CN112462472B - Coupling method of PLC optical splitter - Google Patents
Coupling method of PLC optical splitter Download PDFInfo
- Publication number
- CN112462472B CN112462472B CN202011338429.3A CN202011338429A CN112462472B CN 112462472 B CN112462472 B CN 112462472B CN 202011338429 A CN202011338429 A CN 202011338429A CN 112462472 B CN112462472 B CN 112462472B
- Authority
- CN
- China
- Prior art keywords
- coupling
- optical splitter
- optical
- input
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/30—Optical coupling means for use between fibre and thin-film device
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention relates to a coupling method of a PLC optical splitter, and belongs to the technical field of integrated optics. The method comprises the steps of coupling and bonding an optical splitter chip containing 1 XM with an FA of an M channel to form a1 XM input assembly, coupling and bonding the optical splitter chip containing 1 XN with the FA of an N channel to form a1 XN output assembly, and mutually aligning, coupling and bonding the 1 XM input assembly and the 1 XN output assembly to form the optical splitter of the M XN. The coupling method of the PLC optical splitter is rapid in operation and good in consistency; the coupling point positions of the input end component and the output end component can be finely adjusted in the coupling process, so that the process tolerance is increased, the device yield and the optical performance are effectively improved, and the cost is reduced; the device type can be switched by combining the input end component and the output end component, the customization degree is high, the research and development time is short, and the device type switching device has wide application prospect.
Description
Technical Field
The invention relates to a coupling method of a PLC optical splitter, and belongs to the technical field of integrated optics.
Background
With the rapid development of optical networks, the structure of optical networks has also been variously developed. The need for various passive optical branching structures has also been proposed.
The optical splitters with newly increased requirements of the modern optical network are various in types, and particularly the optical splitters with multiple inputs and multiple outputs have irreplaceable functions in some special use scenes. Design tolerance and process debugging are required to be considered in integrated planar waveguide type optical divider chip design, along with the increase of branches, chip design difficulty is increased, limited times of design and wafer flow result are difficult to ensure to meet product requirements, and chip research and development cost and research and development time are increased in geometric progression. On the other hand, the conventional optical splitter coupling method is adopted to couple the optical splitters with multiple inputs and multiple outputs, the coupling mode is complex, and the production efficiency is low.
In view of the above-mentioned drawbacks, the present inventors have actively studied and innovated to create a coupling method of a PLC optical splitter, so as to make the PLC optical splitter have more industrial utility value.
Disclosure of Invention
In order to solve the technical problems, the invention aims to overcome the defects of the prior art, and provides a technical scheme with large coupling tolerance, relatively low research and development cost and short research and development time.
The invention relates to a coupling method of a PLC optical divider, which comprises the steps of firstly coupling and bonding an optical divider chip containing 1 XM with an FA of an M channel to form a1 XM input assembly, then coupling and bonding the optical divider chip containing 1 XN with the FA of an N channel to form a1 XN output assembly, and then mutually aligning, coupling and bonding the 1 XM input assembly and the 1 XN output assembly to form the MXN optical divider.
In the coupling method of the PLC optical splitter, the width of the optical waveguide at the 1×m input end of the 1×m optical splitter chip is less than or equal to the width of the optical waveguide at the 1×n input end of the 1×n optical splitter chip, and is greater than or equal to the sum of the widths of the M optical waveguides at the output end.
In the coupling method of the PLC optical splitter, the width of the optical waveguide at the 1 XN input end of the 1 XN optical splitter chip is more than or equal to the sum of the widths of the N optical waveguides at the output end and less than or equal to 2 times of the sum of the widths of the N optical waveguides at the output end.
Further, in the coupling method of the PLC optical splitter, the steps of aligning, coupling and bonding the 1×m input component and the 1×n output component with each other are as follows:
s1, firstly accessing a No. 1 port of an M end, adjusting a six-dimensional adjusting knob of a coupling table, observing the insertion loss of an N channel of an output end, and ensuring that the insertion loss is in a qualified range;
s2, replacing an M number port connected to the M end, adjusting a six-dimensional adjusting knob of the coupling table, observing the insertion loss of an N channel at the output end, ensuring that the insertion loss is in a qualified range, and ensuring that the insertion loss of a device is still in the qualified range when the M number port is connected to the M end.
