Air-core polarization maintaining photonic crystal optical fiber
A photonic crystal fiber, polarization-maintaining technology, applied in polarized fibers, multi-core fibers, clad fibers, etc., can solve the problems of optical properties being greatly affected by temperature and increased fiber loss, and achieve polarization-maintaining performance and low loss. Transmission, the effect of low magnetic field susceptibility
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[0014] The present invention will be further described in detail below in conjunction with the drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and do not limit the present invention.
[0015] Such as figure 1 , figure 2 with image 3 As shown, a hollow-core polarization-maintaining photonic crystal fiber includes a glass tube 4, a microcapillary 3, a low-index core I1, and a low-index core II2.
[0016] Along the inner wall of the glass tube 4, several microcapillary tubes 3 are arranged to form the inner cladding area of the pores. The contact part of the peripheral part of the inner cladding area of the pores and the inner wall of the glass tube 4 is fixed on the inner wall of the glass tube 4 by welding, and the inner pores The middle part of the layer region is the low refractive index core I1, that is, 19 microcapillaries are drawn out as the core region, and both sides of the core region are l...
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