Side coupling of multiple optical channels by spiral patterned zinc oxide coatings on large core plastic optical fibers

2016 ◽  
Vol 11 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Hazli Rafis Bin Abdul Rahim ◽  
Somarapalli Manjunath ◽  
Hoorieh Fallah ◽  
Siddharth Thokchom ◽  
Sulaiman Wadi Harun ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Optical Fibers ◽  
Oxide Coatings ◽  
Large Core ◽  
Optical Channels ◽  
Plastic Optical Fibers ◽  
Side Coupling

The Rebirth of Large-Core Plastic Optical Fibers: Some Recent Results from the EU Project "POF-ALL"

2008 ◽  
Author(s):  
Daniel Cardenas ◽  
Antonino Nespola ◽  
Stefano Camatel ◽  
Silvio Abrate ◽  
Roberto Gaudino
Keyword(s):  
Optical Fibers ◽  
Large Core ◽  
Plastic Optical Fibers ◽  
Eu Project ◽  
The Eu

THICK PHOTORESIST ORIGINAL MASTER: A NEW TOOL FOR FABRICATION OF POLYMERIC OPTICAL WAVEGUIDES WITH LARGE CORE BY HOT EMBOSSING

2004 ◽  
Vol 13 (03n04) ◽  
pp. 513-517 ◽  
Author(s):  
HIROTAKA MIZUNO ◽  
OKIHIRO SUGIHARA ◽  
TOSHIKUNI KAINO ◽  
YUKA OHE ◽  
NAOMICHI OKAMOTO ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Optical Waveguides ◽  
Low Cost ◽  
Hot Embossing ◽  
Large Core ◽  
Plastic Optical Fibers ◽  
Thick Photoresist ◽  
Rectangular Groove ◽  
Flattening Process ◽  
Exposure Process

A simple and low-cost fabrication method of polymeric optical waveguides with large core sizes for plastic optical fibers is presented. The waveguides are fabricated by hot embossing with a rectangular ridge ultraviolet (UV)-cured epoxy resin stamper. The stamper is fabricated by replication of a rectangular groove mold that is made from silicone rubber replicated from a rectangular ridge original master made from thick photoresist (SU-8). A rectangular ridge shape of the original photoresist master of 1 mm size was realized by using a flattening process, which involves hot embossing before the exposure process and using a UV-cut filter during the exposure process.

scholarly journals Overcoming Challenges in Large-Core SI-POF-Based System-Level Modeling and Simulation

Photonics ◽  
2019 ◽  
Vol 6 (3) ◽  
pp. 88
Author(s):  
Dwight Richards ◽  
Alicia Lopez ◽  
M. Angeles Losada ◽  
Pablo V. Mena ◽  
Enrico Ghillino ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Optical Fibers ◽  
Light Propagation ◽  
Glass Fibers ◽  
Simulation Software ◽  
System Level ◽  
Large Core ◽  
Modulation Formats ◽  
System Level Simulation ◽  
Plastic Optical Fibers

The application areas for plastic optical fibers such as in-building or aircraft networks usually have tight power budgets and require multiple passive components. In addition, advanced modulation formats are being considered for transmission over plastic optical fibers (POFs) to increase spectral efficiency. In this scenario, there is a clear need for a flexible and dynamic system-level simulation framework for POFs that includes models of light propagation in POFs and the components that are needed to evaluate the entire system performance. Until recently, commercial simulation software either was designed specifically for single-mode glass fibers or modeled individual guided modes in multimode fibers with considerable detail, which is not adequate for large-core POFs where there are millions of propagation modes, strong mode coupling and high variability. These are some of the many challenges involved in the modeling and simulation of POF-based systems. Here, we describe how we are addressing these challenges with models based on an intensity-vs-angle representation of the multimode signal rather than one that attempts to model all the modes in the fiber. Furthermore, we present model approaches for the individual components that comprise the POF-based system and how the models have been incorporated into system-level simulations, including the commercial software packages SimulinkTM and ModeSYSTM.

