Combined CW ring single-frequency Ti:sapphire/dye laser for atom cooling and high-precision spectroscopy

2007 ◽  
Author(s):  
Sergey Kobtsev ◽  
Vladimir Baraulya ◽  
Vladimir Lunin
Keyword(s):  
High Precision ◽  
Dye Laser ◽  
Single Frequency ◽  
Precision Spectroscopy ◽  
Atom Cooling

scholarly journals High-precision coseismic displacement estimation with a single-frequency GPS receiver

2015 ◽  
Vol 202 (1) ◽  
pp. 612-623 ◽  
Author(s):  
Bofeng Guo ◽  
Xiaohong Zhang ◽  
Xiaodong Ren ◽  
Xingxing Li
Keyword(s):  
High Precision ◽  
Single Frequency ◽  
Gps Receiver ◽  
Coseismic Displacement ◽  
Displacement Estimation

Study on A High-Precision Digital Temperature-Control System for All-Solid-State Single-Frequency Green Laser

2015 ◽  
Vol 42 (9) ◽  
pp. 0902010
Author(s):  
靳晓丽 Jin Xiaoli ◽  
苏静 Su Jing ◽  
靳丕铦 Jin Pixian ◽  
王文哲 Wang Wenzhe ◽  
彭堃墀 Peng Kunchi
Keyword(s):  
Control System ◽  
Solid State ◽  
High Precision ◽  
Temperature Control ◽  
Green Laser ◽  
Single Frequency ◽  
Temperature Control System

The Analysis and Design of a Large Stroke with High-Precision Polarized Laser Interferometer System

2016 ◽  
Vol 679 ◽  
pp. 129-134
Author(s):  
Wan Duo Wu ◽  
Qiang Xian Huang ◽  
Chao Qun Wang ◽  
Ting Ting Wu ◽  
Hong Xie
Keyword(s):  
High Precision ◽  
Measurement Accuracy ◽  
Laser Interferometer ◽  
Laser Interferometry ◽  
Phase Shifting ◽  
Single Frequency ◽  
Rejection Method ◽  
The Common ◽  
Frequency Laser ◽  
Polarization Phase

The technique utilizing single-frequency laser interferometry has very high measurement accuracy, but it has rigorous requirements for optical design which is affected by many factors. In order to achieve single-frequency laser interferometry with large stroke and high precision, the integral layout, the polarization phase shifting technique and the common mode rejection method are adopted to design the length interferometry system. This paper analyzes factors and design requirements which affect measurement accuracy with large stroke. Based on polarization phase shifting technique, the system employs the four-beam-signal detection technique and the common mode rejection method, to make a differential processing of four mutually orthogonal signals. Thus, the influences of zero-drift of intensity and environmental change on system are reduced. Combined with a 200 phase subdivision, the system achieves the resolution with 0.8 nm. Under the VC++ environment, the displacement measurement results are compensated and corrected according to the environmental parameters. Compared with the Renishaw XL-80 laser interferometer, the system has better stability in short term. In the measuring range of 60 mm, the effectiveness of the system is verified.

scholarly journals Low-cost, high-precision, single-frequency GPS–BDS RTK positioning

GPS Solutions ◽  
2017 ◽  
Vol 21 (3) ◽  
pp. 1315-1330 ◽  
Author(s):  
Robert Odolinski ◽  
Peter J. G. Teunissen
Keyword(s):  
High Precision ◽  
Low Cost ◽  
Single Frequency

Efficient photonic reformatting of stellar light for high precision spectroscopy

2016 ◽  
Author(s):  
D. G. MacLachlan ◽  
R. J. Harris ◽  
I. Gris-Sánchez ◽  
T. J. Morris ◽  
D. Choudhury ◽  
...  
Keyword(s):  
High Precision ◽  
Precision Spectroscopy
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