Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 8179934 | Frequency conversion laser head A laser assembly is configured with a frequency conversion laser head operative to shift a fundamental frequency of input light to the desired frequency of an output light. The frequency conversion laser head includes a dump means operative to guide an unconverted o... | 05/15/2012 |
| 8179929 | Apparatus and method for side mode suppression in slave-master laser by single mode fiber amplifier A laser system for effective injection seeding is configured with a master oscillator lasing a narrowband seed radiation which is characterized by a single longitudinal master mode injected into a slave oscillator so that the latter generates a broadband slave radia... | 05/15/2012 |
| 8160415 | High power fiber laser system with high quality beam A high power fiber laser system has a combiner configured of a plurality of single mode (SM) fibers which are fused together so as to define an output end of the fiber combiner. The fused SM fibers radiate respective fiber outputs, which collectively define a multim... | 04/17/2012 |
| 8139912 | Double clad optical fiber having ring core surrounding core for high power operation An optical fiber apparatus having a wavelength of operation comprises an optical fiber comprising a core; a pump cladding disposed about the core for receiving pump optical energy having a pump wavelength; and a second cladding disposed about for tending to confine ... | 03/20/2012 |
| 7903696 | High-power narrowed-linewidth fiber laser system A high-power narrow-linewidth fiber laser system includes a seed oscillator with multiple resonant cavities and an amplifier stage. The seed oscillator includes a gain fiber, a pump source to introduce pump light into the gain fiber, a single-mode output fiber arran... | 03/08/2011 |
| 7894692 | Method and device for suppressing high-order modes in MM fibers A laser system includes a multimode fiber (MMF) having a permanent perturbation region which is provided at the predetermined distance from the upstream end of the MMF. The perturbation region is configured so that propagating fundamental and at least one high-order... | 02/22/2011 |
| 7848368 | Fiber laser system A powerful fiber laser system is configured with at least one large-area multi-clad rare-earth doped fiber, which is configured with a MM core capable of propagating a single mode laser emission at a first wavelength, and with at least one pumping assembly capable o... | 12/07/2010 |
| 7839901 | High power fiber laser system with cladding light stripper A powerful fiber laser system is configured with at least one gain block. The gain block includes an input fiber guiding a pump light, a multiclad active fiber receiving the pump light so that a major portion is absorbed in the core of the active fiber while a minor... | 11/23/2010 |
| 7764723 | High brightness laser module A powerful high-brightness laser pump modules is configured with a plurality of spaced laser diodes each generating a light beam at a pump wavelength, and respective groups of optical components guiding the light beams along parallel light paths. The groups of the o... | 07/27/2010 |
| 7653116 | Portable laser head A portable laser head has a single-piece holder configured with a plurality of spaced-apart nests. The nests are arranged to receive at least a non-linear frequency converter, a V-shaped beam splitter and a dump collimator. Alternatively, the holder has multiple nes... | 01/26/2010 |
| 7593435 | Powerful fiber laser system A powerful fiber laser system is configured with at least one large-area multi-clad rare-earth doped fiber, which is configured with a MM core capable of propagating a single mode laser emission at a first wavelength, and with at least one pumping assembly capable o... | 09/22/2009 |
| 7580600 | Free space high power fiber coupler A waveguide receiving light which propagates through free space is configured with a coupler and delivery fiber. The coupler, including a GREEN or multimode fiber, has a protective coating and so does the delivery fiber. Upon splicing of the coupler to the delivery ... | 08/25/2009 |
| 7526162 | Collimator An epoxy-free collimator assembly is configured with a ferrule and a lens operative to move within an outer case to a desired position therebetween. The collimator assembly further has an aligning component made from soft, malleable material which is capable of fill... | 04/28/2009 |
| 7486892 | Multiport optical amplifier with narrowcast power equalization Apparatus and method for equalizing a multiplicity of amplifier optical output signals comprised of a combined broadcast optical signal and a narrowcast optical signal having different bands of wavelengths of light by adjusting the power output level of at least one... | 02/03/2009 |
| 7283714 | Large mode area fiber for low-loss transmission and amplification of single mode lasers A large mode area optical fiber includes a large diameter core (d1 up to 60 μm), and a first cladding (diameter d2) wherein the difference between refractive index (n1) in the core and the first cladding (n2) is very small (Δn | 10/16/2007 |