By means of the scheme, the invention has at least the following advantages:
1. the coupling method of the PLC optical divider is rapid in operation and good in consistency;
2. the coupling method of the PLC optical splitter can finely adjust the coupling point positions of the input end component and the output end component in the coupling process, thereby increasing the process tolerance, effectively improving the device yield and the optical performance and reducing the cost;
3. the coupling method of the PLC optical splitter can switch the device types by combining the input end component and the output end component, and has high customization degree and short research and development time.
The foregoing description is only an overview of the present invention, and is intended to provide a better understanding of the present invention, as it is embodied in the following description, with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate a certain embodiment of the present invention and therefore should not be considered as limiting the scope, and that other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an assembled schematic diagram of an MXN optical splitter of the present invention;
FIG. 2 is a schematic coupling diagram of a1 XM optical splitter of the present invention;
FIG. 3 is a schematic coupling diagram of a1 XN optical splitter of the present invention;
FIG. 4 is a schematic coupling diagram of an MXN optical splitter of the present invention;
wherein, in the drawing,
1. a1×m input component; 2. a1 XN output component;
11. a1×m optical splitter chip; 12. FA for M channel;
21. a1×n optical splitter chip; 22. FA for N-channel;
111. 1 XM input end optical waveguide; 112. an output end M optical waveguides; 1121. a port 1 of the M end;
211. 1 XN input end optical waveguide; 212. and N optical waveguides at the output end.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, a coupling method of a PLC optical splitter includes coupling and bonding an optical splitter chip 11 including 1×m with an FA12 of M channels to form a1×m input module 1, coupling and bonding an optical splitter chip 21 including 1×n with an FA22 of N channels to form a1×n output module 2, and coupling and bonding the 1×m input module 1 and the 1×n output module 2 with each other to form an m×n optical splitter.
In the coupling method of the PLC optical splitter, the width of the 1×m input end optical waveguide 111 of the 1×m optical splitter chip 11 is equal to or smaller than the width of the 1×n input end optical waveguide 211 of the 1×n optical splitter chip 21, and equal to or larger than the sum of the widths of the M optical waveguides 112 at the output end.
In the coupling method of the PLC optical splitter, the width of the 1 xn input optical waveguide 211 of the 1 xn optical splitter chip 21 is equal to or greater than the sum of the widths of the N optical waveguides 212 at the output end, and equal to or less than 2 times the sum of the widths of the N optical waveguides 212 at the output end.
In the coupling method of the PLC optical splitter, in the process of mutual collimation, coupling and bonding of a1 XM input assembly 1 and a1 XN output assembly 2, a No. 1 port 1121 of an M end is firstly connected, a six-dimensional adjusting knob of a coupling table is adjusted, the insertion loss of an N channel of the output end is observed, and the insertion loss is ensured to be in a qualified range; and then replacing the M number port connected with the M end, adjusting a six-dimensional adjusting knob of the coupling platform, observing the insertion loss of the N channel at the output end, ensuring that the insertion loss is in a qualified range, and ensuring that the insertion loss of a device is still in the qualified range when the M number port 1121 connected with the M end is connected.
Example 1
A coupling method of PLC optical splitter comprises the steps of coupling and bonding an optical splitter chip containing 1×2 and a FA of 2 channels to form a1×2 input assembly, coupling and bonding an optical splitter chip containing 1×8 and a FA of 8 channels to form a1×8 output assembly, and coupling and bonding the 1×2 input assembly and the 1×8 output assembly mutually in a collimation mode to form a2×8 optical splitter.
Wherein, the optical waveguide width of the input end of the 1X 2 optical splitter chip is 100 μm, and the widths of the 2 optical waveguides of the output end are 50 μm respectively;
the input end optical waveguide width of the 1X 8 optical splitter chip is 400 mu m, and the output end 8 optical waveguides widths are 50 mu m respectively;
in the process of mutual collimation, coupling and bonding of a 1X 2 input component and a 1X 8 output component of the PLC 2X 8 optical splitter, a No. 1 port of a2 end is firstly connected, a six-dimensional adjusting knob of a coupling table is adjusted, insertion loss of an 8-channel of the output end is observed, and the insertion loss is ensured to be in a qualified range; and then replacing the No. 2 port connected with the 2 end, adjusting a six-dimensional adjusting knob of the coupling table, observing the insertion loss of the 8 channel at the output end, ensuring that the insertion loss is in a qualified range, and ensuring that the insertion loss of a device is still in the qualified range when the No. 1 port connected with the 2 end is connected.
