Abstract
The significance of temperature dependence of the wavelength and the laser emission threshold of fiber-taper-coupled Er 3+-doped tellurite glass microsphere was analyzed. A rise in the microsphere laser emission threshold and a shift in emitted laser wavelength occurred with the temperature. A shift in the resonant wavelength of the pumping light was caused by the changes of the size and refractive index of the microsphere. A quasi-four-level model was used to show the reduction of laser threshold, achieved at lower temperatures and higher Q values of the microsphere laser.
Original language | English (US) |
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Pages (from-to) | 5380-5382 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 26 |
DOIs | |
State | Published - Dec 29 2003 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)