Browsing by Subject "Photonic crystal fiber"

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    ItemOpen Access
    Advances in fiber sensing devices decorated with functionalized nanomaterials
    (2023-05-08) Yıldırım, Elif Yapar; Karatutlu, Ali
    Hybrid sensor devices formed via decoration of nanomaterials on the surface of optical fibers are designed and fabricated for sensing specific physical, chemical, or biological objects. In this chapter, advances in optical fiber sensing devices functionalized with nanomaterials are outlined with respect to optical fiber types including the optical fiber sensing device preparation processes, detection object, sensitivity, and their sensing mechanism. The single- and multimode fibers, active fibers, fiber Bragg gratings, and photonic crystal fibers are the mostly utilized forms of optical fiber sensing devices. The emerging functionalized nanomaterials reviewed here are limited to quantum dots, plasmonic nanoparticles (NPs), 2D nanomaterials, and rare earth–doped NPs.
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    ItemOpen Access
    Compact ultrafast oscillators and high performance ultrafast amplifiers based on ytterbium-doped fibers
    (Springer Verlag, 2016) Limpert, J.; Eidam, T.; Baumgartl, M.; Röser, F.; Plötner, M.; Ortaç, B.; Nolte, S.; Tünnermann, A.
    This chapter reviews the fundamentals and achievements of ultrashort pulse generation and amplification in ytterbium-doped fibers. Compact and ultrastable passively mode-locked fiber oscillators represent an ideal seed source for high performance femtosecond fiber amplification systems, which have been scaled towards kW-level average power and pulse energies well above the mJ-level. These laser systems will have significant impact in numerous scientific and industrial applications.