Development Of Optical Fiber Technology Research Articles

Enhanced side illumination property of end emitting polymer optical fiber (EEPOF)/polyester (PET) woven fabrics by acetone/methanol mixture etching process

The rapid development of fiber optic technology has enriched smart wearable technology. Standard (end emitting) polymer optical fibers (EEPOF) are linear and flexible, which is feasible to integrated them into textiles and applied to curved parts of the human body for achieving individualized functionality (e.g., safety light-emitting garments, wearable photo-therapeutic textiles, fashionable displays, smart sensing apparel for monitoring etc.). However, the luminance of the EEPOF-incorporated fabric should be improved. In this work, the EEPOF/polyester (PET) woven fabrics (POF-PET-Fs) were firstly prepared and then etched by using acetone/methanol mixtures with different acetone concentrations. The morphology, breathability, and side illumination behavior of the etched POF-PET-Fs were investigated. As a result, higher acetone concentration in acetone/methanol mixture causes more destroy of EEPOF cladding layer and even a slight damage for core material. With higher acetone concentration is used, the dissolving cladding material blocks the pores of the warp and weft interweave of the woven fabric, thus affecting its air permeability. Besides, the bell-shaped side illumination behavior of etched POF-PET-Fs is found. The maximum luminance value of POF-PET-Fs reaches 74.8 cd/m2 when 80% acetone concentration in the acetone/methanol mixture is used. This work provides a feasible method for the preparation of POF fabrics for luminous purpose, which is beneficial to the textile industry and POF-related fields.

Distributed Optical Fiber Sensing Assisted by Optical Communication Techniques

The development of optical fiber technology has facilitated the technological innovation in optical fiber communication and sensing systems over the past decades. Among all the fiber sensing technologies, distributed optical fiber sensing (DOFS) has attracted great research interests and has been extensively investigated. In optical fiber communication systems, optical parameters such as intensity, phase, polarization, or frequency are modulated to realize data transmission, while for DOFS they are employed to measure the distributed physical parameter variation along the sensing fiber. Due to the similarities shared by optical fiber communication systems and DOFS systems, optical communication techniques, including coherent detection, polarization diversity and multicarrier signaling have been widely used in the DOFS to improve the sensing performance. In this article, principles of coherent detection, polarization diversity and multicarrier signaling are introduced and their applications in phase sensitive optical time domain reflectometry and Brillouin optical time domain analyzer are reviewed. A newly proposed unidirectional forward transmission based DOFS is also presented.

Replacement of glass-former B2O3 by GeO2 in amorphous host evidenced by optical methods

