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- W2007505233 abstract "The performance of several Nd 3+ doped laser materials were compared in a 1 watt diode-end-pumped configuration. The host materials included in this study were YVO 4 , YAG, BEL, Cr:GSGG, and LNA. Measurements were limited to laser performance on the 4 F 3/2 --> 4 I 11/2 transition. The predictive quality of traditional modelling was examined by generating detailed theoretical performance curves for all the materials. The best theoretical fit to the data was obtained by using cross section values deter-mined by the Birnbaum laser method and quantum efficiencies (QE) greater than 94% for all the materials except BEL and Cr:GSGG. The low QE for Cr:GSGG can be traced to excited state absorption into the Cr bands. bands. Uncertainty in the fit relates to the tradeoff between QE and loss. A performance comparison between coated and uncoated YAG suggests that surface losses contribute more than expected. The data and the model indicate that all materials studied here (except for Cr:GSGG) should display approximately a 55% or greater slope efficiency (optical-to-optical) above 1 watt of pump power if fabricated with a monolithic high reflector and antireflective coating at the appropriate faces. Based on projections from the model and data from the literature LNA has the potential to be a high efficiency and energy storage laser. Utilizing a new 2 watt 20 stripe diode laser array, 1.22 watts at an optical efficiency of 61% was obtained at 1064 nm in the TEM 00 from a Nd:YVO 4 crystal." @default.
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- W2007505233 date "1989-09-25" @default.
- W2007505233 modified "2023-09-23" @default.
- W2007505233 title "Performance Comparisons Of Diode-Pumped Neodymium Laser Materials" @default.
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- W2007505233 doi "https://doi.org/10.1117/12.960605" @default.
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