A novel fiber alignment shift measurement technique employing an ultra high precision laser displacement meter in laser-welded laser module packaging

2004 ◽  
Author(s):  
Yi-Cheng Hsu ◽  
Yue-Lin He ◽  
Maw-Tyan Sheen ◽  
Ying-Chien Tsai ◽  
Jao-Hwa Kuang ◽  
...  
Keyword(s):  
High Precision ◽  
Measurement Technique ◽  
Shift Measurement ◽  
Fiber Alignment ◽  
Laser Displacement Meter ◽  
Laser Module

A novel fiber alignment shift measurement and correction technique in laser-welded laser module packaging

2005 ◽  
Vol 23 (2) ◽  
pp. 486-494 ◽  
Author(s):  
Yi-Cheng Hsu ◽  
Ying-Chien Tsai ◽  
Yeh-Lin Ho ◽  
Maw-Tyan Sheen ◽  
Jao-Hwa Kuang ◽  
...  
Keyword(s):  
Shift Measurement ◽  
Fiber Alignment ◽  
Correction Technique ◽  
Laser Module

scholarly journals High precision optical fiber alignment using tube laser bending

2015 ◽  
Vol 86 (1-4) ◽  
pp. 953-961 ◽  
Author(s):  
K. G. P. Folkersma ◽  
G. R. B. E. Römer ◽  
D. M. Brouwer ◽  
J. L. Herder
Keyword(s):  
Optical Fiber ◽  
High Precision ◽  
Laser Bending ◽  
Fiber Alignment ◽  
Optical Fiber Alignment

ACCURACY OF MEASURING SYSTEMS BASED ON LASER MODULES

2020 ◽  
pp. 44-53 ◽  
Author(s):  
V. E. Makhov ◽  
A. V. Emelyanov ◽  
A. I. Potapov ◽  
V. M. Petrushenko
Keyword(s):  
High Precision ◽  
Experimental Studies ◽  
Adaptive Algorithms ◽  
Measuring Systems ◽  
Precision Measuring ◽  
Relative Coordinates ◽  
Laser Module ◽  
Absolute Coordinates ◽  
Preliminary Selection

Measuring systems using the design of laser module beams on the surface of the object under study are considered. A technique is proposed for experimental studies of the brightness structure of the study of laser modules for their subsequent testing. Adaptive algorithms for determining the type of module and distance have been developed for determining the coordinates of light marks on the surface of controlled products, ensuring the accuracy and reliability of the measurement. The need for high-precision measuring systems to carry out their preliminary selection and calibration of laser modules according to the proposed method, taking into account the range of design of light marks, is shown. It is shown in the work that the accuracy of determining the relative coordinates in the trajectory of the light marks of laser modules at a distance of 5 m for plain surfaces of the observed objects can be several times higher (0,2…0,3 mm) of the accuracy of determining their absolute coordinates (»1 mm).

High-speed and high-precision torsion sensor based on polarization-induced microwave photonic phase shift measurement

2019 ◽  
Vol 44 (14) ◽  
pp. 3462
Author(s):  
Bin Wang ◽  
Weifeng Zhang ◽  
Xinyu Fan ◽  
Jianping Yao
Keyword(s):  
Phase Shift ◽  
High Precision ◽  
High Speed ◽  
Shift Measurement ◽  
Microwave Photonic
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