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Patent US4630885A successfully refreshed from Google Patents.
US4630885A
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Multichannel optical wave guide resonator
Assignee: NOC (DELAWARE) Corp A CORP OF
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Filing: 1984-03-02
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Granted: 1986-12-23
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Expires: 2004-03-02
Abstract
Abstract A multichannel optical waveguide resonator having a plurality of evanescently coupled optical dielectric waveguide rings and an input optical waveguide and an output optical waveguide located adjacent to one of the waveguide rings. The input and output dielectric waveguides are located for evanescent wave coupling of light into and out of one of the waveguide rings. The perimeters of the waveguide rings and the spacing therebetween are selected for evanescent coupling between the waveguides and so that light in the input waveguide reinforces with light in one of the concentric waveguides to create a resonator having an increased effective perimeter.
Inventors
- 👤 John R. Haavisto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:48
CPC Classifications
G; G01; G01C; G01C19/00; G01C19/58; G01C19/64; G01C19/72; G01C19/727
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
Multichannel optical waveguide resonator comprising: an input dielectric waveguide; an output dielectric waveguide; and a plurality of coupled dielectric waveguide rings; wherein said input and said output dielectric waveguides are coupled to one of said coupled waveguide rings for evanescent wave coupling of light into and out of said one of said waveguide rings; and wherein the perimeters of said waveguide rings and the spacing therebetween are selected for evanescent coupling therebetween so that light in the input waveguide reinforces with light in said one of said waveguide rings.
Claim 2
Dependent Claim
89 words
Multichannel optical waveguide resonator comprising: an input dielectric waveguide; an output dielectric waveguide; and a plurality of coupled dielectric waveguide rings; wherein said input and said output dielectric waveguides are coupled to one of said coupled waveguide rings for evanescent wave coupling of light into and out of said one of said waveguide rings; and wherein the perimeters of said waveguide rings and the spacing therebetween are selected for evanescent coupling therebetween so that light in the input waveguide reinforces with light in said one of said waveguide rings.
Claim 3
Dependent Claim
14 words
The resonator of claim 1 wherein said input and output dielectric waveguides are straight.
Claim 4
Dependent Claim
12 words
The resonator of claim 1 wherein said waveguide rings are weakly coupled.
Claim 5
Dependent Claim
16 words
The resonator of claim 3 wherein only adjacent ones of said waveguide rings are evanescently coupled.
Claim 6
Dependent Claim
47 words
A resonator as claimed in claim 1 having N waveguide rings, the outermost waveguide ring having a perimeter p, and having a propogation constant β o and a coupling constant K wherein β.sub.o (Np)=n.sub.1 π and K(Np)=n.sub.2 π where n 1 , and n 2 are integers.
Claim 7
Dependent Claim
10 words
The resonator of claim 5 in which N=2 and ##EQU1##
Claim 8
Dependent Claim
18 words
The resonator of claim 1 wherein said dielectric waveguide rings are doped plexiglas supported on a quartz substrate.
Claim 9
Dependent Claim
19 words
The resonator of claim 1 wherein the perimeter of an outermost of said waveguide rings is approximately 30 cm.
Claim 10
Dependent Claim
13 words
The resonator of claim 1 wherein said coupled dielectric waveguide rings are concentric.
Claim 11
Dependent Claim
12 words
The resonator of claim 1 wherein said coupled waveguide rings are circular.
Claim 12
Dependent Claim
17 words
The resonator of claim 1 wherein said waveguide rings are made of a low loss electro-optic material.
Claim 13
Dependent Claim
14 words
The resonator of claim 1 wherein said waveguide rings are made of zinc oxide.
Claim 14
Dependent Claim
91 words
Multichannel optical waveguide resonator comprising: an input waveguide; an output waveguide; and a plurality of waveguide rings arranged in a repetitive pattern; wherein said input and said output waveguides are located for evanescent coupling of light into and out of at least one of said waveguides in said repetitive pattern; and wherein the parameters and location of said waveguide rings in said repetitive pattern of waveguides are selected for evanescent coupling therebetween so that light in the input waveguide reinforces with light in said at least one of said waveguide rings.
Claim 15
Dependent Claim
91 words
Multichannel optical waveguide resonator comprising: an input waveguide; an output waveguide; and a plurality of waveguide rings arranged in a repetitive pattern; wherein said input and said output waveguides are located for evanescent coupling of light into and out of at least one of said waveguides in said repetitive pattern; and wherein the parameters and location of said waveguide rings in said repetitive pattern of waveguides are selected for evanescent coupling therebetween so that light in the input waveguide reinforces with light in said at least one of said waveguide rings.
Claim 16
Dependent Claim
21 words
The resonator of claim 13 wherein said repetitive pattern comprises a stack of evanescently coupled waveguide rings of the same diameter.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |