✦ LIBER ✦

Continuously tunable S and C+L bands ultra wideband erbium-doped fiber ring laser

✍ Scribed by Q. Wang; Q.X. Yu

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 108 KB
Volume: 6
Category: Article
ISSN: 1612-2011
DOI: 10.1002/lapl.200910042

No coin nor oath required. For personal study only.

✦ Synopsis

This paper presents an ultra wideband tunable silicabased erbium doped fiber ring laser (EDFRL) that can be continuously tuned in S and C+L bands from 1475 to 1619 nm. It is the first time that a fiber ring laser's tuning range reaches 144 nm using a standard silica-based C-band erbium-doped fiber as gain media. In the laser configuration two isolators are used in the fiber loop for suppressing the ASE in C-band and elevating the lasing gain in S-band. As a result the available lasing wavelength is extended toward the shorter wavelength of the gain bandwidth. The optimized erbium-doped fiber length, output coupling ratio and pumping laser power have been obtained through experimental study. This ring fiber laser has simple configuration, low threshold, flat laser spectral distribution and high signal-to-ASE-noise ratio. The laser will have many potential applications in fiber sensor wavelength interrogation, high-resolution spectroscopy and fiber optic communications.

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