US4548464A
Expired / Lapsed
US
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Frequency analyzer in planar waveguide technology and method of manufacture
Assignee: Siemens AG
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Filing: 1982-08-19
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Granted: 1985-10-22
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Expires: 2002-08-19
Abstract
Abstract A frequency analyzer, which is manufactured in a planar waveguide technology has a first substrate provided with a waveguide modulator for modulating light travelling in the waveguide connected to a lens for the Fourier transformation of the modulated light. The material of the lens is different than the material of the substrate having the modulator and preferably is either a rod shaped gradient lens or a second substrate, which as a geodesic waveguide lens pressed into the surface.
Inventors
- 👤 Franz Auracher
- 👤 Michael Stockmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:50
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/16; G01R23/17; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/122; G02B6/124; G02B6/1245; G02F; G02F1/00; G02F1/01; G02F1/11; G02F1/125
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
106 words
An acousto-optical frequency analyzer constructed to minimize manufacturing cost wherein the analyzer includes a first part comprising a first substrate of a first material, a first waveguide of the first substrate, and a means for modulating light traveling in the first waveguide; a second part comprising a second substrate of a second material, a second waveguide on the second substrate, a geodesic lens being formed in said second substrate and the second material being a material selected from the group consisting of glass and synthetic plastics; and the first and second parts being optically coupled with light passing from the first waveguide into the second waveguide.
Claim 2
Dependent Claim
106 words
An acousto-optical frequency analyzer constructed to minimize manufacturing cost wherein the analyzer includes a first part comprising a first substrate of a first material, a first waveguide of the first substrate, and a means for modulating light traveling in the first waveguide; a second part comprising a second substrate of a second material, a second waveguide on the second substrate, a geodesic lens being formed in said second substrate and the second material being a material selected from the group consisting of glass and synthetic plastics; and the first and second parts being optically coupled with light passing from the first waveguide into the second waveguide.
Claim 3
Dependent Claim
16 words
A frequency analyzer according to claim 1 wherein the first material consists of LiNbO 3 .
Claim 4
Dependent Claim
22 words
A frequency analyzer according to claim 1 wherein said first and second parts are connected to one another by a butt joint.
Claim 5
Dependent Claim
18 words
A frequency analyzer according to claim 3, wherein an anti-reflection layer is positioned between the butt coupled parts.
Claim 6
Dependent Claim
38 words
A frequency analyzer according to claim 1, which includes a third substrate of a material different from the material of the first substrate, said third substrate having a geodesic lens to form a collimation lens for the analyzer.
Claim 7
Dependent Claim
27 words
A frequency analyzer according to claim 1, wherein the second substrate consists of a material in which the lens can be produced in a hot pressing method.
Claim 8
Dependent Claim
133 words
An acousto-optical frequency analyzer constructed to minimize manufacturing costs wherein the analyzer includes at least two first parts, each first part comprising a first substrate of a first material, a first waveguide on the first substrate, and means for modulating light traveling in the first waveguide; a second part comprising a second substrate of a second material, said second material being a material selected from a group consisting of glass and synthetic plastics, a second waveguide on the second substrate and a geodesic lens being formed in the second waveguide; and each of the first parts being optically coupled to the second part with the first waveguide being optically coupled to the second waveguide so that the geodesic lens is a common geodesic lens for light traveling in each of the first waveguides.
Claim 9
Dependent Claim
133 words
An acousto-optical frequency analyzer constructed to minimize manufacturing costs wherein the analyzer includes at least two first parts, each first part comprising a first substrate of a first material, a first waveguide on the first substrate, and means for modulating light traveling in the first waveguide; a second part comprising a second substrate of a second material, said second material being a material selected from a group consisting of glass and synthetic plastics, a second waveguide on the second substrate and a geodesic lens being formed in the second waveguide; and each of the first parts being optically coupled to the second part with the first waveguide being optically coupled to the second waveguide so that the geodesic lens is a common geodesic lens for light traveling in each of the first waveguides.
Claim 10
Dependent Claim
57 words
A frequency analyzer according to claim 7, wherein the second substrate of the second part has a polygonal shape, each of said first parts being coupled in abutting relation to a separate side and a detector array for each first part being disposed on a side of the second substrate opposite the side having the first part.
Claim 11
Dependent Claim
21 words
A frequency analyzer according to claim 8, wherein said second substrate of the second part has an even number of sides.
Claim 12
Dependent Claim
14 words
A frequency analyzer according to claim 9, wherein the second substrate has six sides.
Claim 13
Dependent Claim
21 words
A frequency analyzer according to claim 9, wherein the first parts are attached to adjacent sides of the polygonal-shaped second part.
Claim 14
Dependent Claim
29 words
A frequency analyzer according to claim 9, wherein each first part is attached to a side of the second part having an adjacent side provided with a detector array.
Claim 15
Independent Claim
123 words
A method for producing a frequency analyzer for planar waveguide technology have a planar waveguide modulator from modulating light disposed on one substrate connected to a second substrate having a geodesic lens for creating a Fourier transformation of the light modulated by said modulator, said method providing a substrate, forming a waveguide on the surface of said substrate, forming a planar waveguide modulator on said waveguide to form the substrate having a waveguide modulator, providing at least a second substrate of a material different than the material of the first mentioned substrate, forming a waveguide on the surface thereof, and pressing a die into the surface of said waveguide to form the geodesic lens, then abutting said substrates together to complete the analyzer.
Claim 16
Independent Claim
123 words
A method for producing a frequency analyzer for planar waveguide technology have a planar waveguide modulator from modulating light disposed on one substrate connected to a second substrate having a geodesic lens for creating a Fourier transformation of the light modulated by said modulator, said method providing a substrate, forming a waveguide on the surface of said substrate, forming a planar waveguide modulator on said waveguide to form the substrate having a waveguide modulator, providing at least a second substrate of a material different than the material of the first mentioned substrate, forming a waveguide on the surface thereof, and pressing a die into the surface of said waveguide to form the geodesic lens, then abutting said substrates together to complete the analyzer.
Claim 17
Dependent Claim
28 words
A method according to claim 13, wherein the step of pressing a die into the surface of the second waveguide to form the geodesic lens comprises hot pressing.
Claim 18
Dependent Claim
26 words
A method according to claim 13, wherein the material of the second substrate comprises a material selected from a group consisting of glass and synthetic plastics.
References Cited (Backward Citations)
US4403825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-21 | 1989-04-22 | 1989-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-21 | 1993-04-22 | 1993-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-21 | 1997-04-22 | 1997-10-22 | $7700.00 | Window Closed / Lapsed |