Abstract

The barium vapor laser (BVL) is a high duty cycle (~10 kHz) pulsed source which has demonstrated high average output power capability (~10 W) in the near-IR (1.13, 1.5 μm), and has potential for high average power generation in the mid-IR (2-5 μm) spectral region.1 Our previous investigations have identified the optimum operating conditions for lasing on the strong BVL transitions at 1.13 μm, 1.5 μm, 2.55 μm, 2.92 μm, and 4.7 μm lines in a small (30 cm3) externally heated device.2 This study established that optimum conditions for lasing at 2.55 μm were quite different for the other transitions in the BVL. Using the scaling information provided by this initial study, the output at 2.55 μm was scaled to 1.5 W in a large-scale (300 cm3) device.3 Our experience with parametric studies of laser performance has demonstrated that the excitation mechanisms for the mid-IR lines are complex. The upper laser levels for the 2-5 μm lines are not strongly connected to the ground state as is normal for the standard cyclic excitation scheme. More powerful techniques are therefore required to allow the excitation pathways to be unambiguously identified.

© 1991 Optical Society of America

PDF Article
More Like This
Investigation of a high-average-power mid-Infrared barium vapor laser

H. M. PASK and J. A. PIPER
WP1 Conference on Lasers and Electro-Optics (CLEO) 1988

Population-density measurements and the 2.55-μm laser line of a barium-vapor laser

Richard P. Mildren, Daniel J. W. Brown, Robert J. Carman, and James A. Piper
CWF23 Conference on Lasers and Electro-Optics (CLEO) 1995

Average power and efficiency increases in a barium-vapor laser with the addition of hydrogen

S.N. Halliwell and C. E. Little
CThN6 Conference on Lasers and Electro-Optics (CLEO) 1993

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription