Source: http://aoot.osa.org/ome/abstract.cfm?uri=ome-9-4-1907
Timestamp: 2019-04-18 23:09:42+00:00

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In this work, we introduced a Nd:YGG single mode planar waveguide fabricated by swift heavy ion irradiation. The initial Kr8+ ions beam energy was 2.1 GeV, after passing through the Al foil the beam energy came to 30 MeV. The implantation fluence was 2×1012 ions/cm2. A well region with the refractive index increment in near the surface was obtained after ion irradiation. This index increment was attributed to the ion-induced electronic damage. The characterization of the optical planar waveguide in Nd:YGG crystal was tested by prism coupling and end face coupling method. The micro-luminescence and Raman properties of our ion-irradiation Nd:YGG crystal were investigated. This work has reference value for integrated optical devices on Nd:YGG crystal.
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Fig. 1. Reflective light intensity (TM polarized) reflected from the prism versus effective refractive index profile (a) 633 nm; (b) 1539 nm.
Fig. 3. (a) Electronic and nuclear energy loss simulated by the stopping and range of ions in matter (SRIM) 2010 program for Kr8+ ions irradiated into the Nd:YGG crystal; (b) calculated refractive index profile.
Fig. 4. The near-filed light intensity profile of Nd:YGG planner waveguide measured by end face coupling method at the wavelength of 633 nm (a) experimentally and (b) simulated by assuming the refractive index profile (Fig. 3(b)).
Fig. 5. The micro-luminescence emission spectra of Nd3+ ions for transition4F3/2–4I9/2 at room temperature, (b) is normalized spectra by use of (a).
Fig. 6. The Raman spectrum of Nd:YGG with a laser excitation wavelength of 633 nm.

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