Chen, S Y and Sun, T and Grattan, K T V and Annapurna, K and Sen, Ranjan (2009) Characteristics of Er and Er–Yb–Cr doped phosphate microsphere fibre lasers. Optics Communications, 282 (18). pp. 3765-3769. ISSN 0030-4018

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Abstract

In this paper both Er and Er–Yb–Cr doped phosphate microspheres have been successfully created through precise melting of the ends of fibre tapers, drawn, respectively, from Er and Er–Yb–Cr doped phosphate glasses. When coupled with a fibre taper, a microsphere fibre laser cavity can thus be configured creating a system pumped by a 980 nm laser diode and using an optical spectrum analyzer to monitor the spectral characteristics of the laser output. The performance and characteristics of the Er and Er– Yb–Cr microsphere lasers thus created are discussed in detail and cross-compared in this paper. Both lasers have shown low-threshold in terms of the pump power and the laser output wavelengths and a close investigation of the system has shown that the output power and laser stability are closely related to the size of the microsphere, the pump power and the microsphere material composition.

Item Type:	Article
Uncontrolled Keywords:	Whispering gallery mode;Microsphere laser; Er fibre laser; Er–Yb–Cr fibre laser
Subjects:	Processing Science
Divisions:	Glass
Depositing User:	Bidhan Chaudhuri
Date Deposited:	06 Mar 2012 13:00
Last Modified:	12 Feb 2013 08:37
URI:	http://cgcri.csircentral.net/id/eprint/1165

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