Two-dimensionally tunable microwave signal generation based on optical frequency-to-time conversion.
We propose and experimentally demonstrate an all-fiber-based approach to generate microwave signals with tunable frequency and pulse width. The adjustable optical power spectrum can be achieved using a spectrum shaper, consisting of a variable differential-group-delay element and a bandwidth-tunable optical filter. Through the frequency-to-time conversion in the dispersive fiber, the frequency and pulse width of the obtained microwave signals can be user defined by modifying the optical spectrum shape.
Ye
Jia
J
Center for Information Photonics & Communications, School of Information Science and Technology,Southwest Jiaotong University, Chengdu, 610031, Sichuan, China.
Yan
Lianshen
L
Pan
Wei
W
Luo
Bin
B
Zou
Xihua
X
Yi
Anlin
A
Yao
Xiaotian Steve
XS