TPS Nathan
Articles written in Pramana – Journal of Physics
Volume 56 Issue 1 January 2001 pp 77-85 Research Articles
PK Mukhopadhyay Jogy George SK Sharma Rakesh Kapoor TPS Nathan
In this paper an alternative approach for measurement of
Volume 58 Issue 4 April 2002 pp 657-668 Research Articles
Effect of absorbed pump power on the quality of output beam from monolithic microchip lasers
Pranab K Mukhopadhyay K Ranganathan Jogy George SK Sharma TPS Nathan
The dependence of the beam propagation factor (
Volume 59 Issue 1 July 2002 pp 75-89 Research Articles
Pranab K Mukhopadhyay K Ranganathan Jogy George SK Sharma TPS Nathan
The effect of Nd3+ concentration on the CW and Q-switched laser performances at 1064 nm from Nd: YVO4 has been studied under diode laser pumping in identical laser configuration. The Nd3+ concentrations used were 1, 2 and 3 at.% in YVO4 crystals. Under the CW operations we have compared the thermal lensing effect, slope efficiencies and also the beam quality at the fourth-order degeneracy configuration. Q-switching was done with the help of an acousto-optic modulator and we have compared the pulses obtained from Nd: YVO4 laser with different doping concentration. It was found that the 1 at.%-doped crystal is the best, offering highest optical-to-optical conversion efficiency (55%), lowest fractional heat load (24%), highest pulse energy (80
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