Optical fiber array and silicon optical module

By adjusting the length of the fiber fiber naked fiber segment in the optical fiber array, the problem of inconsistency of the fiber optic light in the silicon optical module in the silicon optical module has realized the uniformity of the light power between the channels and meets the automatic debugging needs.

CN222394193UActive Publication Date: 2025-01-24武汉钧恒科技有限公司
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Patent Information

Application Number
CN202421290500.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-06
Publication Date
2025-01-24
Estimated Expiration
2034-06-06

AI Technical Summary

Technical Problem

In mass production, it is difficult to achieve consistency of the average optical power of the four optical fibers in four optical fibers, resulting in difficulty in debugging and the inability to realize automatic software debugging.

Method used

Design an optical fiber array in which the bare fiber segments of multiple optical fibers are of different lengths. At least one of the optical fibers has a bare fiber segment that is 30um shorter than other optical fibers to ensure that the difference in optical power between each channel is less than 1dB.

Benefits of technology

By adjusting the length of the naked fiber segment in the fiber array, the uniformity of the light power between each channel is realized, so that the silicon light module meets the automatic debugging needs.

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Abstract

The utility model relates to an optical fiber array, which comprises a plurality of optical fibers and a holding part for configuring and holding the plurality of optical fibers in parallel, all the optical fibers are provided with bare fiber sections extending out of a port of the holding part, and the length of the bare fiber section extending out of at least one optical fiber in all the optical fibers is 30 microns shorter than the length of the bare fiber sections extending out of other optical fibers. And the bare fiber sections extending out of other optical fibers are the same in length. A silicon optical module is characterized in that an optical fiber with the length of 30 [mu] m extends out of a bare fiber section in a coupling optical fiber array corresponding to an optical output waveguide with large optical output power in a silicon optical chip, and other optical output waveguides in the silicon optical chip correspond to other optical fibers in the coupling optical fiber array. The silicon optical module has the beneficial effects that when the end face of the optical fiber is farther from the silicon optical chip, the coupling insertion loss can be increased by about 1dB, so that the light-emitting power of the channel can be reduced by about 1dB, the light-emitting power of other channels is not influenced, and finally, the light-emitting power difference between the channels is less than 1dB, so that the silicon optical module meets the automatic debugging requirement.
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