Novel light path coupling optical fiber array

Abstract

The invention relates to a novel light path coupling fiber array. The novel light path coupling fiber array comprises a substrate, a cover plate and a strip-shaped optical fiber. The novel light path coupling optical fiber array is characterized in that a concave groove with high evenness is formed in the substrate, a bare fiber part of the strip-shaped optical fiber is arranged in the concave groove, and the cover plate, the strip-shaped optical fiber and the substrate are fixedly bonded through glue. Compared with the prior art, the novel light path coupling optical fiber array has the advantages that, under the condition that accuracy of light guiding is ensured, the production cost of the optical fiber array is reduced greatly.

Description

technical field [0001] The invention relates to the field of optical fiber communication and the field of optical fiber sensing, more specifically, the invention relates to an optical fiber array that facilitates optical path coupling between bare optical fibers and optical devices. Background technique [0002] In conventional optical fiber arrays, in order to locate the spacing between bare optical fibers with high precision and facilitate coupling with other optical devices, the optical path coupling optical fiber arrays in the prior art mainly have the following two structural forms: [0003] V-groove fiber array: use a V-groove substrate (see figure 1 ), ribbon optical fiber, and cover plate to make optical fiber array. The production method is roughly as follows: the V-shaped groove is used as the base for carrying the optical fiber, the optical fiber is placed in the V-shaped groove, and the bare optical fiber is pressed by the cover plate, glue is filled in the subs...

AI Technical Summary

Problems solved by technology

The equipment is expensive and the cost of maintaining the equipment is high, resulting in the high price of the V-groove, which leads to the high price of the fiber array

[0008] Although the V-groove optical fiber array technology has matured, due to the strict technical requirements on the angle and depth of the V-groove when processing the V-groove, there are strict requirements on the cutting tool and processing equipment, resulting in V-groove optical fibers Arrays are inefficient to produce and very expensive

The use of flat substrates needs to overcome the problem of flatness of the bearing surface. Using flat substrates with high flatness has no advantage in price compared with V-groove substrates. Using flat substrates with low flatness requirements requires more Use special fixtures, and there are many production processes, which affects production efficiency and product yield

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