WO2019201378A1 - Integriert-optisches funktionselement - Google Patents
Integriert-optisches funktionselement Download PDFInfo
- Publication number
- WO2019201378A1 WO2019201378A1 PCT/DE2019/100277 DE2019100277W WO2019201378A1 WO 2019201378 A1 WO2019201378 A1 WO 2019201378A1 DE 2019100277 W DE2019100277 W DE 2019100277W WO 2019201378 A1 WO2019201378 A1 WO 2019201378A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refractive index
- substrate
- functional element
- optical functional
- integrated
- 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.)
- Ceased
Links
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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1221—Basic optical elements, e.g. light-guiding paths made from organic materials
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B2006/12133—Functions
- G02B2006/12159—Interferometer
Definitions
- the invention relates to an integrated-optical functional element according to claims 1 to 7 and an optical integrated circuit with such an integrated-optical functional element according to claim 8.
- Integrated optical functional elements for example in the form of
- planar optical waveguides can be realized with the help of polymer materials.
- the corresponding polymer waveguides comprise a so-called undercladding layer, which is arranged on a silicon substrate, and a so-called core layer, which is arranged on or above the undercladding layer.
- the waveguide structure within the core layer is typically formed by photolithography, wherein in the case of using a
- phase-sensitive waveguides In the case of phase-sensitive waveguides, the high coefficients of thermal expansion and large thermo-optical coefficients which are common in polymer materials lead to intolerable phase shifts, which are caused, for example, by complex active
- Temperature control devices must be met, so that corresponding integrated-optical functional elements are complex and expensive.
- a coupler circuit for optical waveguides which should be substantially unaffected by a change in ambient temperature. This is achieved by combining the following materials, material parameters and geometries: a substrate from the group quartz, silicon or polyamide resin; optical waveguides made of a polymer having a specific refractive index, the waveguides having a rectangular cross section with a side length of 6 to 8 ⁇ m; upper and lower cladding layers of another polymeric material having a specific refractive index; specific Lengths for the parallel sections of the two couplers, specific gaps of the parallel waveguides in the two couplers; and specific optical path difference of the two optical waveguides.
- US 2002/0150368 A1 describes a polymer waveguide with only an insignificant change in its optical properties due to temperature changes.
- an undercladding layer of a silicone compound is disposed on a silicon substrate, followed by a polymeric core layer of a silane compound and a silicone compound.
- Side-adjacent to the core layer, side cladding layers are each made of the same material as the core layer but with a different refractive index, and an overcladding or uppercladding layer is arranged above the core layer and the sidecladding layers which consists of the same polymer material as the undercladding layer.
- Uppercladding layer is the topmost layer which absorbs ultraviolet radiation.
- a polymer layer having a first refractive index n1 is arranged on a substrate, wherein in the polymer layer at least one polymeric optical waveguide or an optical waveguide of a polymeric material having a second refractive index n2 is embedded such that the polymeric optical waveguide is in direct or indirect contact with the substrate.
- direct contact no further layer is arranged between the substrate and the polymer layer, while in the case of indirect contact between the substrate and the polymer layer at least one further layer is arranged.
- the second refractive index n2 is greater than the first refractive index n1
- the material of the substrate has a thermal in a temperature range of -10 ° C to 40 ° C.
- an integrated-optical functional element can be realized with a polymeric material as an optical function carrier, in which only an extremely low or negligible influence of temperature changes whose optical properties result.
- the material for the substrate are particularly inorganic
- Glass ceramics ZERODUR from Schott AG or ULE 7972 or ULE 7973 from Corning Inc. are suitable for this purpose.
- the material of the substrate has a third refractive index n3, which is less than or equal to the first (n) refractive index n1 of the polymer layer (ie n3 ⁇ n1) and smaller than the second refractive index n2 of the polymeric Fiber optic cable is (ie n3 ⁇ n2).
- n3 the third refractive index
- the material of the substrate has a third refractive index n3, which is less than or equal to the first (n) refractive index n1 of the polymer layer (ie n3 ⁇ n1) and smaller than the second refractive index n2 of the polymeric Fiber optic cable is (ie n3 ⁇ n2).
- an intermediate layer of a polymeric material is disposed between the substrate and the polymer layer. This allows - with otherwise the same materials for the polymer layer and the polymeric optical waveguide - the use of different substrate materials with different thermal or optical properties.
- Material of the intermediate layer has a fourth refractive index n4 which is less than the first refractive index n1 (i.e., n4 ⁇ n1) and less than or equal to the second refractive index n2 (i.e., n4 ⁇ n2).
- the intermediate layer consists of the same material as the polymer layer, since then only two different polymers are used for the layers arranged on the substrate, resulting in a particularly simple construction or a particularly simple production.
- the second refractive index n2 deviates by a value of at least 0.001, and preferably by a value of at least 0.05 from the first refractive index n1.
- the distances between adjacent polymer optical waveguides of the integrated-optical functional element, in which an optical coupling is provided in particular have a greater tolerance.
- the invention also relates to an optical integrated circuit with an integrated-optical functional element according to one of the preceding claims, in particular in the form of an interferometer, preferably in the form of a double Michelson interferometer.
- Figure 1 embodiment of an integrated-optical functional element in a perspective view
- FIG. 2 Integrated optical functional element according to FIG. 1 in a sectional view
- Figure 3 Another embodiment of an integrated-optical
- Figure 4 Embodiment of an integrated-optical functional element with two polymeric optical waveguides in a perspective view
- Figure 5 embodiment of an integrated-optical functional element with two polymeric optical waveguides and an intermediate layer in
- FIG. 1 shows a first possible embodiment of a
- the sheet-like substrate 2 with a length of 8 mm, a width of 3 mm and a thickness of 1 mm in this case consists of the material ULE 7973 from Corning Inc. This substrate has a refractive index of approximately 1.479 with respect to a wavelength of 850 nm.
