【摘 要】
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We report the fabrication of planar waveguides in Nd3+-doped phosphate glass by helium ion implantation.The guiding properties of the waveguide are evaluated by
【机 构】
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State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mech
论文部分内容阅读
We report the fabrication of planar waveguides in Nd3+-doped phosphate glass by helium ion implantation.The guiding properties of the waveguide are evaluated by a prism coupler and end-face coupling methods.The refractive index profile of the waveguide is reconstructed by using the intensity calculation method.Absorption and fluorescence investigations reveal that helium ion implantation causes only slight changes in the optical properties,suggesting the possible application of the fabricated structures as waveguide lasers.In the latest decade,Nd3+-doped phosphate glass has received much attention owing to its application in a series of high power laser devices used for laserdriven inertial confined fusion (ICF) and optical communications.It has excellent laser performance indicators,such as a large emission cross section,a long fluorescence lifetime and acceptable thermal-physical properties.Moreover,phosphate glasses are desirable for the fabrication of compact waveguide laser devices.Several techniques,such as ion exchange and femtosecond laser inscription,have been used to fabricate waveguides in phosphate glass.[1-3]
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