Classification for Passive Fiber Optic Seals

1996 ◽  
Author(s):  
Keyword(s):  
Fiber Optic ◽  
Passive Fiber

Optoelectronic selector switch for rf/microwave passive fiber optic networks

1995 ◽  
Author(s):  
Robert Y. Loo ◽  
James H. Schaffner ◽  
Gregory L. Tangonan ◽  
V. L. Jones
Keyword(s):  
Fiber Optic ◽  
Selector Switch ◽  
Passive Fiber ◽  
Fiber Optic Networks ◽  
Rf Microwave

scholarly journals Анализатор спектра флуоресценции на основе оптоволоконного Y-циркулятора

2018 ◽  
Vol 44 (14) ◽  
pp. 50
Author(s):  
Э.К. Алгазинов ◽  
В.А. Шульгин ◽  
И.А. Лавриненко ◽  
А.А. Сирота
Keyword(s):  
Experimental Investigation ◽  
Fiber Optic ◽  
Laser Induced Fluorescence ◽  
Biological Media ◽  
Passive Fiber ◽  
Radiation Losses ◽  
Probe Analysis ◽  
Optical Beams ◽  
Lif Spectroscopy

AbstractWe consider a method of probe analysis employing fiber-optic a composite Y-circulator design for the implementation of laser-induced fluorescence (LIF) spectroscopy diagnostics. The proposed principle of the LIF analyzer is based on spatially separated directed optical beams of excitation and fluorescence radiations. Conditions of the effective Y-circulator operation as a passive fiber-optic switch are determined. Experimental investigation of the switched radiation losses is performed. An example of using the proposed analyzer for LIF diagnostics of biological media is presented.

scholarly journals Study on a New Program of Passive Fiber Optic Current Sensor

2012 ◽  
Vol 29 ◽  
pp. 2874-2878
Author(s):  
Danping Jia ◽  
Wei Xue ◽  
Jinhui Chen ◽  
Limin Zhao
Keyword(s):  
Fiber Optic ◽  
Current Sensor ◽  
Passive Fiber

Automated Multi-Diode Laser System for WDM Couplers Insertion Loss Measurements

2012 ◽  
Vol 2 (3) ◽  
pp. 1-7 ◽  
Author(s):  
Sami D. Alaruri
Keyword(s):  
Standard Deviation ◽  
Measurement System ◽  
Insertion Loss ◽  
Fiber Optic ◽  
Laser System ◽  
Internal Standards ◽  
Loss Measurement ◽  
Passive Fiber ◽  
Optical Attenuators ◽  
Variable Optical Attenuators

Insertion loss is an important parameter used to characterize passive fiber-optic components, such as WDM couplers and variable optical attenuators. This article describes an automated insertion loss measurement system which incorporates 980 nm, 1310 nm, 1529 nm and 1561 nm DFB lasers and two internal fiber optic standards. Insertion loss measurements collected with the system for WDM couplers and internal standards are presented. The system repeatability was validated by measuring the insertion loss for a WDM coupler six times at 980 nm, 1310 nm, 1529 nm and 1561 nm over 3 days period. The standard deviation calculated for the insertion loss measurements is less than 0.11 dB and the %CV is less than 1%.

Instrumentation systems for passive fiber optic chemical sensors

1992 ◽  
Author(s):  
Douglas J. Ferrell ◽  
Jeremy M. Lerner ◽  
Robert A. Lieberman ◽  
Toni B. Quintana ◽  
Edward M. Schmidlin ◽  
...  
Keyword(s):  
Chemical Sensors ◽  
Fiber Optic ◽  
Passive Fiber ◽  
Fiber Optic Chemical Sensors

A wideband noise-like transmitter approach for underwater lidar using diode lasers and passive fiber optic processors

2015 ◽  
Author(s):  
Luke K. Rumbaugh ◽  
David W. Illig ◽  
Mahesh K. Banavar ◽  
William D. Jemison ◽  
Brandon Cochenour
Keyword(s):  
Fiber Optic ◽  
Diode Lasers ◽  
Passive Fiber ◽  
Wideband Noise ◽  
Underwater Lidar

scholarly journals Passive Fiber Optic Evanescent Wave Sensor for the Measurement of Refractive Index at Various Temperatures using a Tunable Light Source

2019 ◽  
Vol 8 (6S) ◽  
pp. 681-691
Keyword(s):  
Refractive Index ◽  
Light Source ◽  
Evanescent Wave ◽  
Fiber Optic ◽  
Fiber Optic Sensor ◽  
Depth Of Penetration ◽  
The Core ◽  
Passive Fiber ◽  
Highly Sensitive ◽  
Shaped Glass

The study of refractive index of liquids over a range of 10oC to 60oC shows very interesting results to design and develop a highly sensitive passive fiber optic sensor based on a U-shaped glass probe. The depth of penetration of light that escaping from the core of the fiber into the cladding plays a crucial role in the development of a highly sensitive fiber optic evanescent wave sensor. The depth of penetration of an optical fiber striped off its cladding is directly related to the wavelength of the light, the index of refraction of the surrounding medium, the angle of incidence of light, the bending radius and thickness of the U-shaped probe. In the design of the sensor a U-shaped glass probe is used to replace the core of the fiber in the region of sensing, the diameter of which is same as that of the cores of a pair of insensitive fibers which in-turn connected to a tunable light source and an optical detector. The sensor is highly reliable, robust and easy to configure using multimode PCS fibers and the source operating at the wavelengths of 630nm, 660nm, 820nm and 850nm.

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