scholarly journals Optical Fiber Time Delay Comparison Between NIST and LAMETRO

Author(s):  
Tasshi Dennis ◽  
J. Jimenez

We describe the results of a bilateral measurement comparison of optical fiber time delay between the National Institute of Standards and Technology (NIST, USA) and Laboratorio de Metrología, Instituto Costarricense de Electricidad (LAMETRO-ICE, Costa Rica), which was conducted on a single-mode optical fiber reference spool at wavelengths of 1310 nm and 1550 nm. The measurement results showed the largest difference to be less than 0.93 ns, which is within the combined standard uncertainty (coverage factor k = 1) for the measurement systems at the two laboratories.

1983 ◽  
Vol 22 (7) ◽  
pp. 979 ◽  
Author(s):  
Nori Shibata ◽  
Yutaka Katsuyama ◽  
Yutaka Mitsunaga ◽  
Mitsuhiro Tateda ◽  
Shigeyuki Seikai

2020 ◽  
Vol 4 (1) ◽  
pp. 39-45
Author(s):  
Alex Taufiqurrohman Zain

Photodiode is a type of photodetector. P-I-N (PIN) link photodiode was chosen in this study. This selection is based on high sensitivity and rapid response to any changes in light. BPW 34 type photodiode is used as a photodetector and RGB bright LED as its light source. The selection of RGB bright LEDs is based on its ability to automatically change the beam spectrum based on bit changes. As a medium for propagating light, a single mode optical fiber is used. In addition to designing hardware, this research also designs applications through Arduino IDE 1.0.4 and LabVIEW 2013 so that hardware can be controlled and displayed on a PC. As a microcontroller, the Arduino UNO module was used in this study. The results of this study indicate that the rays on the RGB bright LED can be controlled through the bit system on a PC (Personal Computer), and can bring up the measurement results of sugar content through a PC.


1986 ◽  
Vol 33 (11) ◽  
pp. 1860-1861
Author(s):  
T.P. Pearsall ◽  
H. Tamkin ◽  
A. Antreasyan ◽  
N.A. Olsson ◽  
J.C. Bean

2001 ◽  
Vol 26 (4) ◽  
pp. 214 ◽  
Author(s):  
J. Zhang ◽  
Q. Li ◽  
W. Pan ◽  
S. Y. Luo ◽  
Y. L. Chen

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