Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Daming Han"'
Autor:
Xiaocheng Wang, Wei Wei, Zhangweiyi Liu, Daming Han, Nan Deng, Lingwei Yang, Weilin Xie, Yi Dong
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 2, Pp 1-8 (2019)
We demonstrate a simultaneous frequency and time reference dissemination system over 80 km fiber with a phase-locked loop. The phase fluctuation of the transferred radio-frequency (RF) signal is compensated by adjusting the frequency of the voltage-c
Externí odkaz:
https://doaj.org/article/d814cc7023d8460290eb8b62cbc04364
Autor:
Yi Dong, Zhangweiyi Liu, Weilin Xie, Wei Wei, Xiaocheng Wang, Nan Deng, Daming Han, Lingwei Yang
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 2, Pp 1-8 (2019)
We demonstrate a simultaneous frequency and time reference dissemination system over 80 km fiber with a phase-locked loop. The phase fluctuation of the transferred radio-frequency (RF) signal is compensated by adjusting the frequency of the voltage-c
Publikováno v:
Optics express. 28(9)
We propose a phase-stable high-efficiency down-conversion approach for broadband radio frequency signals transmitted from a remote site. A high power coherent optical local oscillator signal is used at the local site to increase the conversion gain a
Publikováno v:
Optics Letters. 46:4268
We present a photonic frequency divider with a large division ratio for microwave signals up to sub-terahertz. A high-operating frequency and a large frequency division ratio have both been achieved by phase-locking a Fabry–Perot frequency comb to
Publikováno v:
ECOC
We present a broadband remote RF signal down-conversion based on an optical sideband phase-locked loop. High conversion efficiency, stable phase and good SFDR are achieved by using a microwave local oscillator with half the frequency of the RF signal
Publikováno v:
Optics letters. 43(5)
A photonics-based scheme is proposed to generate wideband linear frequency modulation pulses with broadly tunable carrier frequencies for coherent radars. The approach integrates the concept of the microwave-photonic multiplication and coherent beati
Autor:
Yi Dong, Xiaocheng Wang, Zhangweiyi Liu, Jie Qin, Daming Han, Baiyu Li, Yitian Tong, Weisheng Hu, Weilin Xie, Qian Zhou
Publikováno v:
Optics Letters. 41:3787
A photonics-based scheme is presented for generating wideband and phase-stable chirped microwave signals based on two phase-locked combs with fixed and agile repetition rates. By tuning the difference of the two combs' repetition rates and extracting