Demonstration of a CW diode-pumped Ar metastable laser operating at 4 W | Zendy

JinHwan Han | Zendy; Michael C. Heaven | Zendy; Paul J. Moran | Zendy; Greg A. Pitz | Zendy; Eric M. Guild | Zendy; Carl Sanderson | Zendy; Brett H. Hokr | Zendy

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Demonstration of a CW diode-pumped Ar metastable laser operating at 4 W

Author(s) -

JinHwan Han,

Michael C. Heaven,

Paul J. Moran,

Greg A. Pitz,

Eric M. Guild,

Carl Sanderson,

Brett H. Hokr

Publication year - 2017

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.42.004627

Subject(s) - lasing threshold , population inversion , materials science , excited state , atomic physics , torr , laser , metastability , diode , helium , optical pumping , excitation , laser pumping , argon , optics , optoelectronics , physics , quantum mechanics , thermodynamics

Optically pumped rare gas lasers are being investigated as potential high-energy, high beam quality systems. The lasing medium consists of rare gas atoms (Rg=Ne, Ar, Kr, or Xe) that have been electric discharge excited to the metastable np 5 (n+1)s P3 2 state. Following optical excitation, helium (He) at pressures of 200-1000 Torr is used as the energy transfer agent to create a population inversion. The primary technical difficulty for this scheme is the discharge production of sufficient Rg* metastables in the presence of >200 Torr of He. In this Letter, we describe a pulsed discharge that yields >10 13 cm -3 Ar* in the presence of He at total pressures up to 750 Torr. Using this discharge, a diode-pumped Ar* laser providing 4.1 W has been demonstrated.

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