Method for amplifying laser signals and an amplifier for use in said method
February 10, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3354407 3725811 Mixed oxides for tunable lasers Fiber optic amplifier 4927768 Chromium-doped foresterite laser system Tetravalent chromium (Cr4+) as a laser-active ion for tunabale solid-state lasers Liquid crystal light value in combination with cathode ray tube containing a far-red emitting phosphor Optical gain medium having doped nanocrystals of semiconductors and also optical scatterers Conversion of doped polycrystalline material to single crystal InventorsAssigneeApplicationNo. 386483 filed on 02/10/1995US Classes:359/342, Particular active medium (e.g., crystal, plasma, fluid, etc.)372/39, PARTICULAR ACTIVE MEDIA372/41Insulating crystalExaminersPrimary: Hellner, MarkAttorney, Agent or FirmInternational ClassesH01S 003/00H01S 003/16 AbstractA method for amplifying a signal pulse of laser light. Preferably, the method is used to amplify 1.3 μm and/or 1.55 μm signal pulses emitted from any 1.3 μm or 1.55 μm signal source, the method comprising providing an amplifying medium, the amplifying medium comprising an elongated core and a light-retaining outer structure surrounding the elongated core. The elongated core preferably comprises a plurality of Cr4+ -doped crystalline particles capable of lasing at 1.3 μm and/or 1.55 μm and preferably having a size of approximately 0.05 μm to 500 μm. The crystalline particles are dispersed within a non-gaseous medium, the non-gaseous medium having an index of refraction that substantially matches that of the crystalline particles. The method further comprises pumping the elongated core, either transversely or longitudinally, so as to excite the crystalline particles and transmitting the signal pulse of laser light through the elongated core while the crystalline particles are excited whereby the signal pulse of laser light becomes amplified. The present invention is also directed to an amplifier comprising the above-described amplifying medium in combination with a light source capable of pumping the elongated core in such a way as to excite the crystalline particles.Field of SearchInsulating crystalPlural active media or active media having plural dopants PARTICULAR ACTIVE MEDIA Utilizing color centers Group IV element containing Compositions containing halogen; e.g., halides and oxyhalides INORGANIC LUMINESCENT COMPOSITIONS Particular active medium (e.g., crystal, plasma, fluid, etc.) | |