Two completely different glass-host matrices containing lead, i.e. borate and germanate glasses doped with erbium were studied. Replacement of glass-former B2O3 by GeO2 in amorphous host was evidenced by optical methods. The luminescence decay from the 4I13/2 upper laser state of Er3+ ions is relatively short, whereas up-converted emission signal is reduced definitely in borate glass containing lead due to its high B-O stretching vibrations. The results indicate that germanate glasses containing lead are promising for near-infrared luminescence and up-conversion applications. Full Text: PDF ReferencesR. Balda, A. Oleaga, J. Fernandez, J.M. Fdez-Navarro, "Spectroscopy and frequency upconversion of Er3+ ions in lead niobium germanate glasses", Opt. Mater. 24, 83 (2003). CrossRef H. Yamauchi, Y. Ohishi, "Spectroscopic properties of Er3+-doped PbO?Ga2O3?GeO2 glass for optical amplifiers", Opt. Mater. 27, 679 (2005). CrossRef W.A. Pisarski, Ł. Grobelny, J. Pisarska, R. Lisiecki, W. Ryba-Romanowski, "Spectroscopic properties of Yb3+ and Er3+ ions in heavy metal glasses", J. Alloys Compd. 509, 8088 (2011). CrossRef M.B. Saisudha, J. Ramakrishna, "Effect of host glass on the optical absorption properties of Nd3+, Sm3+, and Dy3+ in lead borate glasses", Phys. Rev. B 53, 6186 (1996). CrossRef C.K. Jayasankar, V. Venkatramu, S. Surendra Babu, P. Babu, "Luminescence properties of Dy3+ ions in a variety of borate and fluoroborate glasses containing lithium, zinc, and lead", J. Alloys Compd. 374, 22 (2004). CrossRef W.A. Pisarski et al. "Luminescence spectroscopy of rare earth-doped oxychloride lead borate glasses", J. Lumin. 131, 649 (2011). CrossRef M. Kochanowicz, W. Mazerski, J. Żmojda, K. Czajkowski, D. Dorosz, "Green upconversion emission in tellurite optical fibre codoped with Yb3+/Er3+", Phot. Lett. Poland 5, 35 (2013). CrossRef J. Dorosz, "Novel constructions of optical fibers doped with rare ? earth ions", Ceramics 86 (2005). CrossRef J. Żmojda, D. Dorosz, M. Kochanowicz, J. Dorosz, "Spectroscopic properties of Yb3+/Er3+ - doped antimony-phosphate glasses for fiber amplifiers", Phot. Lett. Poland 2, 76 (2010). CrossRef J. Dorosz, R. S. Romaniuk, "Development of Optical Fiber Technology in Poland", INTL J. Electron. Telecom. 57, 191 (2011). CrossRef Q.Y. Zhang et al. "Effects of PbF2 doping on structure and spectroscopic properties of Ga2O3?GeO2?Bi2O3?PbO glasses doped with rare earths", J. Appl. Phys. 99, 033510 (2006) CrossRef W.A. Pisarski, G. Dominiak-Dzik, W. Ryba-Romanowski, J. Pisarska, "Role of PbO substitution by PbF2 on structural behavior and luminescence of rare earth-doped lead borate glass", J. Alloys Compd. 451, 220 (2008). CrossRef M. Sołtys, J. Pisarska, L. Żur, T. Goryczka, W.A. Pisarski, "Influence of M2O3 (M = Al, Ga) glass modifiers on structure, thermal and spectroscopic properties of rare earth ions in lead phosphate based systems", Proc. SPIE 9228, 92280A (2014). CrossRef J. Janek, J. Pisarska, W.A. Pisarski, "Rare earth doped lead-free germanate glasses for modern photonics", Phot. Lett. Poland 6, 71 (2014). CrossRef W.A. Pisarski et al. "Infrared-to-visible conversion luminescence of Er3+ ions in lead borate transparent glass-ceramics", Opt. Mater. 31, 1781 (2009). CrossRef J. Pisarska, L. Żur, W.A. Pisarski, "Optical spectroscopy of Dy3+ ions in heavy metal lead-based glasses and glass?ceramics", J. Mol. Struct. 993, 160 (2011). CrossRef L. Żur, M. Sołtys, J. Pisarska, W.A. Pisarski, "Absorption and luminescence properties of terbium ions in heavy metal glasses", J. Alloys Compd. 578, 512 (2013). CrossRef W.A. Pisarski, L. Żur, M. Kowal, J. Pisarska, "Enhancement and quenching photoluminescence effects for rare earth ? Doped lead bismuth gallate glasses", J. Alloys Compd. 651, 565 (2015). CrossRef M. Shojiya, Y. Kawamoto, K. Kadono, "Judd?Ofelt parameters and multiphonon relaxation of Ho3+ ions in ZnCl2-based glass", J. Appl. Phys. 89, 4944 (2001). CrossRef

Perancangan Siste Data Udara Menggunakan Media Tranmsisi Serat Optis

The use of optical fiber transmission media at the Air Data System is affected by the development of optical fiber technology. The system is able to present the data required by the flight crews quickly and accurately. Therefore, it supports the success of a certain mission. In addition, the air data system using the transmission medium optical fiber also has advantages other than the copper cables, i.e: immune to EMI (Electro Magnetic Interference), RFI (Radio Frequency Interference), EMP (Electro Magnetic Pulses), and will not experience any disruption caused by the occurrence of a short circuit.The fiber optic air data system is designed in consideration with the characteristics of it’s components i.e: the transmitter, optical fiber cable and the data receiver. The study also completely discusses the air data system, from the sensor, Air Data Computer (ADC), and the display of aircraft altitude and speed. .Kata kunci: Serat optis, sistem data udara, air data computer.

