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      https://www.ias.ac.in/article/fulltext/pram/093/04/0058

    • Keywords

       

      Diode pump alkali laser; alkali laser; gas laser; optical pumping

    • Abstract

       

      This paper presents a comprehensive study of the design and parametric investigation of a diode pump alkali laser (DPAL): an emerging, high quantum efficiency, challenging laser system in the near-infrared region with potential for numerous applications. It covers the design and development of a diode pumped alkali (rubidium) laser (Rb:DPAL) gain cell and associated subsystems including the glove box-based alkali transfer set-up. Laser generation ($\lambda \sim 795 \rm{nm}$) in a continuous wave (CW) mode with end-pumped geometry in the Rb cell is reported. Comparative studies on the Rb-DPAL output were carried out with various critical operating parameters such as buffer gas pressure, buffer gas composition, gain medium temperature and pump power/intensity. The experimental results were analysed and discussed in light of the efficacy of the pump beam absorption, the laser level kinetics and effective lasing volume in the Rb-DPAL gain cell.

    • Author Affiliations

       

      R BISWAL1 G K MISHRA1 S K AGRAWAL2 S K DIXIT3 S V NAKHE4

      1. Laser Development and Industrial Application Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
      2. Laser Control and Instrumentation Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
      3. Fibre Sensor and Optical Spectroscopy Section, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
      4. Laser Group, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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