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Polarization independent isolator and preparation method thereof

A technology of isolators and optical isolators, which is applied in the direction of instruments, light guides, optics, etc., can solve the problems of undisclosed assembly methods and methods of optical isolators, and achieve the effects of quick operation, stable assembly, and high production efficiency

Pending Publication Date: 2022-03-11
江西天孚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] It can be seen from the technical solutions of the polarization-independent optical isolator disclosed above and its manufacturing method that none of them discloses the assembly method and method of the optical isolator

Method used

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  • Polarization independent isolator and preparation method thereof
  • Polarization independent isolator and preparation method thereof
  • Polarization independent isolator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The parts not described in this embodiment are the same as those described in the above-mentioned specific implementation manner.

[0040] Such as Figure 1-6 As shown, the present embodiment is to prepare a unipolar optical isolator; a polarization-independent isolator disclosed by the present invention is utilized, comprising an optical isolator chip unit, a U-shaped opening magnetic block 4, and a U-shaped opening magnetic block 4 is arranged in the middle There is an opening groove 401, and the optical isolator chip unit includes a grooved glass plate 1, a right birefringent crystal 2, a left birefringent crystal 201, a Faraday rotator 3, and the right birefringent crystal 2 and the left birefringent crystal 201 are respectively arranged on the belt At both ends of the grooved glass sheet 1, the Faraday rotator 3 is arranged on one side of the grooved glass sheet 1 between the right birefringent crystal 2 and the left birefringent crystal 201, forming an optical iso...

Embodiment 2

[0050] Such as Figure 7 As shown, the present embodiment is to prepare a bipolar isolator; all U-shaped opening magnetic blocks are replaced with bipolar U-shaped opening magnetic blocks 407 . The steps of other assembly methods are the same as in Example 1 and the above-mentioned implementation. In this example, the drying time is controlled, that is, the ultraviolet mercury lamp is irradiated for 65 seconds. The ultraviolet mercury lamp makes the glue pre-cured stably, and its energy intensity is controlled to be 100mw / cm2 ;

[0051] Afterwards, it is uniformly moved to an oven for thermal baking at 110 degrees, and kept at a constant temperature for 2 hours to make it completely cured, which is a polarization-independent bipolar isolator product.

Embodiment 3

[0053] This embodiment discloses that the opening end of the U-shaped opening magnetic block 4 is provided with a glue filling groove A405 and a glue filling groove B406; as shown in FIG. The bottom glue groove A402 and the bottom glue groove B 403 are respectively arranged on the side walls of the two sides, and the corresponding two sides of the opening end of the opening groove 401 are respectively provided with a glue replenishing groove A405 and a glue replenishing groove. Slot B406;

[0054] Such as Figure 1-6 As shown, the present embodiment is to prepare a unipolar optical isolator; a polarization-independent isolator disclosed by the present invention is utilized, comprising an optical isolator chip unit, a U-shaped opening magnetic block 4, and a U-shaped opening magnetic block 4 is arranged in the middle There is an opening groove 401, and the optical isolator chip unit includes a grooved glass plate 1, a right birefringent crystal 2, a left birefringent crystal 2...

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Abstract

The polarization-independent isolator comprises an optical isolator chip unit and a U-shaped open magnetic block, an open groove is formed in the middle of the U-shaped open magnetic block, and the optical isolator chip unit comprises a glass sheet with a groove, a right birefringent crystal, a left birefringent crystal and a Faraday rotator. The right birefringent crystal and the left birefringent crystal are arranged at the two ends of the glass sheet with the groove respectively, and by means of the method, the polarization-independent isolator is low in machining cost, shorter in consumed time, higher in efficiency, more accurate in positioning, more accurate in angle and higher in reliability; and the assembling method is simple, high in practicability and low in cost.

Description

Technical field: [0001] The invention relates to the technical field of communication, mainly to the technical field of photoelectric communication, in particular to a polarization-independent isolator and a preparation method thereof. Background technique: [0002] An optical isolator is an optical passive device that allows light to pass through in one direction and blocks the passage of light in the opposite direction; it is an optical passive device that has a small loss for forward light and a large attenuation for reverse light. It can suppress the adverse effects of unwanted reflected light waves on the light source in the optical communication system and ensure the stable operation of the system. It is a commonly used and indispensable device in large-capacity optical communication systems. Optical isolators can be divided into polarization-dependent type and polarization-independent type according to their dependence on the polarization state of the transmitted ligh...

Claims

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Application Information

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IPC IPC(8): G02F1/09G02B6/27
CPCG02F1/093G02B6/2746G02B6/2793G02F2203/06
Inventor 邹支农胡忠星刘小叶
Owner 江西天孚科技有限公司