Scantinel Photonics Gmbh

Karlsruher Institut Fur Technologie

Sandeep Ummethala

Vladimir Davydenko

Christian Koos

Wolfgang Freude

Matthias Lauermann

Naser Hosseini

An integrated on-chip polarization rotator splitter () comprises a waveguide polarization rotator () having a first and a second layer () that form a rib waveguide () together and are both made of silicon nitride. The first layer () has a first, a second and a third section. The first layer () has a first width (w) that increases in the first section (S), is constant in the second section (S) and decreases in the third section (S). The second layer () has a second width (w) that continuously increases. The polarization rotator splitter () further includes a waveguide polarization splitter () comprising a first strip waveguide () and a second strip waveguide () that are separated by a gap (). The first and second strip waveguides () are also made of silicon nitride. The first and second strip waveguide () form an asymmetric evanescent direction coupler.

Integrated on-chip polarization rotation splitter

A device for scanning Frequency-Modulated Continuous Wave LiDAR range measurement comprises a light source that produces light having a varying frequency, a splitter that splits the light into reference light and output light, and a distribution matrix () that distributes the output light among a plurality of free space couplers that outcouple the output light into free space. A plurality of optical waveguides guide input light that was reflected at an object. A detector detects a superposition of the input light with the reference light, and a calculation unit determines the range to the object from the superposition detected by the detector. The device further comprises a common optical waveguide that is optically connected to the plurality of optical waveguides and the detector so that input light that is guided in any of the optical waveguides propagates through the common optical waveguide towards the detector without passing the distribution matrix.

Device and method for scanning frequency-modulated continuous wave (FMCW) LiDAR range measurement

A waveguide component includes a waveguide, which is at least partially transparent or translucent with respect to light and is set up in such a way that light can be conducted at least partially through the waveguide. The waveguide includes a waveguide core, a first casing region, and a second casing region. The waveguide core is formed from one or more spatially separated elements of at least one waveguide core material. The first casing region, which includes at least one electro-optical material, interacts with light guided in the waveguide. The first casing region is disposed around the one or more elements of the waveguide core. The second casing region includes at least one dielectric material. The second casing region is arranged around the first casing region and/or the waveguide core. The waveguide component further includes at least two line regions that are at least partially electrically conductive.

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Karlsruhe, Germany

Sandeep Ummethala