- Optical waveguide 4 which consists of the material EpoCore 5 of the company micro resist technology GmbH and has a refractive index n2 of about 1, 583 at the wavelength of 850 nm.
- the polymeric optical waveguide 4 in this case has a thickness of 6 pm, a width of 6 pm and extends over a length of 8 mm.
- the polymeric optical waveguide 4 is embedded in a polymer layer 3, which consists of the material EpoClad 10 from. Micro resist technology GmbH and has a refractive index n1 of 1, 570 at the wavelength of 850nm.
- the thickness of the polymer layer 3 is 16miti at its thickest point.
- Figure 2 shows the integrated-optical functional element according to Figure 1 in a sectional view, wherein the corresponding section perpendicular to the substrate 2, the polymer layer 3 and the polymeric
- Optical waveguides 4 is arranged.
- FIG. 3 shows a further possible embodiment of a
- an intermediate layer 5 with a thickness of 16 ⁇ m is arranged between the polymer optical waveguide 4 consisting of EpoCore 5 or between the polymer layer 3 consisting of EpoClad 10 and the substrate 2.
- the substrate here consists of ZERODUR from Schott AG with a refractive index of about 1.54 at a wavelength of 850 nm.
- Optical waveguide 4 which are spaced further apart in one area than in another area.
- the region in which the polymeric optical fibers are spaced closer together represents a coupling region where light waves from a polymer
- Fiber optic 4 can enter into the respective adjacent optical waveguide 4.
- an intermediate layer 5 made of a polymeric material is arranged here between the polymer optical waveguides 4 or the polymer layer 3 and the substrate 2 for the purpose of selective matching between the refractive index of
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020207000066U KR20200002707U (ko) | 2018-04-19 | 2019-03-25 | 집적 광 기능 소자 |
| JP2020600186U JP3236108U (ja) | 2018-04-19 | 2019-03-25 | 光機能集積素子 |
| CN201990000646.6U CN214122518U (zh) | 2018-04-19 | 2019-03-25 | 集成光学功能元件以及光学集成电路 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018109345.4A DE102018109345A1 (de) | 2018-04-19 | 2018-04-19 | Integriert-optisches Funktionselement |
| DE102018109345.4 | 2018-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2019201378A1 true WO2019201378A1 (de) | 2019-10-24 |
Family
ID=66476338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2019/100277 Ceased WO2019201378A1 (de) | 2018-04-19 | 2019-03-25 | Integriert-optisches funktionselement |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3236108U (de) |
| KR (1) | KR20200002707U (de) |
| CN (1) | CN214122518U (de) |
| DE (2) | DE102018109345A1 (de) |
| WO (1) | WO2019201378A1 (de) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0812810A2 (de) * | 1996-06-13 | 1997-12-17 | Corning Incorporated | Optisches Gerät bestehend aus einem Susbstrat aus beta Eucryptit oder Quarzglas,einem optischen Element und einer Schmelzversieglung bestehend aus einer niederschmelzenden Fritte und einem Mahlzusatz |
| WO2002082135A2 (de) * | 2001-04-03 | 2002-10-17 | Deutsche Telekom Ag | Photonische kristalle |
| US20020150368A1 (en) | 2001-04-13 | 2002-10-17 | Hitachi Cable, Ltd. | Polymer waveguides and process for producing the same |
| DE60307148T2 (de) | 2002-03-07 | 2007-07-12 | Nitta Corp. | Kopplerschaltkreis für optische Wellenleiter |
| DE202011102663U1 (de) * | 2010-07-01 | 2011-12-05 | Eurokera S.N.C. | Kochplatte umfassend einen Wellenleiter |
-
2018
- 2018-04-19 DE DE102018109345.4A patent/DE102018109345A1/de not_active Ceased
-
2019
- 2019-03-25 DE DE202019005514.2U patent/DE202019005514U1/de active Active
- 2019-03-25 WO PCT/DE2019/100277 patent/WO2019201378A1/de not_active Ceased
- 2019-03-25 JP JP2020600186U patent/JP3236108U/ja active Active
- 2019-03-25 CN CN201990000646.6U patent/CN214122518U/zh active Active
- 2019-03-25 KR KR2020207000066U patent/KR20200002707U/ko not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0812810A2 (de) * | 1996-06-13 | 1997-12-17 | Corning Incorporated | Optisches Gerät bestehend aus einem Susbstrat aus beta Eucryptit oder Quarzglas,einem optischen Element und einer Schmelzversieglung bestehend aus einer niederschmelzenden Fritte und einem Mahlzusatz |
| WO2002082135A2 (de) * | 2001-04-03 | 2002-10-17 | Deutsche Telekom Ag | Photonische kristalle |
| US20020150368A1 (en) | 2001-04-13 | 2002-10-17 | Hitachi Cable, Ltd. | Polymer waveguides and process for producing the same |
| DE60307148T2 (de) | 2002-03-07 | 2007-07-12 | Nitta Corp. | Kopplerschaltkreis für optische Wellenleiter |
| DE202011102663U1 (de) * | 2010-07-01 | 2011-12-05 | Eurokera S.N.C. | Kochplatte umfassend einen Wellenleiter |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20200002707U (ko) | 2020-12-14 |
| DE202019005514U1 (de) | 2020-11-04 |
| DE102018109345A1 (de) | 2019-10-24 |
| CN214122518U (zh) | 2021-09-03 |
| JP3236108U (ja) | 2022-01-31 |
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