@article {Sobolev:19,
	title = {Parametric amplification in large-aperture diffusion-bonded periodically poled crystals},
	journal = {Opt. Lett.},
	volume = {44},
	number = {5},
	year = {2019},
	month = {Mar},
	pages = {1261{\textendash}1264},
	publisher = {OSA},
	abstract = {With conventional poling techniques of pyroelectric crystals, the thickness of the periodically poled crystals is typically limited to 0.5\&amp;\#x2013;1\&amp;\#x00A0;mm. Such a small aperture of the crystal limits the amount of energy/power that this device may deliver. Here we discuss diffusion bonding as an alternative method to achieve a wider periodically poled crystal, with virtually unlimited width. It is shown that the amplified signal preserved a good beam profile despite a possible phase shift between the stitched crystals. This technique may be extended to larger aperture optical parametric amplifiers and allows for high energy output from periodically poled crystals.},
	keywords = {amplified spontaneous emission, Fiber optic amplifiers, Fresnel diffraction, numerical simulation, Optical amplifiers, Regenerative amplification},
	doi = {10.1364/OL.44.001261},
	url = {http://ol.osa.org/abstract.cfm?URI=ol-44-5-1261},
	author = {Eli Sobolev and Pavel Komm and Salman Noah and Marcus, Gilad}
}
