Direct welding with arc discharging to joint quart optical fiber to multicomponent glass mold lens (small factor fiber collimator with new push-pull welding method)

2011 ◽  
Vol 50 (3) ◽  
pp. 033401 ◽  
Author(s):  
Koichi Nishizawa
Keyword(s):  
Optical Fiber ◽  
Glass Mold ◽  
Welding Method ◽  
Fiber Collimator ◽  
Multicomponent Glass ◽  
Small Factor

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.

Optical fiber from multicomponent glass core and silica cladding

2000 ◽  
Author(s):  
Jan Wojcik ◽  
Jan Rayss ◽  
Dominik Dorosz
Keyword(s):  
Optical Fiber ◽  
Multicomponent Glass

Gain characteristics of an Er/sup 3+/-doped multicomponent glass single-mode optical fiber

1990 ◽  
Vol 2 (9) ◽  
pp. 656-658 ◽  
Author(s):  
M. Yamada ◽  
M. Shimizu ◽  
M. Horiguchi ◽  
M. Okayasu ◽  
E. Sugita
Keyword(s):  
Optical Fiber ◽  
Single Mode ◽  
Single Mode Optical Fiber ◽  
Multicomponent Glass

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.

Research on Automatic Technology of Debugging and Assembling Optical Fiber Collimator

2014 ◽  
Vol 568-570 ◽  
pp. 1307-1311
Author(s):  
Xiao Hua Wang ◽  
Qiu Xin Zheng ◽  
Qian Zhao ◽  
Li Li ◽  
Jian Qin Guo
Keyword(s):  
Optical Fiber ◽  
Mass Production ◽  
Automation System ◽  
Automatic Assembly ◽  
Coupling Loss ◽  
Beam Spot ◽  
Spot Radius ◽  
Assembly Technology ◽  
Fiber Collimator ◽  
Beam Transmission

In order to improve the efficiency of debugging and assembling optical fiber collimator and to facilitate mass production, Automatic assembly technology of optical fiber collimator was studied. A new method was proposed to assemble optical fiber collimator by detecting minimal receiving beam spot. First, the relation was analyzed between the detected spot radius and the distance from the emitting end to reception end according to Gaussian beam transmission theory. Then, an automation system was designed to detect the minimal receiving beam spot when the distance was suitable. The optical fiber collimator was successfully assembled after being fixed. Experimental results show that the coupling loss between two collimators is less than 0.53dB when the wavelength of the transmitting light is 1550nm and the distance between two collimators is less than 1 mm.

Nanospot welding of carbon nanotubes using near-field enhancement effect of AFM probe irradiated by optical fiber probe laser

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56677-56685 ◽  
Author(s):  
Lijun Yang ◽  
Jianlei Cui ◽  
Yang Wang ◽  
Chaojian Hou ◽  
Hui Xie ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Optical Fiber ◽  
Near Field ◽  
Field Enhancement ◽  
Probe Laser ◽  
Enhancement Effect ◽  
Fiber Probe ◽  
Optical Fiber Probe ◽  
Welding Method ◽  
Afm Probe

The carbon nanotubes interconnection can be achieved by the new nanospot welding method with the near-field enhancement effect of the metallic AFM probe tip irradiated by optical fiber probe laser.

Bending loss formulas for step-index optical fiber and their applicable regions

1981 ◽  
Vol 64 (10) ◽  
pp. 95-103
Author(s):  
Kiyonobu Kusano ◽  
Shigeo Nishida
Keyword(s):  
Optical Fiber ◽  
Step Index ◽  
Bending Loss
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