Journal
OPTICS COMMUNICATIONS
Volume 345, Issue -, Pages 111-115Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2015.01.058
Keywords
Nd:GGG; Diode-pumped laser; 1.3 mu m
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Funding
- National Natural Science Foundation of China [61275050]
- Specialized Research Fund for the Doctoral Program of Higher Education [20120121110034, 20130121120043]
- Fundamental Research Funds for the Central Universities [2013121022]
- Natural Science Foundation of Fujian Province [2014J01251]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
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We report on the first continuous-wave laser operation of a diode-pumped Nd:GGG single crystal at several emission wavelengths in the 1.33 mu m spectral domain. Multi-wavelength laser operation at 1324, 1331 and 1337 nm with a maximum laser output power of 1.83 W and a laser slope efficiency of 28.9% for an output coupler transmission of 2.2% is obtained in the free-running regime. By inserting and tilting a 0.1-mm BK7 glass etalon to modulate the losses inside the laser cavity, single wavelength lasing at 1324 nm and 1347 nm are also achieved with maximum output powers of about 0.77 W and 0.41 W as well as laser slope efficiencies of 15.2% and 12.6%, respectively. Further increasing the pump power, based on the position of the etalon leading to the single laser wavelength operation at 1347 nm, stable dual-wavelength laser operation is demonstrated at 1337 and 1347 nm with a maximum output power of 0.61 W. (C) 2015 Elsevier B.V. All rights reserved.
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