Rare earth doped lead-free germanate glasses for modern photonics

Lead-free germanate glasses doped with rare earth ions were synthesized and next studied using excitation and luminescence spectroscopy. Rare earths were limited to Pr 3+ , Eu 3+ and Er 3+ ions. Several luminescence bands correspond to transitions originating from the 3 P 0 and 1 D 2 states of Pr 3+ , the 5 D 0 state of Eu 3+ , the 4 S 3/2 , 4 F 9/2 and 4 I 13/2 states of Er3+ , respectively. The relatively long lifetime for the upper 4 I 13/2 laser state of Er 3+ suggest that lead-free germanate glasses are promising materials for near-infrared optical amplifiers. Full Text: PDF References M. Yamane and Y. Asahara, Glasses for photonics (Cambridge University Press 2000). CrossRef A. Jha et al, "Rare-earth ion doped TeO2 and GeO2 glasses as laser materials", Prog. Mater. Sci. 57, 1426 (2012). CrossRef J.S. Wang, E.M. Vogel, E. Snitzer, "Tellurite glass: a new candidate for fiber devices", Opt. Mater. 3, 187 (1994). CrossRef J. Dorosz, "Optical Fibers Technology", Ceramics 86 (2005). J. Dorosz, R.S. Romaniuk, "Development of Optical Fiber Technology in Poland", INTL J. Electron. Telecom. 57, 191 (2011). CrossRef M. Kochanowicz, W. Mazerski, J. Żmojda, K. Czajkowski, D. Dorosz, "Green upconversion emission in tellurite optical fibre codoped with Yb3+/Er3+", Phot. Lett. Poland 5, 35 (2013). CrossRef J. Żmojda, D. Dorosz, M. Kochanowicz, J. Dorosz, "Spectroscopic properties of Yb3+/Er3+ - doped antimony-phosphate glasses for fiber amplifiers", Phot. Lett. Poland 2, 76 (2010). CrossRef H. Lin, E.Y.B. Pun, B.J. Chen, Y.Y. Zhang, "Rare-earth ion doped lead- and cadmium-free bismuthate glasses", J. Appl. Phys. 103, 056103 (2008). CrossRef S.S. Bayya, G.D. Chin, J.S. Sanghera, I.D. Aggarwal, "Germanate glass as a window for high energy laser systems", Opt. Express 14, 11687 (2006). CrossRef J.M. Jewell, P.L. Higby, I.D. Aggarwal, "Properties of BaO–R2O3– Ga2O3–GeO2 (R = Y, Al, La, and Gd) Glasses", J. Am. Ceram. Soc. 77, 697 (1994). CrossRef R.R. Xu, Y. Tian, M. Wang, L.L. Hu, J.J. Zhang, "Spectroscopic properties of 1.8 μm emission of thulium ions in germanate glass", Appl. Phys. B 102, 109 (2011). CrossRef R. Xu, Y. Tian, L. Hu, J. Zhang, "Broadband 2 μm emission and energy-transfer properties of thulium-doped oxyfluoride germanate glass fiber", Appl. Phys. B 104, 839 (2011). CrossRef V.K. Tikhomirov, S.A. Tikhomirova, "Hypersensitive transition 3P0 → 3F2 of Pr3+ related to the polarizability and structure of glass host", J. Non-Cryst. Solids 274, 50 (2000). CrossRef R. Balda, A. Oleaga, J. Fernandez, J.M. Fdez-Navarro, "Spectroscopy and frequency upconversion of Er3+ ions in lead niobium germanate glasses", Opt. Mater. 24, 83 (2003). CrossRef H. Yamauchi, Y. Ohishi, "Spectroscopic properties of Er3+-doped PbO–Ga2O3–GeO2 glass for optical amplifiers", Opt. Mater. 27, 679 (2005). CrossRef W.A. Pisarski, Ł. Grobelny, J. Pisarska, R. Lisiecki, and W. Ryba-Romanowski, "Spectroscopic properties of Yb3+ and Er3+ ions in heavy metal glasses", J. Alloys Compd. 509, 8088 (2011). CrossRef

