Ultra-Low phase noise measurement of microwave sources using carrier suppression enabled by a photonic delay line

2021 ◽  
pp. 1-1
Author(s):  
Xichen Wang ◽  
X Steve Yao ◽  
Peng Hao ◽  
Ting Feng ◽  
Xinwei Chen ◽  
...  
2015 ◽  
Vol 40 (7) ◽  
pp. 1326 ◽  
Author(s):  
Dengjian Zhu ◽  
Fangzheng Zhang ◽  
Pei Zhou ◽  
Shilong Pan

Optik ◽  
2014 ◽  
Vol 125 (7) ◽  
pp. 1868-1870 ◽  
Author(s):  
Jun Hong ◽  
Lan Yin

2007 ◽  
Vol 112 (5) ◽  
pp. 1107-1111 ◽  
Author(s):  
P. Salzenstein ◽  
J. Cussey ◽  
X. Jouvenceau ◽  
H. Tavernier ◽  
L. Larger ◽  
...  

2015 ◽  
Vol 719-720 ◽  
pp. 869-874
Author(s):  
Zu Lin Li ◽  
Yuan Yao ◽  
Jun Hong

In this paper, the effect of device flicker noise on the characteristics of both opto-electronic oscillator and Photonic-delay homodyne phase noise measurement system is analyzed. An analytic theory model of opto-electronic oscillator (OEO) is derived and verified by experiments in this paper, where the flicker and white noise are both considered. The sensitivity of Photonic-delay homodyne phase noise measurement system is improved by using high-linear photodetector and low-phase noise amplifier resulting from decreasing systematic phase noise.


Electronics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 857
Author(s):  
Mehmet Alp Ilgaz ◽  
Bostjan Batagelj

High-frequency signal oscillators are devices needed for a variety of scientific disciplines. One of their fundamental requirements is low phase noise in the micro- and millimeter wave ranges. The opto-electronic oscillator (OEO) is a good candidate for this, as it is capable of generating a signal with very low phase noise in the micro- and millimeter wave ranges. The OEO consists of an optical resonator with electrical feedback components. The optical components form a delay line, which has the advantage that the phase noise is independent of the oscillator’s frequency. Furthermore, by using a long delay line, the phase noise characteristics of the oscillator are improved. This makes it possible to widen the range of possible OEO applications. In this paper we have reviewed the state of the art for OEOs and micro- and millimeter wave signal generation as well as new developments for OEOs and the use of OEOs in a variety of applications. In addition, a possible implementation of a centralized OEO signal distribution as a local oscillator for a 5G radio access network (RAN) is demonstrated.


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