG18 citations83
US6282333B1Aug 28, 2001
Method and device to compensate for polarization mode dispersion in an optical transmission link
DEUTSCHE TELEKOM AG15 citations81
US6947193B1Sep 20, 2005
Optical phase modulator
DEUTSCHE TELEKOM AG9 citations73
US6031588AFeb 29, 2000
Ferroelectric liquid crystal device for local reduction of light intensity in the visual field
DEUTSCHE TELEKOM AG13 citations71
US6338882B1Jan 15, 2002
Process for applying a light-blocking layer between a photoconducting layer and a mirror when manufacturing an optically addressable spatial light modulator
DEUTSCHE TELEKOM AG7 citations69
US6249350B1Jun 19, 2001
Interferometer and methods for compensation of dispersion or increase in spectral resolution of such an interferometer
DEUTSCHE TELEKOM AG13 citations69
US6563980B1May 13, 2003
Method and device for spectral level balancing in wavelength division multiplex multi-channel systems
DEUTSCHE TELEKOM AG7 citations68
US6975800B2Dec 13, 2005
Fused silica-based optical waveguide and method for its manufacture
DEUTSCHE TELEKOM AG2 citations61
US6727491B1Apr 27, 2004
Sensor and method for detecting changes in distance
DEUTSCHE TELEKOM AG6 citations61
US6914647B1Jul 5, 2005
Electro-optical light modulator
DEUTSCHE TELEKOM AG4 citations60
US6181407B1Jan 30, 2001
Electro-optical material having a lamellar liquid crystal structure
DEUTSCHE TELEKOM AG4 citations58
US6952296B1Oct 4, 2005
Method and device for forming the intensity profile of a laser beam
DEUTSCHE TELEKOM AG4 citations56
US6649087B1Nov 18, 2003
Liquid crystalline materials for optical phase modulation
DEUTSCHE TELEKOM AG3 citations55
US5833833ANov 10, 1998
Method of preparing a pyroelectric mixture and pyroelectric device
DEUTSCHE TELEKOM AG5 citations53
US7468827B2Dec 23, 2008
Device for generating adding and subtracting digital sequences of optical pulses and method for secure transmission of information
DEUTSCHE TELEKOM AG0 citations51
US7050213B2May 23, 2006
Method and device for attenuating light as a function of intensity
DEUTSCHE TELEKOM AG0 citations48
US6941048B2Sep 6, 2005
Optical fiber transmission link having passive, directionally dependent attenuation
DEUTSCHE TELEKOM AG0 citations47
US6900874B1May 31, 2005
Device and method for the temperature-independent operation of electro-optical switches on the basis of ferroelectric liquid crystals having a deformed helix
DEUTSCHE TELEKOM AG1 citations46
US7426070B2Sep 16, 2008
Method and device for attenuating light as a function of intensity
DEUTSCHE TELEKOM AG0 citations45
US7920617B1Apr 5, 2011
Method and device for coherent addition of semiconductor laser emission
DEUTSCHE TELEKOM AG0 citations39
US7769300B1Aug 3, 2010
Reducing the distortion of optical pulses caused by polarization mode dispersion in optical communication systems
DEUTSCHE TELEKOM AG0 citations37
US6884990B2Apr 26, 2005
Method for changing the polarization of at least one of the photons emitted from a photon-pair source into various partial paths of rays, and method for optionally generating individual photons or photon pairs in an optical channel
DEUTSCHE TELEKOM AG0 citations34