Previous laser tuning schemes for space-based missions based on optical phase-locked loops (OPLLs) involved use of many RF electronics, complicated FPGA setups, and multiple distributed feedback lasers (DFBs) that are not fast-tunable.
NASA Goddard Space Flight Center developed a single, fast-tunable seed laser system that does not involve the use of any OPLLs. The system is based on dual sideband locking. Extra phase modulation is added onto a frequency locking system, generating artificial locking points with a known frequency offset, maintaining the stability of the selected frequency.
The system uses fewer components and simple programming requirements.
NASA is actively seeking licensees to commercialize this technology. Please contact NASA’s Licensing Concierge at