Multi-channel receiving end assembly

Abstract

The invention discloses a multi-channel receiving end assembly, and belongs to the field of optical devices, the number of input optical fibers is 4N, a lens array, a wavelength division multiplexer, a spherical lens and a capillary tube are fixed on a substrate, and the input optical fibers, the lens array, the wavelength division multiplexer, the spherical lens, the capillary tube and an output optical fiber are sequentially arranged along the direction of an optical path, the number of the lens arrays, the number of the wavelength division multiplexers, the number of the spherical lenses, the number of the capillary tubes and the number of the output optical fibers are all N, the number of the substrate is one, the N spherical lenses, the N capillary tubes, the N lens arrays and the N wavelength division multiplexers are all arranged on the substrate in a column, and every four input optical fibers generate four paths of parallel interval light to be incident to the lens arrays. Four paths of interval light emitted by the lens array are combined into one path of light through the wave combining effect of the wavelength division multiplexer, the combined light is converged through the spherical lens and then enters the output optical fiber through the capillary tube to be output, and the multi-channel receiving end assembly converts 4N light path input into N light path output.

Description

Technical Field

[0001] The present invention relates to the field of optical devices, in particular to a multi-channel receiving end component and a combiner / demultiplexer component comprising the multi-channel receiving end component. Background Art

[0002] In existing receiver components, light of a specified wavelength is incident on a collimator through an optical fiber. After passing through the collimator, the collimated beam is split into four beams by a wavelength division multiplexer. From the output end of the wavelength division multiplexer, it enters the silicon array lens. The prism deflects and forms four optical paths at the focal point. Thus, after being emitted from the laser, light passes through a series of components including a wavelength division multiplexer to form four beams.

[0003] However, this structure can only be used for the receiving end of a 4-channel optical module. When the number of optical channels exceeds 4, this solution cannot be used. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide a multi-channel receiving end assembly that can be used when the number of optical channels is greater than 4.

[0005] One of the purposes of the present invention is achieved by the following technical solution:

[0006] A multi-channel receiving end component includes an input optical fiber, the number of the input optical fibers is 4N, N is an integer and N is greater than 1, the multi-channel receiving end component also includes a substrate, a lens array, a wavelength division multiplexer, a spherical lens, a capillary tube and an output optical fiber, the lens array, the wavelength division multiplexer, the spherical lens and the capillary tube are fixed to the substrate, along the direction of the optical path, the input optical fiber, the lens array, the wavelength division multiplexer, the spherical lens, the capillary tube and the output optical fiber are arranged in sequence, the lens array, the wavelength division multiplexer, the spherical lens, the capillary tube and the output optical fiber are arranged in sequence, The number of lenses, capillaries, and output optical fibers is N, the number of substrates is one, and the N spherical lenses, capillaries, and output optical fibers are arranged in a row on the substrate. Every four input optical fibers generate four parallel paths of spaced light that are incident on the lens array. The four paths of spaced light emitted by the lens array are synthesized into one path of light through the wavelength division multiplexer. The synthesized light is converged by the spherical lens and then passes through the capillary tube into the output optical fiber for output. The multi-channel receiving end component converts 4N optical path inputs into N optical path outputs.

[0007] Furthermore, the multi-channel receiving end assembly further includes a connector, and the 4N input optical fibers are installed on the connector.

[0008] Furthermore, the capillary is a square capillary.

[0009] Furthermore, the spherical lens is a C-lens lens.

[0010] Furthermore, the substrate is made of glass.

[0011] Furthermore, the lens array, the wavelength division multiplexer, the spherical lens and the capillary are UV-cured on the substrate using epoxy resin glue.

[0012] Furthermore, the multi-channel receiving end assembly further includes a receiving terminal, the number of the receiving terminals is N, and each of the output optical fibers is connected to a receiving terminal.

[0013] Furthermore, the output optical fiber is fixedly connected to the receiving terminal by glue.

