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Site-Selective Specirdsmpy of Thulium-Doped Glasses

Published online by Cambridge University Press:  15 February 2011

A. Pearson ,
J. R. Lincoln ,
W. S. Brocklesby  and
J. N. Carte
A. Pearson
Affiliation:
University of Southampton, Physics Department, Southampton, SO9 5NH, United Kingdom
J. R. Lincoln
Affiliation:
University of Southampton, Physics Department, Southampton, SO9 5NH, United Kingdom
W. S. Brocklesby
Affiliation:
University of Southampton, Physics Department, Southampton, SO9 5NH, United Kingdom
J. N. Carte
Affiliation:
University of Southampton, Physics Department, Southampton, SO9 5NH, United Kingdom
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Abstract

Laser operation has been demonstrated in Tm3+-doped optical fibres at several useful wavelengths, including 2.3μm, 2μm, 1.47μm and 800nm, and visible upconversion fluorescence observed in silica and ZBIAN hosts. The ground-state Stark structure is ∼600cm−1 wide, resulting in broad tuning ranges for the lasers studied so far. As several of these laser are operated quasifour level using the ground state multiplet, the structure of this multiplet influences the laser transitions significantly. We Ipresent site-selective line-narrowed fluorescence studies of thulium in ZBLAN1 and silica-based hosts at low temperatures, which show detail of Stark levels not present in the room-temperature luminescence spectrum. Comparison of these data for Tmi: ZBLAN with the performance of fibre lasers and amplifiers based on the 800nm transition explains aspects of the laser performance such as tuning range, and optimum pump wavelength for amplifiers. In addition these data give information about the site-to-site disorder within the inhcmogeneous line.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 244: Symposium J – Optical Waveguide Materials , 1991 , 197
Copyright
Copyright © Materials Research Society 1992

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References

REFERENCES

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