scholarly journals A new class of specialty optical fibers based on a novel material composition of the doping host for the study of optical amplification

2021 ◽  
Author(s):  
Mukul Chandra Paul ◽  
Alexander V Kir’yanov ◽  
Yuri Barmenkov ◽  
José Duarte ◽  
Joaquim P Leitão ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Material Composition ◽  
Optical Amplification ◽  
New Class ◽  
Novel Material

Splicing of Polarization Maintained (PANDA) Optical Fibers in an Electronics Manufacturing Environment

2009 ◽  
Author(s):  
Rohan Kulkarni ◽  
Krishnaswami Srihari
Keyword(s):  
Fiber Optics ◽  
Optical Fibers ◽  
Product Launch ◽  
Electronics Manufacturing ◽  
Low Loss ◽  
Manufacturing Environment ◽  
Novel Material ◽  
Polarization Maintaining ◽  
Market Driven ◽  
Original Equipment Manufacturers

Optoelectronics technology has been undergoing continuous improvement in order to accommodate customer demand for smaller, faster and cheaper products [1]. The demand is satisfied by using novel material fibers, design techniques and processes. This results in challenges for the handling and usage of fibers during the assembly process. The focus of this research endeavor is restricted to the splicing processes of Polarization Maintaining (PM) fibers during optoelectronic assembly. Until recently, the technology of transmitting higher rate of data was limited to laboratories. However, the manufacturing technology was not standard. It took a longer period of time for the commercialization of these products. Due to the market driven demand and shorter product launch times, Original Equipment Manufacturers (OEMs) decided to outsource the manufacturing of fiber optics products to the Electronics Manufacturing Service (EMS) providers. This paper focuses on the splicing of Panda fibers in an EMS provider’s manufacturing environment. The objective of the study was to develop the splicing process for Panda fibers and outline the splicing parameters that have a significant impact on obtaining low loss splices. A ‘design of experiments’ approach has been used to perform the splices along with a real time splice loss measurement using a power meter and source. Prefuse power, prefuse time, arc power and arc time were the factors selected for experimentation. Experiments have been conducted using the aforementioned parameters and the ‘best’ combination was used to perform a verification run. An effort has been made to obtain (near) optimal values for the significant parameters that can be used for production in an EMS provider’s environment.

Optical vortices in fiber

Nanophotonics ◽  
2013 ◽  
Vol 2 (5-6) ◽  
pp. 455-474 ◽  
Author(s):  
Siddharth Ramachandran ◽  
Poul Kristensen
Keyword(s):  
Angular Momentum ◽  
Optical Fibers ◽  
Orbital Angular Momentum ◽  
Optical Vortex ◽  
Optical Vortices ◽  
New Class ◽  
Phase Singularities ◽  
Vortex Beams ◽  
Exotic Beams

AbstractOptical vortex beams, possessing spatial polarization or phase singularities, have intriguing properties such as the ability to yield super-resolved spots under focussing, and the ability to carry orbital angular momentum that can impart torque to objects. In this review, we discuss the means by which optical fibers, hitherto considered unsuitable for stably supporting optical vortices, may be used to generate and propagate such exotic beams. We discuss the multitude of applications in which a new class of fibers that stably supports vortices may be used, and review recent experiments and demonstration conducted with such fibers.

scholarly journals Microfluorescence Analysis of Nanostructuring Inhomogeneity in Optical Fibers with Embedded Gallium Oxide Nanocrystals

2012 ◽  
Vol 18 (2) ◽  
pp. 259-265 ◽  
Author(s):  
Valery M. Mashinsky ◽  
Nikita M. Karatun ◽  
Vladimir A. Bogatyrev ◽  
Vladimir N. Sigaev ◽  
Nikita V. Golubev ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Gallium Oxide ◽  
Light Emission ◽  
Fiber Amplifier ◽  
Transition Metal Ions ◽  
Oxide Glasses ◽  
Optical Amplification ◽  
Nanocrystal Growth ◽  
Induced Defects ◽  
Crystallization Degree

AbstractA spectroscopic protocol is proposed to implement confocal microfluorescence imaging to the analysis of microinhomogeneity in the nanocrystallization of the core of fibers belonging to a new kind of broadband fiber amplifier based on glass with embedded nanocrystals. Nanocrystallization, crucial for achieving an adequate light emission efficiency of transition metal ions in these materials, has to be as homogeneous as possible in the fiber to assure optical amplification. This requirement calls for a sensitive method for monitoring nanostructuring in oxide glasses. Here we show that mapping microfluorescence excited at 633 nm by a He-Ne laser may give a useful tool in this regard, thanks to quasi-resonant excitation of coordination defects typical of germanosilicate materials, such as nonbridging oxygens and charged Ge-O-Ge sites, whose fluorescence are shown to undergo spectral modifications when nanocrystals form into the glass. The method has been positively checked on prototypes of optical fibers—preventively characterized by means of scanning electron microscopy and energy dispersive spectroscopy—fabricated from preforms of Ni-doped Li2O-Na2O-Sb2O3-Ga2O3-GeO2-SiO2 glass in silica cladding and subjected to heat treatment to activate gallium oxide nanocrystal growth. The method indeed enables not only the mapping of the crystallization degree but also the identification of drawing-induced defects in the fiber cladding.

scholarly journals Fabrication and optical properties of lead‐germanate glasses and a new class of optical fibers doped with Tm3+

