US5148510A
Expired / Lapsed
US
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Optical fiber made of galliobismuthate glasses and optical devices using same
Assignee: Corning Inc
•
Filing: 1991-11-18
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Granted: 1992-09-15
•
Expires: 2011-11-18
Abstract
Abstract This invention is drawn to heavy metal oxide glasses exhibiting high nonlinear susceptibility and infrared transmission consisting essentially, in weight percent, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member of the group consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O. This invention also comprehends the fabrication of light guiding fibers from those glasses.
Inventors
- 👤 Nicholas F. Borrelli
- 👤 William H. Dumbaugh, Jr.
- 👤 Doublas W. Hall
- 👤 Josef C. Lapp
- 👤 Mark A. Newhouse
- 👤 Mark L. Powley
- 👤 David L. Weidman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:40
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/3555; C; C03; C03C; C03C13/00; C03C13/04; C03C13/045; C03C13/046; C03C13/048; C03C3/00; C03C3/04; C03C3/062; C03C3/07; C03C3/12; C03C3/122; C03C3/253
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
179 words
In a light guiding fiber consisting of a core portion and a cladding portion, the improvement comprising said core portion being composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and said cladding portion being composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeC 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 2
Dependent Claim
179 words
In a light guiding fiber consisting of a core portion and a cladding portion, the improvement comprising said core portion being composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and said cladding portion being composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeC 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 3
Dependent Claim
64 words
A light guiding fiber according to claim 1 wherein said cladding and core portions comprise a glass consisting essentially of 43-46% PbO, 35-43% Bi 2 O 3 , 11-13% Ga 2 O 3 , and up to 8% total of at least one members of the group in the indicated proportion consisting of 0.5-3% SiO 2 and/or GeO 2 and 4-8% Tl 2 O.
Claim 4
Dependent Claim
193 words
In a nonlinear mode coupling device comprising a multi-core coupler wherein the coupling between at least two modes of a waveguide structure is altered by nonlinear interaction, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% T120, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 5
Dependent Claim
193 words
In a nonlinear mode coupling device comprising a multi-core coupler wherein the coupling between at least two modes of a waveguide structure is altered by nonlinear interaction, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% T120, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 6
Dependent Claim
194 words
In a nonlinear mode coupling device comprising a single core device wherein the coupling between at least two modes of a waveguide structure is altered by nonlinear interaction, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% T120, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO.sub. 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 7
Dependent Claim
194 words
In a nonlinear mode coupling device comprising a single core device wherein the coupling between at least two modes of a waveguide structure is altered by nonlinear interaction, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% T120, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO.sub. 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 8
Dependent Claim
205 words
In a nonlinear interference device of the guided wave type wherein the phases of at least two direct and/or reflected light beams are altered by utilizing variations in the optical path length resulting from third order susceptibility, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 9
Dependent Claim
205 words
In a nonlinear interference device of the guided wave type wherein the phases of at least two direct and/or reflected light beams are altered by utilizing variations in the optical path length resulting from third order susceptibility, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 10
Dependent Claim
117 words
In a nonlinear interference device of the bulk optics type employing a nonlinearly active optical element wherein the phases of at least two direct and/or reflected light beams are altered by utilizing variations in the optical path length resulting from third order susceptibility, the improvement comprising a nonlinearly active optical element composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O.
Claim 11
Dependent Claim
117 words
In a nonlinear interference device of the bulk optics type employing a nonlinearly active optical element wherein the phases of at least two direct and/or reflected light beams are altered by utilizing variations in the optical path length resulting from third order susceptibility, the improvement comprising a nonlinearly active optical element composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O.
Claim 12
Dependent Claim
206 words
In a Raman or Brillouin amplifier wherein a signal beam is combined with a pump beam and is amplified by the pump beam utilizing stimulated Raman or Brillouin scattering, said amplifier having as its active optical medium a waveguide, the improvement comprising a waveguide consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 13
Dependent Claim
206 words
In a Raman or Brillouin amplifier wherein a signal beam is combined with a pump beam and is amplified by the pump beam utilizing stimulated Raman or Brillouin scattering, said amplifier having as its active optical medium a waveguide, the improvement comprising a waveguide consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 14
Dependent Claim
199 words
In an optical phase conjugator, wherein three optical waves interact through third order susceptibility to form a fourth, phase conjugate wave, said optical phase conjugator being of the guided wave type, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 15
Dependent Claim
199 words
In an optical phase conjugator, wherein three optical waves interact through third order susceptibility to form a fourth, phase conjugate wave, said optical phase conjugator being of the guided wave type, the improvement comprising a waveguide structure consisting of a core portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O, and a cladding portion composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O such that said cladding and core portions are sufficiently dissimilar in composition to achieve a desired difference in refractive index therebetween.
Claim 16
Dependent Claim
111 words
In an optical phase conjugator, wherein three optical waves interact through third order susceptibility to form a fourth, phase conjugate wave, said optical phase conjugator being of the bulk optics type employing a nonlinearly active optical element, the improvement comprising a nonlinearly active optical element composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O.
Claim 17
Dependent Claim
111 words
In an optical phase conjugator, wherein three optical waves interact through third order susceptibility to form a fourth, phase conjugate wave, said optical phase conjugator being of the bulk optics type employing a nonlinearly active optical element, the improvement comprising a nonlinearly active optical element composed of a glass consisting essentially, expressed in terms of weight percent on the oxide basis, of 42-48% PbO, 33-44% Bi 2 O 3 , 10-15% Ga 2 O 3 , and up to 15% total of at least one member selected from the group in the indicated proportion consisting of up to 5% SiO 2 and/or GeO 2 and up to 15% Tl 2 O.
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |