Novel packaging method for optical fiber collimator based on image processing

2009 ◽  
Author(s):  
Jianxin Qiu ◽  
Pin Zhong
Keyword(s):  
Image Processing ◽  
Optical Fiber ◽  
Fiber Collimator

Loss Characteristics Analysis and Optimization of an Off-Axis Rotary Optical Fiber Communication System

2014 ◽  
Vol 596 ◽  
pp. 788-793 ◽  
Author(s):  
Xiao Hua Wang ◽  
Qian Zhao ◽  
Li Li ◽  
Jie Ding ◽  
Qiu Xin Zheng ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Communication System ◽  
High Speed ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Experiment Platform ◽  
Optical Fiber Communication System ◽  
Characteristics Analysis ◽  
Fiber Collimator ◽  
The Stability

The losses of the off-axis rotary optical fiber communication system were derived from optical fiber coupling, three kinds of misalignments between optical fiber collimators (Axial separation Z0, lateral offset X0, angular tilting θ), incomplete alignment of optical fiber collimator during rotation and system tremble caused by high speed rotating. Some measures were taken to reduce the loss. The thermally expanded core fiber collimator cut down the influence of axial separation and angular tilting. The position of the optical fiber collimator on the flange was adjusted and infrared right angle prisms were installed to reduce the losses during rotation of the system. In addition, improving the precision and optimizing device of mechanical structure can increase the stability of the whole experiment platform and decrease the losses.

Measurement of optical fiber parameters and thermal core diffusion characteristics by digital image processing

2018 ◽  
Vol 57 (15) ◽  
pp. 4331 ◽  
Author(s):  
F. Chavez-Gutierrez ◽  
A. Martinez-Rios ◽  
D. Toral-Acosta ◽  
D. Torres-Armenta ◽  
J. A. Guerrero-Viramontes
Keyword(s):  
Image Processing ◽  
Optical Fiber ◽  
Digital Image Processing ◽  
Digital Image ◽  
Diffusion Characteristics

Novel Optical Fiber Gas Sensing System Based on FBG Filtering

2011 ◽  
Vol 295-297 ◽  
pp. 1021-1028
Author(s):  
Shu Tao Wang ◽  
Peng Wei Zhang ◽  
Le Gong ◽  
Xiao Qing Shao
Keyword(s):  
Optical Fiber ◽  
Gas Sensing ◽  
Light Signal ◽  
Processing Unit ◽  
Optical Fiber Coupler ◽  
Fiber Coupler ◽  
Sensing System ◽  
Gas Detector ◽  
Fiber Collimator ◽  
Difference Absorption

Based on law of Beer-Lambert, a novel optical fiber gas sensing system is designed to determine the concentration of gas. The narrow-band filtering characteristic of optical fiber Bragg grating is used by this system to produce the narrow spectrum light signal which is wanted in difference absorption measuring. The system has full optical fiber structure, which is mainly composed by super luminescent emitting diode (SLED), optical fiber of 10km, optical fiber gas detector, optical fiber isolator, optical fiber coupler network, optical fiber detecting grating, photoelectric detector and data processing unit. The aspheric objective optical fiber collimator is adopted by this system to compose optical fiber gas sensing detector, which enhances the optic stability of the detector, diminishes the injection loss and makes the echo signal of the optical fiber detector greatly diminished. Experimental data and results show that this system has its feasibility and it can be used for real time monitoring of gas concentration in the domains of colliery and natural gas station, etc.

Recognition of optical fiber pre-warning system based on image processing

2015 ◽  
Vol 23 (2) ◽  
pp. 334-341 ◽  
Author(s):  
孙茜 SUN Qian ◽  
封皓 FENG Hao ◽  
曾周末 ZENG Zhou-mo
Keyword(s):  
Image Processing ◽  
Optical Fiber ◽  
Warning System
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