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US3594660A Expired / Lapsed US ⏱️ 0.0 years remaining

Mode-locked lasers

Assignee: Newport Corp USA
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Filing: 1968-08-29
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Granted: 1971-07-20
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Expires: 1988-08-29
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Abstract

Abstract A mode-locked laser in which a beat signal of the longitudinal modes is amplified and applied to an intraresonator modulator to form a self-oscillator for driving the modulator at a frequency which automatically changes to compensate for changes in mode spacing resulting from environmental perturbations of the resonator.

Inventors

  • 👤 George R Huggett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 21:42
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/11; H01S3/1106; H01S3/1109; H01S3/13; H01S3/136

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-07-19 1975-01-18 1975-07-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-07-19 1979-01-18 1979-07-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-07-19 1983-01-18 1983-07-20 $7700.00 Window Closed / Lapsed

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