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(a) Experimental set up used to evaluate optical propagation loss and the magneto-optical TE-TM mode conversion. Spatially modulated light streak for TM-mode excitation at (b) and (c) under magnetic field of the waveguide annealed at . (d) Mode conversion ratio as a function of light propagation length at (triangles) and (circles).
Maximum mode conversion ratio as a function of wavelength of waveguide without thermal annealing (open circles) and with annealing at (solid circles).
(a) Operational wavelength range for the complete mode conversion at five different annealing temperatures from including the as-grown temperature of . (b) Phase mismatch of the waveguide with annealing at (circles) and without annealing (squares).
(a) Isolation ratio as a function of magnetic field at (triangles) and (circles). (b) Maximum isolation as a function of wavelength.
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