Femtosecond Laser Optical Comb for Atmospheric Phase Noise Compensation

The patent uses a single local oscillator that can serve multiple optical frequencies through wavelength division multiplexing. Instead of requiring separate local oscillators and phase locked loops for each optical frequency, one local oscillator is shared across multiple frequencies, reducing device complexity while maintaining phase compensation accuracy through the use of optical comb lines that are phase-coherent across different wavelengths

The patent combines multiple optical frequencies into a single optical comb structure generated from one local oscillator. By merging the functions of multiple oscillators into a single comb-based system, the patent reduces the number of phase locked loops needed while maintaining the ability to compensate for phase changes across multiple frequencies simultaneously

The patent makes a single local oscillator serve multiple functions by generating optical comb lines at multiple frequencies. This universal oscillator replaces what would traditionally require multiple separate oscillators, reducing manufacturing cost while maintaining reliable phase noise compensation through the phase-coherent nature of comb lines across different frequencies

The patent creates multiple optical frequency copies from a single local oscillator using optical frequency combs. Instead of manufacturing multiple physical oscillators, the system generates coherent frequency copies through the comb structure, reducing manufacturing complexity and cost while maintaining the phase compensation capabilities needed for reliable communication