Demonstration of microwave frequency shifting by use of a highly chirped mode-locked fiber laser.
We report an experimental demonstration of a photonic microwave shifter using a highly chirped mode-locked fiber laser. The system is based on dispersive compression or expansion of highly chirped optical pulses that are amplitude modulated by the microwave signal. Using this technique, we demonstrated frequency shifting of a microwave signal from 10 GHz down to 5 GHz and up to 25 GHz.
Kang
J U
JU
Naval Research Laboratory, Code 5670, 4555 Overlook Avenue, SW, Washington, DC 20375-5338, USA.
Frankel
M Y
MY
Esman
R D
RD