AUGUST 20259 EUROPEEUROPERECENT DEVELOPMENTS IN ADVANCED 3D SENSING APPLICATIONScontrollable polarization. Due to the optimized grating design the new polarized VCSELs achieve almost 100 percent of the efficiency compared to standard non-polarized VCSELs. TRUMPF particularly has developed the patented technology of VCSELs with stable polarization for high volume applications. The polarization is locked by a surface grating etched directly into the GaAs. Next generation products in development will address dual polarization on one VCSEL for even more advanced applications and trend towards miniaturization. 3D Sensing in AutomotiveThe automotive sector is another growing application field for VCSELs. The trend towards autonomous driving is supported by advanced VCSEL solutions that can take over applications as in-cabin sensing, driver monitoring or LiDAR. Systems designers get great flexibility with the so called ViBO (VCSEL with integrated Optics) technology developed by TRUMPF. ViBO comes with monolithically integrated optics and creates lighting profiles to illuminate objects at both close and long rates. The very small form factor of ViBO also allows easy integration into system designs. As for applications such as LiDAR higher output power is needed, VCSELs come with the general advantage of easy scalability of the individual emitters to very densely packed arrays. Hence this scales the optical power accordingly to serve these applications. By the way VCSELs and photodiodes also support data transfer in cars and are main components for in-vehicle optical networks, another application field TRUMPF is addressing.New 940 nm emitting VCSEL array with twelve emittersNew generation of 940 nm emitting VCSEL-array with 12 emitters for high optical output power to enhance the quality in proximity sensing and laser auto focus applications. Polarization controlled VCSELThe polarization is locked by a surface grating that is etched directly into the GaAs. Polarization improves the illumination quality and resolution in demanding 3D illumination applications.ViBO (VCSEL with Integrated Backside Optics)Cost-effective and easy to integrate VCSEL array technology with monolithically integrated micro-optical elements. VCSELs are attractive as they come with a small form factor and the option to integrate various functions
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