[0014] Furthermore, the number of the input optical fibers is 16, and the number of the output optical fibers is 4.

[0015] Furthermore, adjacent light paths incident on the same lens array are spaced 0.5 mm apart.

[0016] Compared with the prior art, the multi-channel receiving end assembly of the present invention has 4N input optical fibers, where N is an integer and greater than 1. The multi-channel receiving end assembly further includes a substrate, a lens array, a wavelength division multiplexer, a spherical lens, a capillary tube, and an output optical fiber. The lens array, wavelength division multiplexer, spherical lens, and capillary tube are fixed to the substrate. Along the optical path, the input optical fiber, lens array, wavelength division multiplexer, spherical lens, capillary tube, and output optical fiber are arranged in sequence. The number of lens arrays, wavelength division multiplexers, spherical lenses, capillaries, and output optical fibers is N. The number of substrates is one. The N spherical lenses, capillaries, and output optical fibers are all arranged in a row on the substrate. Every four input optical fibers generate four parallel spaced light beams that are incident on the lens array. The four spaced light beams emitted by the lens array are combined into one light beam through the wavelength division multiplexer. The combined light is converged by the spherical lens and then passes through the capillary tube into the output optical fiber for output. The multi-channel receiving end assembly converts 4N optical path inputs into N optical path outputs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A top view of a multi-channel receiving end assembly of the present invention;

[0018] Figure 2 for Figure 1 A main view of a multi-channel receiver assembly;

[0019] Figure 3 for Figure 1 Optical path diagram of the multi-channel receiving end component.

[0020] In the figure: 101, receiving terminal; 107, output optical fiber; 102, capillary; 103, spherical lens; 104, wavelength division multiplexer; 105, lens array; 106, substrate; 108, input optical fiber; 109, connector; 110, fixing part. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used in this specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Figures 1 to 3 The multi-channel receiving end component of the present invention is used to convert 4N input channels into N output channels.

[0025] The multi-channel receiving end assembly includes a receiving terminal 101 , an output optical fiber 107 , a capillary 102 , a spherical lens 103 , a wavelength division multiplexer 104 , a lens array 105 , a substrate 106 , an input optical fiber 108 , a connector 109 and a fixing member 110 .

[0026] The number of receiving terminals 101, output optical fibers 107, capillaries 102, spherical lenses 103, wavelength division multiplexers 104, lens arrays 105 and fixing parts 110 is N, where N is an integer greater than 1. The number of input optical fibers 108 is 4N, and the number of connectors 109 and substrates 106 is one.

[0027] Along the optical path, the connector 109 is used to install 4N input optical fibers 108 so that the ends of the 4N input optical fibers 108 are bundled together.

[0028] 4N input optical fibers 108 are used to input 4N paths of light. The ends of the 4N input optical fibers 108, away from the connector 109, are secured to the end of the substrate 106 via fixtures 110. During the process of securing the 4N input optical fibers 108 to the end of the substrate 106, every four input optical fibers 108 are secured by one fixture 110. For the four input optical fibers 108 secured by the same fixture 110, the optical paths output by two adjacent input optical fibers 108 are separated by 0.5 mm.

[0029] The substrate 106 is made of glass and is used to support the capillary 102, the spherical lens 103, the wavelength division multiplexer 104 and the lens array 105. The capillary 102, the spherical lens 103, the wavelength division multiplexer 104 and the lens array 105 are attached to the substrate 106 using epoxy resin glue that is UV-cured.

[0030] Specifically, there is one substrate 106, and N capillaries 102, spherical lenses 103, wavelength division multiplexer 104, lens array 105, and fixture 110 are all fixed to the same substrate 106. The N capillaries 102, spherical lenses 103, wavelength division multiplexer 104, lens array 105, and fixture 110 are located on the same plane and arranged in five rows. Along the optical path, the fixture 110, lens array 105, wavelength division multiplexer 104, spherical lenses 103, and capillaries 102 are arranged in this order.

