Generation of quaternary-amplitude microwave signals by using a new optical heterodyne technique

2012 ◽  
Vol 54 (12) ◽  
pp. 2738-2743 ◽  
Author(s):  
A. T. P. Villena ◽  
S. Arismar Cerqueira ◽  
Marcelo L.F. Abbade ◽  
H. E. Hernandez-Figueroa ◽  
Hugo L. Fragnito
Keyword(s):  
Optical Heterodyne ◽  
Microwave Signals ◽  
Heterodyne Technique

Optical heterodyne technique for generating and distributing microwave signals

2010 ◽  
Author(s):  
A. García-Juárez ◽  
I. E. Zaldívar-Huerta ◽  
G. Aguayo-Rodríguez ◽  
J. Rodríguez-Asomoza ◽  
R. Gómez-Colín ◽  
...  
Keyword(s):  
Optical Heterodyne ◽  
Microwave Signals ◽  
Heterodyne Technique

scholarly journals Effective Generation of Milliwatt-Level Sub-Terahertz Wave for Nonlinear Response Measurement of Two-Dimensional Material by Optical Heterodyne Technique

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Shuqing Chen ◽  
Zhiqiang Xie ◽  
Junmin Liu ◽  
Yanliang He ◽  
Yao Cai ◽  
...  
Keyword(s):  
Nonlinear Response ◽  
Modulation Depth ◽  
Terahertz Wave ◽  
Saturable Absorption ◽  
Optical Heterodyne ◽  
Two Dimensional ◽  
Response Measurement ◽  
Microwave Source ◽  
Terahertz Band ◽  
Heterodyne Technique

By using optical heterodyne technique, we demonstrated the stable emission of sub-terahertz wave with the frequency ranging from 88 GHz to 101 GHz, which can operate as microwave source for nonlinear response measurement system. Mutual frequency beating of two well-separated sideband signals at a 0.1 THz photo-detector (PD) allows for the generation of sub-terahertz signal. Based on this approach, we have achieved the radiation of 0.1 THz wave with power up to 4 mW. By transmittance measurement, two-dimensional nanomaterial topological insulator (TI: Bi2Te3) shows saturable absorption behaviors with normalized modulation depth of 47% at 0.1 THz. Our results show that optical heterodyne technique could be developed as an effective microwave source generation for nonlinear measurement at sub-terahertz, even terahertz band.

Frequency Stabilization of Pulsed Injection-Seeded OPO Based on Optical Heterodyne Technique

2018 ◽  
Vol 35 (2) ◽  
pp. 024201 ◽  
Author(s):  
Xiao Chen ◽  
Xiao-Lei Zhu ◽  
Shi-Guang Li ◽  
Xiu-Hua Ma ◽  
Wei Xie ◽  
...  
Keyword(s):  
Frequency Stabilization ◽  
Optical Heterodyne ◽  
Pulsed Injection ◽  
Heterodyne Technique
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