Ahmad, H and Thambiratnam, K and Paul, Mukul Chandra and Harun, S W (2014) Single-longitudinal-mode operation in tunable novel zirconia-yttria-alumina-erbium-doped fiber laser. Laser Physics, 24 (8). Article No.-085106. ISSN 1054-660X

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A tunable, single-longitudinal-mode (SLM) fiber laser based on a short length, highly doped zirconia-erbium doped fiber (Zr-EDF) is proposed and demonstrated. The Zr-EDF is a novel fiber with an erbium ion concentration of 4320 ppm wt(-1) and an absorption rate of approximately 22.0 dB m(-1) at 978 nm, while at the same time being highly compatible with conventional silica-based optical fibers. The Zr-EDF is used as the gain medium in the laser cavity, while a tunable C-band fiber Bragg grating is used to adjust the operating wavelength of the system, providing an operating wavelength range of between 1533.8 nm to 1545.0 nm. Two short erbium-doped fibers, with active ion concentrations of 900 ppm wt(-1), serve as saturable absorbers, and allow for an SLM output with a narrow laser linewidth of only 0.2 MHz. The proposed system has multiple applications as a tunable SLM laser for communications and sensing purposes.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 20 Nov 2014 12:17
Last Modified: 25 Nov 2014 09:36
URI: http://cgcri.csircentral.net/id/eprint/2564

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