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A diode-laser-pumped, Er3+-doped fibre laser operating at 1.57µm

Barnes, W.L., Taylor, D.J., Fermann, M.E., Townsend, J.E., Reekie, L. and Payne, D.N. (1989) A diode-laser-pumped, Er3+-doped fibre laser operating at 1.57µm At Optical Fiber Communication (OFC '89), United States.

Record type: Conference or Workshop Item (Paper)


Erbium-doped fibers show promise as stable narrow-linewidth laser sources and optical amplifiers operating in the third telecommunications window around 1.55µm Diode laser pumping is possible using the weak pump-band located at 807nm, although this band suffers severely from excited-state absorption (ESA), which reduces gain and pump efficiency. At the low pump power available from diode lasers the Er3+ behaves as a quasi four-level system. However, by codoping the core glass heavily with Yb3+, it is possible to excite the Er3+ ions indirectly using energy transfer. The Yb3+ provides an intense broad pump-band centered at 900nm, which reduces the effect of ESA. As a consequence of the resulting higher pump efficiency, the laser will oscillate at the required shorter wavelengths.

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e-pub ahead of print date: February 1989
Additional Information: TUG4
Venue - Dates: Optical Fiber Communication (OFC '89), United States, 1989-02-01


Local EPrints ID: 77546
PURE UUID: 5a6ca64d-4cf8-44d3-a780-71108d7ebc43

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:31

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Author: W.L. Barnes
Author: D.J. Taylor
Author: M.E. Fermann
Author: J.E. Townsend
Author: L. Reekie
Author: D.N. Payne

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