Optical Fibers and Their Applications 2014

Conference Series on Optical Fibers and Their Applications held its 15th edition in Białystok and Lipowy Most in the end of January 2014. The paper is a concise digest of work results presented there from the main domestic laboratories active in optical fiber and planar photonics. Conference topics were: optical fiber technology, materials for optoelectronics and photonics, rare earth doped and luminescent materials, metrology of optical fibers, components and optoelectronic circuits, applications of optical fibers, waveguides and optical fiber sensors, and lighting technology. Full version of the OFTA2014 digest paper was published in [1]. Proceedings of previous OFTA conferences were published in [2, 3].Full Text: PDF References R.S.Romaniuk, J.Dorosz, (Edit.)"Development of optical fiber technology in Poland: 2014", Optical Fibers and Their Applications 2014, Proc.SPIE 9228, May 2014 CrossRef J.Dorosz, R.S.Romaniuk (Edit.),"Front Matter: Volume 8010", Optical Fibers and Their Applications 2011, Proc.SPIE 8010, CrossRef R.S.Romaniuk, W.Wójcik (Edit.), "Front Matter: Volume OA100", Optical Fibers and Their Applications 2012, Proc.SPIE 8698, CrossRef Central Office of Measures DirectLink Space Research Centre, Polish Academy of Sciences DirectLink

Development of Optical Fiber Technology in Poland

Development of Optical Fiber Technology in PolandIn this paper, the authors, chairmen of the 13th Conference on Optical Fibers and Their Applications OFA2011, and editors of the conference proceedings summarize the development of optical fiber technology in Poland (during the period of 2009-2011) on the basis of papers presented there and consecutively published in this volume. The digest is thus not full but covers the periodically presented material every 18 months during the meetings on optical fibers in Białystok-Białowieża and Lublin-Krasnobród.

Development of optical fiber technology in Poland

Development of optical fiber technology in PolandOptical fiber technology is an important branch of science and technology, but also economy. Together with related disciplines it creates wider areas like optoelectronics and photonics. Optical fiber technology is developed in this country rather dynamically, proportionally to the available funds designed locally for research and applications. Recently this development was enhanced with considerable funds from European Operational Funds Innovative Economy POIG and Human Capital POKL. The paper summarizes the development of optical fiber technology in Poland from academic perspective during the period of last 2-3 years. Probably the digest is not very not full. An emphasis is put on development of optical fiber manufacturing methods. This development was illustrated by a few examples of optical fiber applications.

Management of canalicular obstructions

The successful treatment of canalicular obstructions continues to represent a therapeutic challenge. Conjuctivodacryocystorhinostomy with a Lester Jones bypass tube is the standard treatment in these situations. Although a high rate of anatomic success can be achieved with this procedure, a relatively high rate of complications and poor patient satisfaction have been reported. Because of this, alternative techniques have emerged. Herein, we review all these techniques described in the literature. Increasing interest in minimally invasive surgery and developments in fiberoptic technology have fueled advances in endocanalicular surgery. Canalicular trephination for obstructions at any level of the canalicular system and laser and balloon canaliculoplasty for focal canalicular and common canalicular stenoses may offer a well tolerated, fast and easy alternative, with potentially better patient satisfaction when compared with conjuctivodacryocystorhinostomy. The alternative techniques to conjuctivodacryocystorhinostomy are less invasive, and respect and utilize any healthy and functional part of the canalicular system. The correct choice of the technique for a given canalicular obstruction, and therefore the long-term success, depends on the site and degree of the obstruction.

Transcanalicular Approach to Adult Lacrimal Duct Obstruction: A Review of Instruments and Methods

Developments in fiberoptic technology and increasing interest in minimally invasive surgery have fueled advances in transcanalicular surgery. This article presents a review of instruments and methods for diagnostic and therapeutic approaches to adult lacrimal drainage obstruction. Available endocanalicular probes, microendoscopes, lasers, microdrills, trephines, and antegrade lacrimal balloon catheters are discussed and compared. Developments in microendoscopy, laser transcanalicular dacryocystorhinostomy, laser canaliculoplasty, transcanalicular drilling and trephination, and transcanalicular balloon dacryoplasty are also discussed in detail. Transcanalicular surgery provides a minimally invasive approach to adult lacrimal drainage obstruction that may also address the pathology causing the obstruction. Long-term success rates of transcanalicular dacryocystorhinostomy appear to be improving, but cost and a paucity of data on long-term results continue to limit the use of transcanalicular surgery.

Luminescent-dye-doped-plastics characterization for light intensity sensing

Luminescent-dye-doped-plastics are nowadays extensively used for esthetic purposes (toys, ballpoint pens, etc.). In the early 1980's, these materials were investigated to be used as sunlight concentrators in energy generation. Recent developments in fiber optic technology, beyond mere data transmission, lead us to consider the feasibility of using such materials for light intensity sensing in fiber optic sensors networks. The sensor described in this work has proved to show high linearity, reproducibility and stability, and low directivity, however it lacks high sensitivity. Further optimization of some design parameters will definitely help to improve it.

Benign Colorectal Polyps: Endoscopic Surveillance Guidelines and Effects on Colorectal Cancer Risk

In the past several years, there have been major advances in the understanding of colorectal cancer from both the clinical and basic science level. Although there are various techniques for colorectal cancer screening and surveillance, the most cost-effective approach has yet to be determined. As molecular biology techniques are improved and incorporated into clinical practice, identification of high-risk populations seems possible. With future advances in endoscopy and imaging, patient compliance can be improved. With the proper combination of both clinical and basic science techniques, it seems reasonable that a further reduction in the mortality from colorectal cancer can be accomplished.

Development of optical fiber technology in Japan

The developments of optical fiber technology in Japan are reviewed. Multicomponent glass optical fibers, pure silica-core single-mode fibers, dispersion-shifted fibers, rare-earth-doped optical fibers, polarization maintaining fibers, and hermetically coated fibers are discussed. The modified chemical vapor deposition and vapor phase axial deposition methods are described. Required properties of coating material and the cable structure and coating layer structure of fibers are detailed. High-speed coating technology and processability, the structural design of coating, and the mechanical properties of resin are discussed. The adhesive strength with glass and the environmental stability are discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

A bright future for fiber optic communications: New developments in fiber optic technology are transforming lightwave communications into one of the fastest growing areas of electronics

Provides a brief history and overview of fiber-optic communication. Advantages and disadvantages are discussed.

Technology Requirements for Optical Fiber Submarine Systems

The development of optical fiber technology has advanced to the point where optical submarine systems can be contemplated. However, considerable attention must be paid to developing and then proving the acceptability of the several technologies new to submarine systems. Areas of particular significance include fiber reliability and cabling, performance and reliability of electrooptic components, and the establishment of reliable and cost-effective electronic circuitry. The development of first-generation systems is well under way and the possibility of more advanced systems exists, as new techniques become established.

Cancer of the gastrointestinal tract. Diagnostic fiberoptic gastroscopy.

RECENT developments in fiberoptic technology have revolutionized the field of gastrointestinal endoscopy. The endoscopist now can examine in great detail the entire length of the esophagus, stomach, duodenum, colon, and parts of the small intestine. Gastric lesions can be visualized and photographed.⁵⁸Biopsy and cytologic specimens can be obtained under direct vision.^59-62 The diameter of the gastroscope is only 10 to 11 mm. Sophisticated manipulative systems permit the examiner to direct the distal tip of the gastroscope to specific areas of interest and perform a thorough investigation. External illumination from powerful sources of light and an integral bundle to carry the light into the stomach provide adequate illumination for still photography, cinegastroscopy, and television.⁶³Magnetic tape recording for instantaneous replay and simultaneous examination by two observers via a teaching attachment serve to train new endoscopists. Review of these tapes and other photographic documents is useful for self-teaching.