US Patent Issued to TRANSWAVE PHOTONICS on May 13 for "Quantum cascade laser devices with improved heat extraction" (American, German Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,300,965, issued on May 13, was assigned to TRANSWAVE PHOTONICS LLC (Austin, Texas).

"Quantum cascade laser devices with improved heat extraction" was invented by Seungyong Jung (Cedar Park, Texas) and Mikhail A. Belkin (Munich).

According to the abstract* released by the U.S. Patent & Trademark Office: "Structures and methods for reducing the thermal resistance of quantum cascade laser (QCL) devices and QCL-based photonic integrated circuits (QCL-PIC) are provided, wherein, in various embodiments, the native substrate of QCL and QCL-PIC devices is replaced with a foreign substrate that has very high thermal conductivity, for example, using wafer bonding methods. In some examples, waf...