We report what is to our knowledge the first observation of erbium fluorescence at the optical communication wavelength of 1.5µm in a perfluorinated medium. Using a Nd:YAG (355-nm) source, we observed fluorescence of the I<sub>13/2</sub><sup>4</sup>– I<sub>15/2</sub><sup>4</sup> transition with a peak wavelength of 1.535µm and with a full width at half-maximum of 28 nm. These results can lead to new active devices that use all-fluorinated polymers.
© 2003 Optical Society of America
(140.4480) Lasers and laser optics : Optical amplifiers
(160.5470) Materials : Polymers
(230.7370) Optical devices : Waveguides
(300.1030) Spectroscopy : Absorption
(300.2140) Spectroscopy : Emission
Ken Kuriki, Susumu Nishihara, Yukihisa Nishizawa, Tadahiko Yoshinaga, Akihiro Tagaya, Yasuhiro Koike, and Yoshi Okamoto, "Observation of fluorescence in an optically pumped erbium-containing perfluorinated medium at 1.5 µm," Opt. Lett. 28, 570-572 (2003)