Nanoporosity effect in optical loss of single-mode polymer waveguides

2010 ◽  
Vol 49 (19) ◽  
pp. 3684 ◽  
Author(s):  
Aydin Yeniay ◽  
Renfeng Gao
Keyword(s):  
Optical Loss ◽  
Single Mode ◽  
Polymer Waveguides

scholarly journals Bragg Grating Sensors in Laser-written Single Mode Polymer Waveguides

2015 ◽  
Vol 120 ◽  
pp. 878-881 ◽  
Author(s):  
J. Missinne ◽  
A. Vasiliev ◽  
A. Elmogi ◽  
N. Teigell Beneitez ◽  
E. Bosman ◽  
...  
Keyword(s):  
Single Mode ◽  
Bragg Grating ◽  
Polymer Waveguides

scholarly journals Optical loss characterization of SEO100C electro-optic polymer within single mode rib waveguides

OSA Continuum ◽  
2019 ◽  
Vol 2 (11) ◽  
pp. 3299
Author(s):  
Evan Gawron ◽  
Michael Maurer ◽  
Christopher Middlebrook ◽  
Kevin Kellar
Keyword(s):  
Optical Loss ◽  
Single Mode ◽  
Electro Optic ◽  
Rib Waveguides

Fabrication of Mach-Zehnder Polymer Waveguides by a Direct-Drawing Technique Using a Focused Proton Beam

2013 ◽  
Vol 534 ◽  
pp. 158-161 ◽  
Author(s):  
Kenta Miura ◽  
Takahiro Satoh ◽  
Yasuyuki Ishii ◽  
Hiromu Kiryu ◽  
Yusuke Ozawa ◽  
...  
Keyword(s):  
Proton Beam ◽  
Single Mode ◽  
Next Generation ◽  
Polymer Waveguides ◽  
Proton Beam Writing ◽  
Straight Line ◽  
Drawing Technique ◽  
Microfabrication Technology

Proton beam writing (PBW) has recently attracted much attention as a next-generation microfabrication technology. This is a direct-drawing technique and does not need any masks to transfer micropatterns to sample surfaces. In our previous work, we demonstrated the first single-mode straight-line and Y-junction PMMA-based waveguides fabricated using PBW and working at λ = 1.55 μm. In this work, we fabricated the first PMMA-based Mach-Zehnder waveguides for the wavelength utilizing PBW in order to construct thermo-optic switches.

scholarly journals Dependence of optical attenuation on radiation wavelength and waveguide geometry in copper-coated optical fibers

2020 ◽  
Vol 238 ◽  
pp. 11013
Author(s):  
Pavel Cherpak ◽  
Renat Shaidullin ◽  
Oleg Ryabushkin
Keyword(s):  
Optical Fibers ◽  
Near Infrared ◽  
Optical Loss ◽  
Single Mode ◽  
Optical Losses ◽  
Radiation Losses ◽  
Optical Attenuation ◽  
Novel Approach ◽  
Laser Sources

We demonstrate a novel approach to the determination of optical loss coefficients in metal-coated fibers in a 0.4-1.9 μm wavelength range. It is based on measuring the change of temperature-dependent electrical resistance of the metal coating caused by laser radiation transmitted through the fiber. A number of single-mode and multimode metallized fibers were investigated using several laser sources operating in visible and near infrared ranges. The spectral dependencies of optical losses of copper-coated fibers were experimentally obtained. The region that corresponds to the minimum optical losses is located near 1 μm wavelength. The increase of radiation losses in 1.5-1.9 μm region is much steeper compared to polymer-coated fibers.

scholarly journals Modeling and Analysis of Opto-Fluidic Sensor for Lab-On- a-Chip Application

2017 ◽  
Author(s):  
Venkatesha M. ◽  
Chaya B. M. ◽  
Pattnaik P. K. ◽  
Narayan K.
Keyword(s):  
Continuous Flow ◽  
Microfluidic Channel ◽  
Optical Loss ◽  
Lab On A Chip ◽  
Single Mode ◽  
Fluidic Channel ◽  
Modeling And Analysis ◽  
Micro Particles ◽  
Sensing Applications ◽  
Integrated Optical

