Abstract

Tuning of both the pump laser, a Ho:Tm:YLF laser operating on the ⁵I₇–⁵I₈ transition, and an AgGaSe₂ parametric oscillator has been demonstrated. Tuning of the Ho:Tm:YLF laser is complicated but not frustrated by the existence of both CO₂ and H₂O lines in the vicinity of the laser transition. Tuning of the parametric oscillator was achieved by tuning of the pump laser. Injection seeding of the parametric oscillator on the nonresonant signal was also demonstrated. In addition, the measured efficiencies of the parametric oscillator were compared for two different methods, measuring the parametric-oscillator output energy and measuring the energy depleted from the pump. By comparison of these measurements, the intrinsic efficiency of the parametric oscillator can be determined.

© 1994 Optical Society of America

Spectroscopic and diode-pumped-laser properties of TM,Ho:YLF; Tm, Ho:LuLF; and Tm,Ho:LuAG crystals: a comparative study

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