Chalcogenide glass fibers

Other possible types of fibers are the chalcogenide glass fibers (e.g. Ge-As-Se) or heavy-metal fluoride fibers. Their transmission region is limited (2 to 10 pm. Fig. 6.5-5) and they are very fragile if the original cladding is removed. 

A schematic illustration of the experimental setup is shown in Fig. 6. A cylindrical workpiece is gripped by a chuck of lathe. Chalcogenide glass fiber-A is embedded in the workpiece and the incidence face of the fiber is inserted into a small hole which extends to the outer surface of the cylindrical workpiece. The incidence face of optical fiber-A which rotates with the... 

J. Nishii, I. Inagawa, T. Yamagishi, S. Morimoto and R. lizuka. Process for producing chalcogenide glass fiber, US Patent, 4,908,053, March 13,1990. 

Sanghera J. S., Shaw L. B., and Aggarwal I. D., Chalcogenide glass-fiber-based mid-lR sources and applications, IEEE J. Sel Top. Quantum Electron., 15,114-119 (2009). 

KatzM.,KatzirA.,SchnitzerI.,andBornsteinA.,Quantitative-evaluation of chalcogenide glass-fiber evanescent-wave spectroscopy, Appl. Opt, 33, 5888-5894 (1994). 

Dianov E. M., Plotnichenko V. G., Devyatykh G. G., Churbanov M. F., and Scripachev I. V., Middle-infrared chalcogenide glass-fibers with losses lower than 100 DB KM-1., Infrared Phys., 29, 303-307 (1989). 

Bureau B., Maurugeon S., Charpentier R, Adam J. L., Boussard-Pledel C., and Zhang X. H., Chalcogenide glass FIBERS for infrared sensing and space optics. Fiber Integrated. Opt, 28,65-80 (2009). 

Kanamori T., Terunuma Y, Takahashi S., and Miyashita T., Chalcogenide glass-fibers for mid-infrared transmission, /. Lightwave Technol, 2, 607-613 (1984). 

Nishii Morimoto S., Inagawa 1., lizuka R., Yamashita T., and Yamagishi T., Recent advances and trends in chalcogenide glass-fiber technology A review,/. Non-Cryst. Solids, 140,199-208 (1992). 

Keirsse J., Boussard-Pledel C., Loreal 0., Sire 0., Bureau B., Turlin B., Leroyer R, and Lucas J., Chalcogenide glass fibers used as biosensors,/. Non-Cryst. Solids, 326,430-433 (2003). 

Chalcogenide glass fibers may be used for temperature monitoring, thermal imaging, chemical sensing and laser power delivery. The main disadvantage of these fibers is the poisonous nature of some of their materials, which makes them hard to handle and problematic for medical applications. 

Selenium chalcogenide glasses exhibit good infrared transmission properties. These are used as lenses (ZnSe, CdSe) in laser apphcations and have potential applications in fiber optics (qv) and in data storage and retrieval. 

The main problem in developing fibers for IR transmission is that silica glass is not transparent in that area of the spectrum. Suitable materials include the selenides and other chalcogenide glasses (particularly for the CO2 laser light source) and the fluorohafnate glasses. In addition, materials, such as zirconium fluo-... 

Le Sergent C., Chalcogenide glass optical fibers, Proc.SPIE 799 (1987), pp.18-24. 

M. F. Churbanov and V. G. Plotnichenko, Optical Fibers from High-purity Arsenic Chalcogenide Glasses... 

Fig. 12. Comparison of strengths of FZ glass fibers with different jackets (1) chalcogenide glass jacket, and (2) Teflon-FEP jacket. (Nakata et al. 1985).

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