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      https://www.ias.ac.in/article/fulltext/pram/082/01/0159-0163

    • Keywords

       

      High power Nd:glass laser; figure of merit; stimulated emission cross-section; coefficient of intensity-dependent refractive index; Nd-doped phosphate laser glass; Abbe number.

    • Abstract

       

      High energy, high power (HEHP) Nd:glass laser systems are used for inertial confinement fusion and equation of state (EOS) studies of materials at high temperature and pressure. A program has been undertaken for the indigenous development of Nd-doped phosphate laser glass rods and discs for HEHP lasers. In this paper, we report the characterization of the Nd-doped phosphate laser glass rods produced under this program and compare the indigenously developed laser glass to LHG-8 laser glass of M/s Hoya, Japan. We experimentally measured the values of the stimulated emission cross-section (𝜎) and coefficient of intensity-dependent refractive index ($n_2$) and hence the figure of merit $F = \sigma/n_2$ of the indigenous phosphate laser glass rods. This value of figure of merit is found comparable to the reported value of identically doped Nd:glass rods.

    • Author Affiliations

       

      A P Kulkarni1 S Jain1 M P Kamath1 A S Joshi1 P A Naik1 P D Gupta1 K Annapurna2 A K Mandal2 B Karmakar2 R Sen2

      1. Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
      2. Glass Division, Central & Glass Ceramic Research Institute, Kolkata 700 032, India
    • Dates

       
  • Pramana – Journal of Physics | News

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