A Polarization-Maintaining Dispersion Compensation Microstructure Optical Fiber
A technology of micro-structured optical fiber and color cast, applied in the field of optical fiber communication, can solve the problems of inability to perform dynamic adjustment, inability to satisfy dispersion compensation, variable polarization direction, etc.
Active Publication Date: 2021-01-15
TIANJIN XINMAO SCI & TECH +1
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Problems solved by technology
The disadvantage of the above solution is that once the structure of the polarization-maintaining dispersion compensation microstructured fiber is determined, the polarization direction that can compensate the dispersion of the polarization-maintaining fiber will also be fixed, and cannot be dynamically adjusted, and cannot meet the requirement of variable polarization direction for dispersion compensation
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[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.
[0022] see figure 1 , the specific structure of an embodiment of a polarization-maintaining dispersion-compensating microstructured optical fiber proposed by the present invention is given. The microstructure optical fiber includes an inner core region 1 , an inner cladding air hole 2 , an outer core region 3 , an outer cladding air hole 4 , a liquid crystal 5 and a quartz base material 6 . The optical fiber is centered on the central air hole 11 , and the optical fiber structure includes an inner core re...
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Abstract
A polarization-maintaining dispersion compensation microstructure optical fiber takes quartz as a substrate material. The microstructure optical fiber comprises an inner fiber core area, and inner cladding air holes, an outer fiber core area and outer cladding air holes which are sequentially arranged in a regular hexagon shape from inside to outside and wrap the outer layer of the inner fiber core area. The inner fiber core area is of a C6v symmetrical structure composed of a central air hole and surrounding quartz, the outer fiber core area is of a C6v symmetrical structure composed of air holes and surrounding quartz, and the central air hole and the air holes of the outer fiber core area are both filled with liquid crystals. According to the invention, the technical problem that the polarization direction to be compensated cannot be changed once determined in the dispersion compensation process is solved. By adopting the technical scheme, the result finally obtained at the communication wavelength of 1550nm is as follows: the negative dispersion obtained in an x polarization mode is -16040.3 ps / (nm.km), and the negative dispersion obtained in a y polarization mode is -12354.2 ps / (nm.km).
Description
technical field [0001] The invention relates to the field of optical fiber communication, in particular to a polarization-maintaining dispersion compensation microstructure optical fiber. Background technique [0002] With the rapid development of the field of high-speed optical communication, photonic crystal fibers are widely used due to the advantages of flexible parameter design. The traditional circularly symmetric single-mode fiber will transmit two orthogonal linear polarization modes at the same time. If the fiber is uniform and perfectly symmetrical in the transmission direction, the two orthogonal linear polarization modes will propagate forward at the same speed and the polarization mode will not change. However, it is impossible to achieve perfect circular symmetry in the actual fiber drawing process, and crosstalk between the two polarization modes will also occur during transmission, seriously affecting the quality of signal transmission. The polarization-main...
Claims
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IPC IPC(8): G02B6/024G02B6/02
CPCG02B6/023G02B6/02338G02B6/024
Inventor 王伟周凡迪杨骐豪李正然杨慢王彦龚琳
Owner TIANJIN XINMAO SCI & TECH