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A multi-channel high-speed optical module structure and processing method

A high-speed, optical module technology, applied in the field of optical modules, can solve problems such as affecting the wiring of radio frequency lines, and achieve the effect of good radio frequency effect

Active Publication Date: 2019-07-26
WUHAN TELECOMM DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional placement of photodetectors becomes a problem (affecting the wiring of radio frequency lines)

Method used

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  • A multi-channel high-speed optical module structure and processing method
  • A multi-channel high-speed optical module structure and processing method
  • A multi-channel high-speed optical module structure and processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] Embodiment 1 of the present invention provides a multi-channel high-speed optical module structure, such as figure 1 As shown, at least one transmitting unit is included, wherein the transmitting unit includes a first laser 1, a second laser 2, a third laser 3, a fourth laser 4, a first multiplexer 11, a second multiplexer 12, a third The multiplexer 13, the first photodetector 21, the second photodetector 22, the third photodetector 23 and the fourth photodetector 24, specifically:

[0088] The first laser 1 and the second laser 2 are respectively connected to the first wave combiner 11 through the first waveguide 1-1 and the second waveguide 1-2; wherein, relative to the horizontal direction, the first wave combiner 11 is located below the first laser 1 and above the second multiplexer 12;

[0089] The third laser 3 and the fourth laser 4 are respectively connected to the second wave combiner 12 through the third waveguide 1-3 and the fourth waveguide 1-4; wherein, r...

Embodiment 2

[0108] After providing a multi-channel high-speed optical module structure as described in Embodiment 1, the embodiment of the present invention focuses on how to complete the manufacture of the PLC unit used in Embodiment 1, such as Figure 14 As shown, the preparation method includes:

[0109] In step 201, a waveguide base material is grown on the wafer, so that the thickness of the waveguide base material reaches the preset waveguide setting parameters; wherein, the waveguide base material includes a waveguide lower cladding layer.

[0110] In step 202, a photoresist is coated, and the first waveguide 1-1, the second waveguide 1-2, the fifth waveguide 2-1, the sixth waveguide 2-2, the light output waveguide 3-0, the first Graphics of a monitoring waveguide 3-1, a second monitoring waveguide 3-2 and a third monitoring waveguide 3-3; wherein, at the junction of the first waveguide 1-1, the second waveguide 1-2 and the fifth waveguide 2-1 Photocut the pattern of the first mul...

Embodiment 4

[0128] Corresponding to Embodiment 3, the embodiment of the present invention also provides a method for manufacturing a PLC in a multi-channel high-rate optical module, and the manufactured PLC is used in the structure of the multi-channel high-rate optical module described in Embodiment 3, such as Figure 18 As shown, the preparation method includes:

[0129] In step 301, a waveguide base material is grown on the wafer, so that the thickness of the waveguide base material reaches the preset parameters set for the first waveguide layer; wherein, the waveguide base material includes a waveguide lower cladding layer.

[0130] In step 302, a photoresist is applied, and patterns of the second monitoring waveguide 3-2 and the third monitoring waveguide 3-3 are photoetched; after each waveguide pattern is cleaned with a developing solution, the wafer is etched with an etching solution Figure out the pattern for making the second monitoring waveguide 3-2 and the third monitoring wav...

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Abstract

A multi-channel high-speed optical module structure and a machining method. A PLC comprises that a waveguide (1-1) and a waveguide (1-2) are connected to a multiplexer (11); a waveguide (1-3) and a waveguide (1-4) are connected to a multiplexer (12); the multiplexer (11) and the multiplexer (12) are respectively connected to a multiplexer (13) by means of a waveguide (2-1) and a waveguide (2-2); a monitoring waveguide (3-1) is further introduced on the waveguide (1-1); a monitoring waveguide (3-2) is further introduced on the waveguide (2-1); a monitoring waveguide (3-3) is further introduced on the waveguide (2-2); and a monitoring waveguide (3-4) is further introduced on the waveguide (1-4). The waveguide layout makes it possible for optical detectors (21, 22, 23, and 24) and lasers (1, 2, 3, and 4) to be provided on either side of the PLC in an opposite mode, thereby overcoming the existing inherent thought of fixing optical detectors on the backs of light exit surfaces of lasers, and improving the radio frequency effect at a speed higher than 25G.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of optical modules, in particular to a multi-channel high-speed optical module structure and a processing method. [0003] 【Background technique】 [0004] In recent years, with the rapid development of data communications, especially data centers, the market requires a large number of high-performance, low-cost optical modules. High performance mainly refers to the high speed and miniaturization of optical modules; low cost includes material cost, simple process, manufacturability, etc. At present, commercial 4-channel 100G (25Gx4) modules have just gradually entered mass production, and market demand and standardization are pointing to higher-speed optical modules such as 200G and 400G. On the other hand, there are stricter requirements on the miniaturization of modules in the market. For example, the module packaging standard of QSFP-DD is to increase the rate by 2 times (200Gbps) or even 4 times...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/42G02B6/293G02B6/13G02B6/12
CPCG02B6/12G02B6/13G02B6/29304G02B6/4204G02B6/4246G02B2006/12038
Inventor 陈奔封建胜周天红高万超张玓周日凯付永安孙莉萍张军余向红
Owner WUHAN TELECOMM DEVICES
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