Pramana

, Volume 44, Issue 3, pp 237–248

Analysis of mode-locked internally frequency doubled broad-band continuous wave lasers

Authors

  • H K T Kumar
    • Department of PhysicsSiddaganga Institute of Technology
  • K Appaji Gowda
    • Department of PhysicsSiddaganga Institute of Technology
    • Department of PhysicsBangalore University
  • K P J Reddy
    • Department of PhysicsSiddaganga Institute of Technology
    • Department of Aerospace EngineeringIndian Institute of Science
Article

DOI: 10.1007/BF02848476

Cite this article as:
Kumar, H.K.T., Gowda, K.A. & Reddy, K.P.J. Pramana - J Phys (1995) 44: 237. doi:10.1007/BF02848476

Abstract

Closed-form analysis of pulse evolution in the transient regime in an actively modelocked internally frequency doubled broad-band continuous wave laser is presented. The analysis enables investigation of the effect of nonlinear crystal inside the laser cavity on mode-locked pulse parameters at the fundamental frequency. It is shown that the presence of internal second harmonic crystal broadens the fundamental mode-locked pulse while accelerating the approach of the system to steady-state. The dependence of pulse parameters on the bandwidth of the tuning element, modulation depth of the active mode-locker and conversion efficiency of the frequency doubler is presented in detailed graphical form.

Keywords

Broad-band lasers mode locking Picosecond pulses frequency-doubling pulsewidth-band-width product

PACS Nos

42.55 42.60 42.65

Copyright information

© Indian Academy of Sciences 1995