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We present the latest progress in attosecond-precision microwave synthesis, synchronization and remote transfer, based on ultralow-jitter passively mode-locked lasers. First, we show ultralow-noise 10-GHz microwave synthesis from an 80-MHz mode-locked Er-fiber laser with −157 dBc/Hz phase noise at 100-kHz offset frequency. We further show a simple all-fiber-optic stabilization method that enables...
We present two different on-chip photonic integrated circuit (PIC) structures for continuous-wave generation of millimeter and terahertz waves, each one using a different approach. One approach is the optical heterodyne method, using an on-chip arrayed waveguide grating laser (OC-AWGL) which is capable of generating a carrier at 110 GHz within the F-Band (90 GHz–140 GHz). The other structure provides...
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