Title :
Characterization of spontaneous and stimulated emission from praseodymium (Pr3+) ions doped into a silica-based monomode optical fiber
Author :
Percival, R. Michael ; Phillips, Mark W. ; Hanna, David C. ; Tropper, Anne C.
Author_Institution :
Dept. of Phys., Southampton Univ., UK
fDate :
10/1/1989 12:00:00 AM
Abstract :
The fluorescence spectrum of praseodymium in a silica host has been investigated through the direct excitation of the 3P 0, 1D2, and 1G 4 absorption bands, which occur at around 488, 590, and 974 nm, respectively. The observed spontaneous emission consists of four main bands with peaks at 633, 707, 888, and 1080 nm. In each case the level principally responsible for these emissions was found to be 1D 2. Stimulated emission has been seen for the first time at 888 nm for a threshold of 10 mW absorbed power. In addition, the lasing characteristics at 1080 nm have been investigated
Keywords :
fibre optics; fluorescence; impurity and defect absorption spectra of inorganic solids; infrared spectra of inorganic solids; laser transitions; luminescence of inorganic solids; optical fibres; praseodymium; silicon compounds; solid lasers; stimulated emission; visible spectra of inorganic solids; 10 mW; 1080 nm; 488 nm; 590 nm; 633 nm; 707 nm; 888 nm; 974 nm; Pr3+ ion doping; absorbed power threshold; absorption bands; direct excitation; emission energy level; fluorescence spectrum; lasing characteristics; silica host; silica-based monomode optical fiber; spontaneous emission; spontaneous emission bands; stimulated emission; Absorption; Fiber lasers; Fluorescence; Glass; Laser excitation; Laser transitions; Optical fibers; Pump lasers; Silicon compounds; Stimulated emission;
Journal_Title :
Quantum Electronics, IEEE Journal of
