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oai:gredos.usal.es:10366/1468602025-04-30T20:35:29Zcom_10366_133237com_10366_4512com_10366_3823col_10366_133238

An, Qiang Jia, Yuechen Liu, Hongliang Vázquez de Aldana, Javier R. Chen, Feng 2021-06-22T07:26:58Z 2021-06-22T07:26:58Z 2014-03 An, Q., Jia, Y., Liu, H., de Aldana, J. R. V., & Chen, F. (2014). Ultrafast laser inscribed cladding waveguides in Nd:YAG crystal for mid-infrared wavelength. Optics & Laser Technology, 56, 382-386. https://doi.org/10.1016/j.optlastec.2013.09.011 0030-3992 http://hdl.handle.net/10366/146860 10.1016/j.optlastec.2013.09.011 We report on tubular cladding optical waveguides fabricated in neodymium doped yttrium aluminum garnet (Nd:YAG) crystal by ultrafast laser inscription. The structure can support guidance at the wavelength of 4 μm for the TE and TM polarizations. The refractive index contrasts of the cladding waveguides for the two transverse polarizations were estimated to be ΔnTE≈−7.5×10−3 and ΔnTM≈−6.5×10−3. The propagation losses of the cladding waveguides at the wavelength of 4 μm were determined to be as low as ~0.7 dB/cm for the TE polarization and ~1.0 dB/cm for the TM polarization. eng info:eu-repo/semantics/openAccess Cladding waveguide Nd:YAGMid-infrared Ultrafast laser inscribed cladding waveguides in Nd:YAG crystal for mid-infrared wavelength info:eu-repo/semantics/article