ALEXANDRIA, Va., June 4 -- United States Patent no. 12,323,199, issued on June 3, was assigned to Ciena Corp. (Hanover, Md.).
"System and method for Doppler frequency shift compensation in free space optical links" was invented by Michael Y. Frankel (Pikesville, Md.) and Vladimir Pelekhaty (Baltimore).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for Doppler frequency shift compensation in free space optical links include a modulator configured to modulate a transmitter laser; a receiver including a Local Oscillator (LO) laser configured to receive a coherent signal; and circuitry configured to tune a frequency of the transmitter laser and the LO laser based on an amount of Doppler freque...