Pramana

, Volume 44, Issue 3, pp 237–248

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

  • H K T Kumar
  • K Appaji Gowda
  • K P J Reddy
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 lasersmode lockingPicosecond pulsesfrequency-doublingpulsewidth-band-width product

PACS Nos

42.5542.6042.65

Copyright information

© Indian Academy of Sciences 1995

Authors and Affiliations

  • H K T Kumar
    • 1
  • K Appaji Gowda
    • 1
    • 2
  • K P J Reddy
    • 1
    • 3
  1. 1.Department of PhysicsSiddaganga Institute of TechnologyTumkurIndia
  2. 2.Department of PhysicsBangalore UniversityBangaloreIndia
  3. 3.Department of Aerospace EngineeringIndian Institute of ScienceBangaloreIndia