Example 2
A coupling method of PLC optical splitter comprises the steps of coupling and bonding an optical splitter chip containing 1×5 and a FA with 5 channels to form a1×5 input assembly, coupling and bonding an optical splitter chip containing 1×32 and a FA with 32 channels to form a1×32 output assembly, and coupling and bonding the 1×5 input assembly and the 1×32 output assembly to form a 5×32 optical splitter.
Wherein, the optical waveguide width of the input end of the 1X 5 optical splitter chip is 100 μm, and the widths of 5 optical waveguides of the output end are 18 μm respectively;
the input end optical waveguide width of the 1X 32 optical splitter chip is 640 mu m, and the output end 32 optical waveguides widths are 10 mu m respectively;
in the process of mutual collimation, coupling and bonding of a 1X 5 input component and a 1X 32 output component of the PLC 5X 32 optical splitter, a No. 1 port of a 5 end is firstly accessed, a six-dimensional adjusting knob of a coupling table is adjusted, insertion loss of a 32 channel of the output end is observed, and the insertion loss is ensured to be in a qualified range; and then replacing a No. 5 port of the access 5 end, adjusting a six-dimensional adjusting knob of the coupling table, observing the insertion loss of a 32 channel of the output end, ensuring that the insertion loss is in a qualified range, and ensuring that the insertion loss of a device is still in the qualified range when the No. 1 port of the access 5 end is accessed.
Example 3
A coupling method of PLC optical splitter comprises the steps of coupling and bonding an optical splitter chip containing 1×16 with a 16-channel FA to form a1×16 input assembly, coupling and bonding an optical splitter chip containing 1×12 with a 12-channel FA to form a1×12 output assembly, and coupling and bonding the 1×16 input assembly and the 1×12 output assembly to form a 16×12 optical splitter.
The optical splitter chip of 1X 16 has input end with optical waveguide width of 1600 μm and output end with 16 optical waveguides width of 80 μm;
the input end optical waveguide width of the 1X 12 optical splitter chip is 1600 mu m, the output end optical waveguide width is 130 mu m, and the width of 12 optical waveguides is 130 mu m;
in the process of mutual collimation, coupling and bonding of a 1X 16 input component and a 1X 12 output component of the PLC 16X 12 optical splitter, a No. 1 port of a 16 end is firstly accessed, a six-dimensional adjusting knob of a coupling table is adjusted, insertion loss of a12 channel of the output end is observed, and the insertion loss is ensured to be in a qualified range; and then replacing the No. 16 port connected with the No. 16 end, adjusting a six-dimensional adjusting knob of the coupling table, observing the insertion loss of the channel of the output end 12, ensuring that the insertion loss is within a qualified range, and ensuring that the insertion loss of a device is still within the qualified range when the No. 1 port connected with the No. 16 end is connected.
The invention has the following advantages:
1. the coupling method of the PLC optical divider is rapid in operation and good in consistency;
2. the coupling method of the PLC optical splitter can finely adjust the coupling point positions of the input end component and the output end component in the coupling process, thereby increasing the process tolerance, effectively improving the device yield and the optical performance and reducing the cost;
3. the coupling method of the PLC optical splitter can switch the device types by combining the input end component and the output end component, and has high customization degree and short research and development time.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims (2)
1. A coupling method of a PLC optical divider is characterized in that an optical divider chip (11) containing 1 XM is coupled and bonded with an FA (12) of an M channel to form a1 XM input component (1), an optical divider chip (21) containing 1 XN is coupled and bonded with an FA (22) of an N channel to form a1 XN output component (2), and then the 1 XM input component (1) and the 1 XN output component (2) are mutually aligned, coupled and bonded to form the MXN optical divider;
the width of a1 xM input end optical waveguide (111) of a1 xM optical splitter chip (11) is less than or equal to the width of a1 xN input end optical waveguide (211) of a1 xN optical splitter chip (21), and is greater than or equal to the sum of the widths of M optical waveguides (112) at an output end;
the width of a1 XN input end optical waveguide (211) of a1 XN optical splitter chip (21) is equal to or greater than the sum of the widths of N optical waveguides (212) at the output end and equal to or less than 2 times the sum of the widths of N optical waveguides (212) at the output end.
