P. Peterson et Mp. Sharma, BACK-REFLECTION PUMPING VERSUS CONTRADIRECTIONAL PUMPING IN UP-CONVERSION SOLID-STATE LASERS, Optics communications, 146(1-6), 1998, pp. 189-195
We show that a change from contradirectional pumping to back-reflectio
n pumping in upconversion lasers can reduce the threshold by 50%, incr
ease the slope efficiency by 87%, and increase the laser output power
by a factor of two to six depending on the pump powers. Our prediction
s are anchored to an upconversion Pr3+ ZBLAN fiber laser experiment to
within 10%. (C) 1998 Published by Elsevier Science B.V.