Preparation method of space optical isolator and optical waveguide based on oxygen ion implantation of terbium gallium garnet optical waveguide
A technology of terbium gallium garnet and oxygen ion implantation, which is applied to optical waveguides, light guides, instruments, etc., to achieve the effect of improving coherent signal-to-noise ratio, reducing loss, and ensuring that the linear polarization direction remains unchanged.
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Embodiment 1
[0035] Such as figure 2 As shown, a method for preparing an optical waveguide based on oxygen ion implantation of terbium gallium garnet crystal includes the following steps:
[0036] (1) Optically polish the surface to be processed of the terbium gallium garnet crystal 10, and remove the surface impurities of the polished terbium gallium garnet crystal after optical polishing; c axis is vertical;
[0037] (2) Using an ion beam accelerator to emit an oxygen ion beam 8 to bombard the surface of the terbium gallium garnet crystal 10 to form a planar optical waveguide 9 with a thickness of 8 μm on the polished surface of the directly bombarded terbium gallium garnet crystal 10;
[0038] The oxygen ion beam 8 emitted by the ion beam accelerator has an energy of 15Mev and a dose of 1×10 15 ions / cm 2 ;
[0039] (3) A diamond cutting blade 11 is used in the planar optical waveguide 9 to cut two parallel grooves 12, the groove 12 has a depth of 8 μm and a width of 100 μm; the distance betwee...
Embodiment 2
[0043] A method for preparing an optical waveguide based on oxygen ion implantation of terbium gallium garnet crystal includes the following steps:
[0044] (1) Optically polish the surface to be processed of the terbium gallium garnet crystal 10, and remove the surface impurities of the polished terbium gallium garnet crystal after optical polishing; c axis is vertical;
[0045] (2) Using an ion beam accelerator to emit an oxygen ion beam 8 to bombard the surface of the terbium gallium garnet crystal 10, and form a flat optical waveguide 9 with a thickness of 9 μm on the polished surface of the terbium gallium garnet crystal 10 directly bombarded;
[0046] The oxygen ion beam 8 emitted by the ion beam accelerator has an energy of 16Mev and a dose of 5×10 15 ions / cm 2 ;
[0047] (3) A diamond cutting blade 11 is used to cut two parallel grooves 12 in the planar optical waveguide 9, the groove 12 has a depth of 9 μm and a width of 150 μm; the interval between the two grooves 12 is 25 μ...
Embodiment 3
[0051] A method for preparing an optical waveguide based on oxygen ion implantation of terbium gallium garnet crystal includes the following steps:
[0052] (1) Optically polish the surface to be processed of the terbium gallium garnet crystal 10, and remove the surface impurities of the polished terbium gallium garnet crystal after optical polishing; c axis is vertical;
[0053] (2) Using an ion beam accelerator to emit an oxygen ion beam 8 to bombard the surface of the terbium gallium garnet crystal 10 to form a planar optical waveguide 9 with a thickness of 10 μm on the polished surface of the terbium gallium garnet crystal 10 directly bombarded;
[0054] The oxygen ion beam 8 emitted by the ion beam accelerator has an energy of 17 Mev and a dose of 10×10 15 ions / cm 2 ;
[0055] (3) A diamond cutting blade 11 is used in the planar optical waveguide 9 to cut two parallel grooves 12, the groove 12 has a depth of 10 μm and a width of 200 μm; the distance between the two grooves 12 is ...
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