Title :
Improving the pumping efficiency of a Nd3+glass laser using dyes
Author :
Bhawalkar, D. ; Pandit, L.
Author_Institution :
Laser Division, Bhabha Atomic Research Centre, Bombay, India
fDate :
1/1/1973 12:00:00 AM
Abstract :
The efficiency of a Nd3+glass laser pumped by a xenon flash lamp was improved by circulating fluorescent dyes around the laser rod. The dyes used here absorb in the spectral region in which the neodymium ions do not absorb and fluoresce strongly at one of the pump bands of Nd3+. This results in a more efficient utilisation of the flashlamp light output. These dyes also prevent solarization due to their absorption in the ultraviolet region. A 38-percent decrease in threshold and a nearly 50-percent increase in slope efficiency were observed.
Keywords :
Electromagnetic wave absorption; Fluorescence; Glass; Laser beam cutting; Laser excitation; Neodymium; Optical filters; Optical pumping; Pump lasers; Xenon;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.1973.1077349