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US3846142A Expired / Lapsed US ⏱️ 0.0 years remaining

Nd and yb containing phosphate glasses for laser use

Assignee: Individual
•
Filing: 1972-09-18
•
Granted: 1974-11-05
•
Expires: 1992-09-18
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Abstract

Abstract 1. A GLASS FOR LASER USE COMPRISING THE FOLLOWING COMPONENTS, IN PRESENT BY WEIGHT-40-90% OF METAPHOSPHATES SELECTED FROM THE GROUP CONSISTING OF LI, NA, K, ZN, CD, BA, PB, MG, CA, AND SR, 5-50% OF PHOSPHATES OF ELEMENTS SELECTED FROM THE GROUP CONSISTING OF AL, ZR, B, AND CE, 1-7% OF TRIVALENT NEODYMIUM ND3+, AND 0.3-5% OF TRIVALENT YTTERBIUM UB3+, SAID GLASS HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 50-160X10**-7 1/DEGREE, A MICROHARDNESS IN THE RANGE OF 300-450 KG./MM,2,A QUANTUM EFFICIENCY OF TRANSMISSION OF ND3+>YB3+HIGHER THAN 0.7, THE SECTION OF STIMULATED EMISSION OF YTTERBIUM AT X=1060 NM. BEING EQUAL TO ABOUT 2.5-5X10**-21 CM.2, AND A MAXIMUM INVERSION AT ELECTRIC ENERGY OF PUMPING OF 80 JOULES/CM.3 IS 1.5 TO 2X10**19 1/CM.2.

Inventors

  • 👤 M Zhabotinsky
  • 👤 A Izyneev
  • 👤 E Koryagina
  • 👤 V Kravchenko
  • 👤 J Rudnitsky
  • 👤 E Sverchkov
  • 👤 N Alexeev
  • 👤 B Davydov
  • 👤 I Buzhinsky
  • 👤 V Gapontsev

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 03:18
CPC Classifications
H; H01; H01J; H01J3/00; H01J3/14; H01J3/16; C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/17; C03C3/19; C03C3/21; C03C4/00; C03C4/0071; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/17

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 121 words
A GLASS FOR LASER USE COMPRISING THE FOLLOWING COMPONENTS, IN PRESENT BY WEIGHT-40-90% OF METAPHOSPHATES SELECTED FROM THE GROUP CONSISTING OF LI, NA, K, ZN, CD, BA, PB, MG, CA, AND SR, 5-50% OF PHOSPHATES OF ELEMENTS SELECTED FROM THE GROUP CONSISTING OF AL, ZR, B, AND CE, 1-7% OF TRIVALENT NEODYMIUM ND3+, AND 0.3-5% OF TRIVALENT YTTERBIUM UB3+, SAID GLASS HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 50-160X10**-7 1/DEGREE, A MICROHARDNESS IN THE RANGE OF 300-450 KG./MM,2,A QUANTUM EFFICIENCY OF TRANSMISSION OF ND3+>YB3+HIGHER THAN 0.7, THE SECTION OF STIMULATED EMISSION OF YTTERBIUM AT X=1060 NM. BEING EQUAL TO ABOUT 2.5-5X10**-21 CM.2, AND A MAXIMUM INVERSION AT ELECTRIC ENERGY OF PUMPING OF 80 JOULES/CM.3 IS 1.5 TO 2X10**19 1/CM.2.
Claim 2
Dependent Claim 121 words
A GLASS FOR LASER USE COMPRISING THE FOLLOWING COMPONENTS, IN PRESENT BY WEIGHT-40-90% OF METAPHOSPHATES SELECTED FROM THE GROUP CONSISTING OF LI, NA, K, ZN, CD, BA, PB, MG, CA, AND SR, 5-50% OF PHOSPHATES OF ELEMENTS SELECTED FROM THE GROUP CONSISTING OF AL, ZR, B, AND CE, 1-7% OF TRIVALENT NEODYMIUM ND3+, AND 0.3-5% OF TRIVALENT YTTERBIUM UB3+, SAID GLASS HAVING A THERMAL EXPANSION COEFFICIENT IN THE RANGE OF 50-160X10**-7 1/DEGREE, A MICROHARDNESS IN THE RANGE OF 300-450 KG./MM,2,A QUANTUM EFFICIENCY OF TRANSMISSION OF ND3+>YB3+HIGHER THAN 0.7, THE SECTION OF STIMULATED EMISSION OF YTTERBIUM AT X=1060 NM. BEING EQUAL TO ABOUT 2.5-5X10**-21 CM.2, AND A MAXIMUM INVERSION AT ELECTRIC ENERGY OF PUMPING OF 80 JOULES/CM.3 IS 1.5 TO 2X10**19 1/CM.2.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-11-04 1978-05-06 1978-11-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-11-04 1982-05-06 1982-11-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-11-04 1986-05-06 1986-11-05 $7700.00 Window Closed / Lapsed

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