Large aperture PPMgLN based high-power optical parametric oscillator at 38 µm pumped by a nanosecond linearly polarized fiber MOPA
Lin, Dejiao, Alam, Shaif-ul, Shen, Yonghang, Chen, Tao, Wu, Bo and Richardson, David J. (2012) Large aperture PPMgLN based high-power optical parametric oscillator at 38 µm pumped by a nanosecond linearly polarized fiber MOPA. Optics Express, 20, (14), 15008-15014. (doi:10.1364/OE.20.015008).
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We report a large aperture PPMgLN based OPO generating 21W of average output power at a slope efficiency of 45%. The OPO is pumped with the output from a polarization maintaining Ytterbium doped fiber MOPA operating at 1060nm producing 20ns pulses at a repetition rate of 100kHz and an average output power of 58W (after the isolators). A maximum of 5.5W of optical power was recorded at the idler wavelength of 3.82μm without thermal roll-off. The pulse rise/fall time plays a significant role in the OPO conversion efficiency and that further enhancements in the efficiency should be possible using pulses with faster rise and fall times.
|Digital Object Identifier (DOI):||doi:10.1364/OE.20.015008|
|Keywords:||fiber optics and optical communications, fiber optics amplifiers and oscillators, nonlinear optics, pulse shaping|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||Faculty of Physical Sciences and Engineering > Optoelectronics Research Centre
|Date Deposited:||16 Jul 2012 09:14|
|Last Modified:||27 Mar 2014 20:23|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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