4.6 Article

Dual-wavelength Nd:YAG crystal laser at 1074 and 1112 nm

Journal

OPTICS LETTERS
Volume 36, Issue 13, Pages 2554-2556

Publisher

OPTICAL SOC AMER
DOI: 10.1364/OL.36.002554

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Funding

  1. National Natural Science Foundation of China (NSFC) [60978027]
  2. Natural Science Foundation of Shandong Province, China [2009ZRB01907, ZR2010EM001]
  3. Program for New Century Excellent Talents in University
  4. Independent Innovation Foundation of Shandong University [2009TS129, 2010JC015, 2010TS090]

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We reported an efficient laser-diode (LD) end-pumped CW dual-wavelength Nd:YAG crystal laser operating at 1074 and 1112 nm simultaneously, for the first time to our knowledge. The maximum output power was 3.15 W with an optical conversion efficiency of 23.6%. Considering the broad absorption of carbonylhemoglobin and hemoglobin located at about 538 and 555 nm, respectively, we proposed that this dual-wavelength laser is an important source for detecting carbon monoxide poisoning by simple frequency doubling. (C) 2011 Optical Society of America

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