Jackson Stuart D, Mossman Simon
Optical Fibre Technology Centre, Australian Photonics CRC, University of Sydney, 206 National Innovation Centre, Australian Technology Park, 1430 Eveleigh, Sydney, New South Wales 1430, Australia.
Appl Opt. 2003 Jun 20;42(18):3546-9. doi: 10.1364/ao.42.003546.
The characteristics of the performance of a diode-cladding-pumped Yb3+, Ho(3+)-doped silica fiber laser are presented. To our knowledge this in the first demonstration of a Yb3+, Ho(3+)-doped fiber laser, and a maximum output power of 0.85 W was achieved for a launched pump power of 10.9 W. For launched pump powers < 7 W, the slope efficiency was approximately 12.5%. Visible fluorescence emission with peaks at approximately 485, approximately 550, and approximately 660 nm measured at the output from the laser suggests that excited-state absorption and energy-transfer upconversion losses may impair the functioning of the laser. Increasing the Yb3+ and Ho3+ concentrations and the Yb3+:Ho3+ concentration ratio may lead to an improvement in the overall efficiency of the device.
