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  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper ca_6_5

Growth, Spectroscopy and Laser Operation of Tm,Ho:CNGG: A Promising Disordered Crystal for Mode-Locked Lasers

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Abstract

Mode-locked (ML) lasers emitting in the spectral range of ~2 μm are based on Thulium (Tm3+) or Holmium (Ho3+) ions. The former one typically emits slightly below 2 μm where the atmosphere water vapour absorption can constrain the emission bandwidth of a ML laser. A disordered host material can provide inhomogeneous broadening of the emission spectra beyond 2 μm: recently, a Tm3+-doped disordered CNGG-type garnet generated 78 fs pulses at 2017 nm [1]. Another route is the use of Tm3+,Ho3+ codoped materials for further spectral broadening.

© 2019 IEEE

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