US Patent Issued to ams International on April 14 for "Devices and methods for tuning vertical-cavity surface-emitting lasers with modulated bit signals" (Swiss Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,603,475, issued on April 14, was assigned to ams International AG (Jona, Switzerland).

"Devices and methods for tuning vertical-cavity surface-emitting lasers with modulated bit signals" was invented by Colin Steele (Jona, Switzerland), Catalin Lazar (Jona, Switzerland) and Goran Stojanovic (Jona, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A tuning arrangement for a vertical-cavity surface-emitting laser (VCSEL) may include a delta sigma modulator and a current source. The delta sigma modulator may be configured to generate a bitstream comprising bit signals, and the current source may be configured to provide a current to the VCSEL in ...