2. The coupling method of the PLC optical splitter according to claim 1, wherein in the coupling method of the PLC optical splitter, the steps of aligning, coupling and bonding the 1×m input component (1) and the 1×n output component (2) with each other are as follows:
s1, firstly accessing a No. 1 port (1121) of an M end, adjusting a six-dimensional adjusting knob of a coupling table, observing the insertion loss of an N channel of an output end, and ensuring that the insertion loss is in a qualified range;
s2, replacing an M number port connected to the M end, adjusting a six-dimensional adjusting knob of the coupling table, observing the insertion loss of an N channel at the output end, ensuring that the insertion loss is within a qualified range, and ensuring that the insertion loss of a device is still within the qualified range when the M number port (1121) connected to the M end is accessed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338429.3A CN112462472B (en) | 2020-11-25 | 2020-11-25 | Coupling method of PLC optical splitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011338429.3A CN112462472B (en) | 2020-11-25 | 2020-11-25 | Coupling method of PLC optical splitter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112462472A CN112462472A (en) | 2021-03-09 |
| CN112462472B true CN112462472B (en) | 2023-06-27 |
Family
ID=74799916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011338429.3A Active CN112462472B (en) | 2020-11-25 | 2020-11-25 | Coupling method of PLC optical splitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112462472B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH650866A5 (en) * | 1979-04-18 | 1985-08-15 | Int Standard Electric Corp | Method for producing a star coupler arrangement for connecting two optical-fibre cables |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927081Y (en) * | 2006-07-24 | 2007-07-25 | 深圳飞通光电子技术有限公司 | Planar optical waveguide power beam splitter |
| CN107479130A (en) * | 2017-08-28 | 2017-12-15 | 浙江富春江光电科技有限公司 | A kind of fiber waveguide core body wafer and fiber waveguide core body and preparation method thereof |
| CN213210531U (en) * | 2020-10-26 | 2021-05-14 | 常州光芯集成光学有限公司 | PLC optical splitter |
-
2020
- 2020-11-25 CN CN202011338429.3A patent/CN112462472B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH650866A5 (en) * | 1979-04-18 | 1985-08-15 | Int Standard Electric Corp | Method for producing a star coupler arrangement for connecting two optical-fibre cables |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112462472A (en) | 2021-03-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11644619B2 (en) | Optical splitter chip, optical splitter component, optical splitter apparatus, and optical fiber box | |
| CN111897173A (en) | Low-loss low-random phase error 2 x 2 optical switch and N x N optical switch array | |
| CN103345023B (en) | Four-port optical route based on Mach-Zehnder optical switches | |
| CN103513333A (en) | Blended crossing device for silicon-based nanowire | |
| CN112462472B (en) | Coupling method of PLC optical splitter | |
| CN204067545U (en) | A kind of six splitters of Ka frequency range | |
| CN103336324B (en) | A kind of interference type comb filter | |
| CN201000498Y (en) | T-tree shaped structure optical power shunt | |
| CN100449342C (en) | Compact 1XN light power shunt | |
| CN113552668A (en) | Silicon optical chip end face coupling structure resistant to high input optical power | |
| Suzuki et al. | Ultralow-crosstalk and broadband multi-port optical switch using SiN/Si double-layer platform | |
| CN114488409B (en) | Reconfigurable optical filter chip based on adjustable coupler cascade coupling resonance optical waveguide | |
| CN213210531U (en) | PLC optical splitter | |
| CN206020718U (en) | Four port hybrid type of low-loss, two wave-length division is multiplexed optical passive component | |
| CN114690313A (en) | Based on thick Si3N4Low insertion loss, large bandwidth compact multimode interference coupler of material | |
| CN111913330A (en) | High extinction ratio light time delay regulation and control structure and device | |
| US20220120965A1 (en) | Interposer Circuit | |
| CN103837934A (en) | Optical-fiber circulator | |
| JP2012252363A (en) | Waveguide type optical interferometer circuit | |
| CN206758617U (en) | 6~18GHz waveguide type filters | |
| CN102590942B (en) | Light path structure for integrated optical device | |
| CN2556660Y (en) | Low loss branch coupler | |
| CN220323594U (en) | Integrated optical chip and gyroscope system | |
| CN113851808A (en) | Waveguide power divider/synthesizer | |
| CN1811504A (en) | Polymer thermal-optical type optical waveguide switch based on multimode interference coupler structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |