Saha, Maitreyee and Das Chowdhury, Sourav and Shekhar, Nishant Kumar and Pal, Atasi and Pal, Mrinmay and Guha, Chandan and Sen, Ranjan (2016) Yb-Doped Pedestal Silica Fiber Through Vapor Phase Doping for Pulsed Laser Applications. IEEE Photonics Technology Letters, 28 (9). pp. 1022-1025. ISSN 1041-1135

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This letter describes successful fabrication and detail characterization of ytterbium (Yb)-doped pedestal aluminosilicate fibers through vapor phase doping technique using modified chemical vapor deposition system (MCVD). Fabricated preforms have uniform step-index profiles devoid of any profile ripples, central dip, and/or core-clad interface defects, which are very common to the preforms made by a solution doping method. Fibers with a pedestal design exhibit good optical properties, low photodarkening-induced losses, high SNR values, and higher efficiencies making them suitable for high-power pulsed laser applications as compared with normal Yb-doped fibers. One of the pedestal fibers has demonstrated the output energy of 186 mu J with the 1.86-W average power. The pulse has a width of 100 ns at a 10-kHz repetition rate, which provides a peak power of 1.86 kW.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 09 Nov 2016 07:34
Last Modified: 09 Nov 2016 07:34

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