Measurement of the figure of merit of indigenously developed Nd-doped phosphate laser glass rods for use in high power lasers

Pramana

S Jain²  A P Kulkarni1²  P D Gupta²  A K Mandal¹  P A Naik²  B Karmakar¹  R Sen¹  A S Joshi²  M P Kamath²  K Annapurna¹ 

[1] Glass Division, Central & Glass Ceramic Research Institute, Kolkata 700 032, India$$;Laser Plasma Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, India$$

关键词: 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.;   

DOI  :  

学科分类：物理（综合）

来源: Indian Academy of Sciences

【 摘 要 】

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 (𝑛2) and hence the figure of merit 𝐹 = 𝜎/𝑛2 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.

【 授权许可】

Unknown