Tunable dispersion compensator designing and making method

A technology of dispersion compensator and design method, which is applied in the directions of eliminating distortion/dispersion, coupling of optical waveguides, electromagnetic wave transmission systems, etc., can solve the problems of large sampling period variation range, difficult fabrication, and incomplete realization of equivalent conversion, etc. Achieve the effect of improving performance, simplifying the production process, and avoiding chirp
CN1641390AInactive Publication Date: 2005-07-20TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2005-07-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The design and production of tunable dispersive compensator belongs to the fiber communications technological field. The hard core of this invention is a hit-the-toe sampling fiber raster with a twice time lag curve. The fiber raster adopts a linear chatter phasic templet production, and uses the chatter sampling period (CSP) to compensate the chatter grating period (CGP) from the templet to make the change bound of the raster sampling period narrow and then to make the producing process more simply and more steady. Otherwise in the design and producing process of the fiber raster, compensate the average refractive index change from the toe-hit by introducing the CSP. Therefore the production and toe-hit can be complete at a time in which just once exposal is needed. Finally fix the fiber raster on the exact mechanical tuning device, to extend the fiber raster under the control of microcomputer and then control the dispersive compensatory quantity.
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Description

technical field

[0001] The design and manufacturing method of a tunable dispersion compensator belongs to the technical field of optical fiber communication, and particularly relates to the field of fiber grating manufacturing. Background technique

[0002] Generally, fiber dispersion compensation can be realized by using dispersion compensating fiber or dispersion compensating devices, such as dispersion compensating fiber grating, dispersion compensating etalon, etc. The implementation method of this dispersion compensation is fixed, and once the system is designed, the amount of dispersion compensation cannot be changed. The accumulation of dispersion is a process that changes with time. The system will be disturbed by many external factors, resulting in dynamically changing dispersion. This requires a dynamically tunable dispersion compensation device to monitor and track the changing dispersion. Compensation. Among them, the implementation of tunable dispersion is the ...

Claims

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