Title

Deep Uv-Induced Near-Infrared Photodarkening Of Er/Yb-Doped And Undoped Phosphate Fibers

Abstract

Photodarkening (PD) of Er/Yb-doped and undoped phosphate fibers caused by pulsed 193 nm irradiation from an ArF excimer laser to form Bragg grating mirrors is investigated. Doped and undoped phosphate fibers exhibit the same level of significant UV-induced PD loss, which is associated with the formation of a color center band at 467 nm. The UV-induced absorption extends into the NIR and creates a loss on the order of 1 dB/cm across the C-band. Photo-bleaching by a high-power supercontinuum source, and thermal-bleaching processes are performed on photodarkened samples. Both bleaching processes are found effective to fully erase the UV-induced PD loss. © 2013 Optical Society of America.

Publication Date

10-15-2013

Publication Title

Optics Letters

Volume

38

Issue

20

Number of Pages

4193-4196

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OL.38.004193

Socpus ID

84885997133 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84885997133

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