In this work modeling and analysis of an integrated opto-fluidic sensor, with a focus on achievement of single mode optical confinement and continuous flow of micro particles in the microfluidic channel for Lab-on-a Chip (LOC) sensing application is presented. This sensor consists of integrated optical waveguides, microfluidic channel among other integrated optical components. A continuous flow of micro particles in a narrow fluidic channel is achieved by maintaining the two sealed chambers at different temperatures and by maintaining a constant pressure of 1Pa at the centroid of narrow fluidic channel geometry. The analysis of silicon on insulator (SOI) integrated optical waveguide at an infrared wavelength of 1550nm for single mode sensing operation is presented. The optical loss is found to be 0.0005719dB/cm with an effective index of 2.2963. The model presented in this work can be effectively used to detect the nature of micro particles and continuous monitoring of pathological parameters for sensing applications.

scholarly journals Акустооптические модуляторы с расширенной частотной полосой для волоконно-оптических линий

2021 ◽  
Vol 91 (6) ◽  
pp. 1021
Author(s):  
В.М. Епихин ◽  
А.В. Рябинин
Keyword(s):  
Optical Fibers ◽  
Frequency Band ◽  
Switching Time ◽  
Optical Loss ◽  
Single Mode ◽  
Operating Mode ◽  
Center Frequency ◽  
Frequency Shifter ◽  
Focused Beam ◽  
Good Agreement

A modulator-frequency shifter with single-mode optical fibers for a radiation wavelength of 1064 nm has been developed and manufactured. The light beam was focused in the center of the sound column. Modulator switching time ≃ 18 ns. Operating mode: pulse, continuous. Total optical loss at center frequency: -3.2 dB. An expression for the frequency band of reception of the modulator is obtained. The estimates are in good agreement with the experimental data ≃ 40 MHz. It is shown that the use of a scheme with a focused beam makes it possible to implement a modulator with a minimum switching time ≃ (2-3) ns and a receiving frequency band ≃ (200-300) MHz.

scholarly journals Research of multisensor characteristics based on optical fiber

Doklady BGUIR ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 70-78
Author(s):  
A. O. Zenevich ◽  
S. V. Zhdanovich ◽  
H. V. Vasilevski ◽  
A. A. Lagutik ◽  
T. G. Kovalenko ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Minimum Distance ◽  
Optical Radiation ◽  
Radiation Power ◽  
Optical Loss ◽  
Single Mode ◽  
Optical Reflectometry ◽  
Optimal Values ◽  
The Impact ◽  
To Receive

The research results of multisensors based on optical fiber, the principle of which is to change the conditions of propagation of optical radiation in the optical fiber in the places where macro-bends are formed at the points of impact, are presented in the paper. The formation of macro-bends leads to an additional attenuation of the power of optical radiation propagating through the optical fiber. A single-mode optical fiber was used with the parameters, which are supported by numerous manufacturers and comply with the recommendations of ITU-T G.655. The measurements were carried out for four wavelengths of optical radiation (1310, 1490, 1550, 1625 nm), corresponding to the transparency windows of the optical loss spectrum of the optical fiber. Using optical reflectometry methods, it was determined that the amount of attenuation of optical radiation of each macro-bend formed at the point of action of the multisensor does not depend on the number of simultaneously formed macro-bends and also does not depend on the location of the point of action along the length of the multisensor. The dependences of the attenuation of the optical radiation power introduced by the macro-bends of the optical fiber on the radius, length, or angle of the macro-bends formed at the multisensory impact points are determined experimentally. The obtained dependences also allow one to determine the optimal parameters of the formed macro-bends of the multisensor to obtain the maximum range of attenuation change for each value of the wavelength. The values of the minimum distance between the impact points, the maximum number of impact points and the optimal values of the radius and angle of the optical fiber macro-bend at the impact points are determined. The results obtained provide opportunities to continue the development of multisensors that allow us to receive information about parameters from several impact points, that are located on a single optical fiber, simultaneously.

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