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Optical damage and the third-order nonlinearity in GeGaS glasses

Wei, T. X. ; The Research Institute of Advanced Technologies, Ningbo University, Ningbo 315211, China ; Zhang, Z. ; [et al.]

Virtual Company of Physics ; 2022

In: Chalcogenide Letters Vol. 19, No. 9 ( 2022-09-25), p. 627-635

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In: Chalcogenide Letters, Virtual Company of Physics, Vol. 19, No. 9 ( 2022-09-25), p. 627-635

Abstract: We have measured optical properties of GexGa4S96-x (x=22.5, 27, 30, 33.3 and 36) glasses including optical bandgap Eg, hardness, linear and nonlinear refractive index and laser damage threshold. We found that, both Eg and laser damage threshold exhibit maximum values in Ge30Ga4S66 glass, linear refractive index increases with increasing Ge content, but nonlinear refractive index has a minimum in Ge30Ga4S66, and their correlation can be well described by the Miller’s rule. We conclude that, Ge30Ga4S66 glass with chemically stoichiometric composition might be ideal for the chalcogenide-based optical amplifiers since it has reasonable optical nonlinearity, and high figure of merit (FOM) and laser damage threshold.

Type of Medium: Online Resource

ISSN: 1584-8663

URL: Issue

URL: Journal

URL: Article

DOI: 10.15251/CL.2022.199

DOI: 10.15251/CL

DOI: 10.15251/CL.2022.199.627

Language: Unknown

Publisher: Virtual Company of Physics

Publication Date: 2022

detail.hit.zdb_id: 2170054-0