Compact Y-Branch-Type Polymeric Optical Waveguide Devices with Large-Core Connectable to Plastic Optical Fibers

2005 ◽  
Vol 44 (12) ◽  
pp. 8504-8506 ◽  
Author(s):  
Hirotaka Mizuno ◽  
Okihiro Sugihara ◽  
Toshikuni Kaino ◽  
Naomichi Okamoto ◽  
Motoshi Ohama
Keyword(s):  
Optical Waveguide ◽  
Optical Fibers ◽  
Large Core ◽  
Waveguide Devices ◽  
Plastic Optical Fibers ◽  
Branch Type

TEMPERATURE SENSING BY SIDE COUPLING OF LIGHT THROUGH ZINC OXIDE NANORODS ON OPTICAL FIBERS

2017 ◽  
Vol 257 ◽  
pp. 15-19 ◽  
Author(s):  
Hazli Rafis Bin Abdul Rahim ◽  
Muhammad Quisar Bin Lokman ◽  
Sulaiman Wadi Harun ◽  
Joydeep Dutta ◽  
Waleed Soliman Mohammed
Keyword(s):  
Zinc Oxide ◽  
Optical Fibers ◽  
Temperature Sensing ◽  
Zinc Oxide Nanorods ◽  
Oxide Nanorods ◽  
Side Coupling

Signal Processing Enhanced Fiber Vibration Sensors

2013 ◽  
Vol 543 ◽  
pp. 302-305
Author(s):  
Daniele Tosi ◽  
Massimo Olivero ◽  
Alberto Vallan ◽  
Guido Perrone
Keyword(s):  
Signal Processing ◽  
Optical Fibers ◽  
Adaptive Filters ◽  
Spectral Estimation ◽  
Cost Effective ◽  
Fiber Sensors ◽  
High Frequencies ◽  
Vibration Sensors ◽  
Signal Processing Algorithms ◽  
Plastic Optical Fibers

The paper analyzes the feasibility of cost-effective fiber sensors for the measurement of small vibrations, from low to medium-high frequencies, in which the complexity of the measurement is moved from expensive optics to cheap electronics without losing too much performance thanks to signal processing algorithms. Two optical approaches are considered: Bragg gratings in standard telecom fibers, which represent the most common type of commercial fiber sensors, and specifically developed sensors made with plastic optical fibers. In both cases, to keep the overall cost low, vibrations are converted into variations of the light intensity, although this makes the received signal more sensitive to noise. Then, adaptive filters and advanced spectral estimation techniques are used to mitigate noise and improve the sensitivity. Preliminary results have demonstrated that the combined effect of these techniques can yield to a signal-to-noise improvement of about 30 dB, bringing the proposed approaches to the level of the most performing sensors for the measurement of vibrations.

scholarly journals A Nanoplasmonic-Based Biosensing Approach for Wide-Range and Highly Sensitive Detection of Chemicals

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1961
Author(s):  
Francesco Arcadio ◽  
Luigi Zeni ◽  
Aldo Minardo ◽  
Caterina Eramo ◽  
Stefania Di Di Ronza ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Limit Of Detection ◽  
Slab Waveguide ◽  
Grating Pattern ◽  
Transparent Substrate ◽  
Synthetic Receptor ◽  
Sensing Applications ◽  
Wide Range ◽  
Plastic Optical Fibers ◽  
Highly Sensitive Detection

In a specific biosensing application, a nanoplasmonic sensor chip has been tested by an experimental setup based on an aluminum holder and two plastic optical fibers used to illuminate and collect the transmitted light. The studied plasmonic probe is based on gold nanograting, realized on the top of a Poly(methyl methacrylate) (PMMA) chip. The PMMA substrate could be considered as a transparent substrate and, in such a way, it has been already used in previous work. Alternatively, here it is regarded as a slab waveguide. In particular, we have deposited upon the slab surface, covered with a nanograting, a synthetic receptor specific for bovine serum albumin (BSA), to test the proposed biosensing approach. Exploiting this different experimental configuration, we have determined how the orientation of the nanostripes forming the grating pattern, with respect to the direction of the input light (longitudinal or orthogonal), influences the biosensing performances. For example, the best limit of detection (LOD) in the BSA detection that has been obtained is equal to 23 pM. Specifically, the longitudinal configuration is characterized by two observable plasmonic phenomena, each sensitive to a different BSA concentration range, ranging from pM to µM. This aspect plays a key role in several biochemical sensing applications, where a wide working range is required.

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