1993 ◽  
Vol 73 (12) ◽  
pp. 8066-8075 ◽  
Author(s):  
J. Wang ◽  
J. R. Lincoln ◽  
W. S. Brocklesby ◽  
R. S. Deol ◽  
C. J. Mackechnie ◽  
...  
Keyword(s):  
Optical Properties ◽  
Optical Fibers ◽  
Lead Germanate ◽  
New Class ◽  
Germanate Glasses

A New Class of Glasses for Double-Crucible Optical Fibers with High Numerical Apertures

1984 ◽  
Vol 67 (10) ◽  
pp. 657-663
Author(s):  
G. A.C. M. SPIERINGS ◽  
C.M.G. JOCHEM ◽  
T.P.M. MEEUWSEN ◽  
G.E. THOMAS
Keyword(s):  
Optical Fibers ◽  
New Class ◽  
Double Crucible

Microstructured Optical Fibers as New Nanotemplates for High Pressure CVD

2006 ◽  
Vol 988 ◽  
Author(s):  
Neil Baril ◽  
John Badding ◽  
Pier Savio ◽  
Venkatraman Gopalan ◽  
Dong-Jin Won ◽  
...  
Keyword(s):  
High Pressure ◽  
Optical Fibers ◽  
Vapor Deposition ◽  
Large Range ◽  
Chemical Vapor ◽  
Semiconductor Nanowires ◽  
New Class ◽  
Microstructured Optical Fibers ◽  
Conventional Chemical Vapor Deposition ◽  
20 Nm

AbstractSolid state chemists have long been interested in templated growth of materials using many approaches. The resulting materials have been useful in areas as diverse as photonics and catalysis. Microstructured optical fibers (MOFs) form a new class of nanotemplates that can have sub 20 nm pores that are meters to kilometers long. We have developed a high-pressure microfluidic chemical process that allows for conformal deposition of materials within MOFs to form the most extreme aspect ratio semiconductor nanowires known. The wires can be spatially organized with respect to each other at dimensions down to the nanoscale because the MOF templates can be designed with almost any desired periodic or aperiodic pattern. Many if not most of the chemistries used for conventional chemical vapor deposition (CVD) can be adapted for this process. The resulting materials should enable a large range of scientific and technological applications.

scholarly journals Reflective Properties of a Polymer Micro-Transducer for an Optical Fiber Refractive Index Sensor

Sensors ◽  
2020 ◽  
Vol 20 (23) ◽  
pp. 6964
Author(s):  
Paweł Marć ◽  
Monika Żuchowska ◽  
Leszek R. Jaroszewicz
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Optical Fibers ◽  
Fiber Type ◽  
Optical Fiber Sensor ◽  
Refractive Index Sensor ◽  
Light Sources ◽  
New Class ◽  
Multi Mode ◽  
Selection Of

A polymer microtip manufactured at the end of a multi-mode optical fiber by using the photopolymerization process offers good reflective properties, therefore, it is applicable as an optical fiber sensor micro-transducer. The reflective properties of this microelement depend on the monomer mixture used, optical fiber type, and light source initiating polymerization. Experimental results have shown that a proper selection of these parameters has allowed the design of a new class of sensing structure which is sensitive to the refractive index (RI) changes of a liquid medium surrounding the microtip. An optical backscatter reflectometer was applied to test a group of micro-transducers. They were manufactured from two monomer mixtures on three different types of multi-mode optical fibers. They were polymerized by means of three optical light sources. Selected micro-transducers with optimal geometries were immersed in reference liquids with a known RI within the range of 1.3–1.7. For a few sensors, the linear dependences of return loss and RI have been found. The highest sensitivity was of around 208 dB/RIU with dynamic 32 dB within the range of 1.35–1.48. Sensing characteristics have minima close to RI of a polymer microelement, therefore, changing its RI can give the possibility to tune sensing properties of this type of sensor.

Photonic Materials: Introduction

MRS Bulletin ◽  
1988 ◽  
Vol 13 (8) ◽  
pp. 14-15 ◽  
Author(s):  
Alastair M. Glass
Keyword(s):  
Semiconductor Lasers ◽  
Optical Fibers ◽  
High Performance ◽  
Information Technologies ◽  
Photonic Materials ◽  
Wide Bandwidth ◽  
Photonic Switching ◽  
Optical Amplification ◽  
Fundamental Limitations

Optical technologies have advanced dramatically in recent years. In just two decades the transparency of optical fibers has improved by four orders of magnitude. Semiconductor lasers have evolved from a new invention to highly reliable, high performance commercial devices for wide bandwidth optical communications. New approaches to higher frequency modulation, wider bandwidth transmission, more sensitive detection and optical amplification are constantly being developed. Fundamental limitations are sufficiently far removed from current capabilities that considerable further progress can be anticipated. These advances have provided the stimulus for a much broader investigation of the potential of optics in future information technologies in which optics and electronics play complementary roles. This rapidly developing field is referred to as “photonics.” Increasing attention is now being paid to applying optics to wide bandwidth switching systems and to exploring the potential of optics for image processing and computation.Past progress in optical communication can be traced largely to the dramatic progress in optical fiber and compound semiconductor materials technologies. Likewise, future opportunities in photonic switching and information processing will depend critically on the development of improved photonic materials. The future role of optics in these conventionally electronic technologies, and the extent of that role, depends on whether materials can be designed and fabricated with the required characteristics.

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