[0031] The lens array 105 is located between the fixing member 110 and the wavelength division multiplexer 104 .

[0032] The wavelength division multiplexer 104 can combine four optical paths into one optical path.

[0033] The spherical lens 103 is used to converge light. Specifically, the spherical lens 103 is a C-lens lens.

[0034] The capillary tube 102 is a square capillary tube.

[0035] One end of the output optical fiber 107 is connected to the capillary 102 , and the other end is connected to the receiving terminal 101 .

[0036] The number of receiving terminals 101 is the same as the number of output optical fibers 107 , which is N.

[0037] In this embodiment, the number of receiving terminals 101, output optical fibers 107, capillaries 102, spherical lenses 103, wavelength division multiplexers 104, lens arrays 105, and fixing members 110 is 4, the number of input optical fibers 108 is 16, and the number of connectors 109 and substrates 106 is one.

[0038] Every four input optical fibers 108 generate four parallel paths of spaced light that are incident on the lens array 105. The four paths of spaced light emitted by the lens array 105 are combined into one path of light through the wavelength division multiplexer 104. The combined light is converged by the spherical lens 103 and then passes through the capillary 102 into the output optical fiber 107 for output. The multi-channel receiving end component converts 4N optical path inputs into N optical path outputs.

[0039] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patented invention. It should be noted that those skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention. These variations and improvements are equivalent modifications and improvements to the above embodiments based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. A multi-channel receiving end assembly, comprising input optical fibers, wherein the number of the input optical fibers is 4N, where N is an integer and N is greater than 1, characterized in that: The multi-channel receiving end component also includes a substrate, a lens array, a wavelength division multiplexer, a spherical lens, a capillary and an output optical fiber. The lens array, the wavelength division multiplexer, the spherical lens and the capillary are fixed to the substrate. Along the optical path direction, the input optical fiber, the lens array, the wavelength division multiplexer, the spherical lens, the capillary and the output optical fiber are arranged in sequence. The number of the lens array, the wavelength division multiplexer, the spherical lens, the capillary and the output optical fiber is N. The number of the substrate is one. The N spherical lenses, the capillaries, the lens array and the wavelength division multiplexer are arranged in a row on the substrate. Every four input optical fibers generate four parallel interval lights that are incident on the lens array. The four interval lights emitted by the lens array are synthesized into one light through the wavelength division multiplexer. The synthesized light is converged by the spherical lens and then enters the output optical fiber through the capillary for output. The multi-channel receiving end component converts 4N optical path input into N optical path output.

2. The multi-channel receiving end assembly according to claim 1, characterized in that: The multi-channel receiving end assembly further comprises a connector, and the 4N input optical fibers are mounted on the connector.

3. The multi-channel receiving end assembly according to claim 1, characterized in that: The capillary is a square capillary.

4. The multi-channel receiving end assembly according to claim 1, characterized in that: The spherical lens is a C-lens lens.

5. The multi-channel receiving end assembly according to claim 1, characterized in that: The substrate is made of glass.

6. The multi-channel receiving end assembly according to claim 1, characterized in that: The lens array, the wavelength division multiplexer, the spherical lens and the capillary are UV-cured on the substrate using epoxy resin glue.

7. The multi-channel receiving end assembly according to claim 1, characterized in that: The multi-channel receiving end assembly further includes receiving terminals, the number of the receiving terminals is N, and each of the output optical fibers is connected to a receiving terminal.

8. The multi-channel receiving end assembly according to claim 7, characterized in that: The output optical fiber is fixedly connected to the receiving terminal by glue.

9. The multi-channel receiving end assembly according to claim 1, characterized in that: The number of the input optical fibers is 16, and the number of the output optical fibers is 4.

10. The multi-channel receiving end assembly according to claim 1, characterized in that: The interval between adjacent light paths incident on the same lens array is 0.5 mm.

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