Manufacturing method of sintered and melted 980-1550nm optical isolator

A manufacturing method and optical isolator technology, applied in the field of communication, can solve the problems of inability to effectively meet the use requirements, the difficulty of optical fiber coupling, and the poor anti-interference effect, so as to improve the anti-interference ability, the coupling difficulty is small, and the optical loss is small. Effect

Pending Publication Date: 2022-04-22
厦门贝莱信息科技有限公司
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Problems solved by technology

[0004] In order to solve the above-mentioned problems in the prior art that the clear aperture of the complete optical fiber is 6um, the fiber coupling is difficult, the optical loss is large, the anti-interference effect is poor, and the use requirements cannot be effectively met, the present invention adopts the following technical solutions:

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  • Manufacturing method of sintered and melted 980-1550nm optical isolator
  • Manufacturing method of sintered and melted 980-1550nm optical isolator
  • Manufacturing method of sintered and melted 980-1550nm optical isolator

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Embodiment Construction

[0012] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] A method for manufacturing a sintered fusion 980-1550nm optical isolator, comprising the following steps: S1, preparing materials, such as figure 1 As shown, prepare Corning HI1060nm optical fiber, double-hole glass capillary, large glass tube, small glass tube, 0.25 intercept gradient index lens, single-fiber collimator and 1550nm polarization-independent isolator, wherein one side of the lens is a plane and the other side The plane is coated with a film system that transmits 1550nm and reflects 980nm. The inclination angle of the slope is 8° and is coated with a 980 / 1550nm anti-reflection film system; The optical aperture changes from 6um before sintering to 9um at the sintering point after sintering. This step is very critical. The clear aperture becomes 9um at the sintering point, which greatly reduces the difficulty of coupling; S...

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Abstract

The invention discloses a method for manufacturing a sintered and fused 980-1550nm optical isolator, which comprises the steps of material preparation, optical fiber sintering and fusion, optical fiber penetration, double-fiber coupling, isolator and collimator assembly, combination, fixation and packaging and the like, after optical fiber sintering and fusion, the optical fiber is cut off, and the clear aperture of a cut-off point is changed into 9 microns, so that the coupling difficulty is greatly reduced, the optical loss is small, and the cost is low. The on-line isolator is added, so that the light propagation direction is changed into one-way propagation, the anti-interference capability of the product is improved, the isolation degree of the product is improved, the use effect is good, and the use requirement is effectively met.

Description

technical field [0001] The invention belongs to the field of communication, and in particular relates to a manufacturing method of a sintered and fused 980-1550nm optical isolator with low coupling difficulty, low optical loss and good anti-interference performance. Background technique [0002] The 980nm pump source is widely used in the communication industry. During the transmission process, it is amplified by 1550um light before transmission, which can minimize the transmission loss. The 980nm light source input and amplification transmission use a complete 1060nm ordinary optical fiber with a clear aperture of 6um. The optical isolator of this transmission method can meet certain requirements, but there are also large defects. The optical fiber with a clear aperture of 6um The coupling is difficult, the optical loss is large, and the anti-interference effect is poor, which cannot effectively meet the requirements of use. If there is a new manufacturing process that can ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/12
CPCG02B6/12G02B2006/12157G02B2006/12166G02B2006/12197
Inventor 罗友泉张才生张灼广
Owner 厦门贝莱信息科技有限公司
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