NDLI: Silica-clad neodymium-doped lanthanum phosphate fibers and fiber lasers

Content Provider	IEEE Xplore Digital Library
Author	Martin, R.A. Knight, J.C.
Copyright Year	1989
Abstract	We have fabricated a neodymium-doped phosphate glass fiber with a silica cladding and used it to form a fiber laser. Phosphate and silicate glasses have considerably different glass transition temperatures and softening points making it hard to draw a fiber from these two glasses. A bulk phosphate glass of composition (Nd₂O₃)_0.011(La₂O₃)_0.259(P₂O₅)_0.725(Al ₂O₃)_0.005 was prepared and the resultant material was transparent, free from bubbles and visibly homogeneous. The bulk phosphate glass was drawn to a fiber while being jacketed with silica and the resultant structure was of good optical quality, free from air bubbles and major defects. The attenuation at a wavelength of 1.06 mum was 0.05 dB/cm and the refractive index of the core and cladding at the pump wavelength of 488 nm was 1.56 and 1.46, respectively. The fibers were mechanically strong enough to allow for ease of handling and could be spliced to conventional silica fiber. The fibers were used to demonstrate lasing at the ⁴F_3/2-⁴I_11/2 (1.06 mum) transition. Our work demonstrates the potential to form silica clad optical fibers with phosphate cores doped with very high levels of rare-earth ions (27-mol % rare-earth oxide)
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	574
Ending Page	576
Page Count	3
File Size	326540
File Format	PDF
ISSN	10411135
Volume Number	18
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-02-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lanthanum Fiber lasers Optical fibers Glass Silicon compounds Laser transitions Optical attenuators Temperature Softening Neodymium soft glass Fiber laser neodymium phosphate glass
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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