Bin Ma, David B Knowles, Cory S Brown, Drew Murphy, Mark E Thompson: Organic light emitting materials and devices. Universal Display Corporation, The University of Southern California, Kenyon & Kenyon, February 3, 2004: US06687266 (397 worldwide citation)

An organic light emitting device is provided. The device includes an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer includes material having the structure:

Eric A Swanson, Stephen R Chinn: Method and apparatus for performing optical frequency domain reflectometry. Massachusetts Institute of Technology, Testa Hurwitz & Thibeault, December 12, 2000: US06160826 (274 worldwide citation)

Method of performing OFDR on a sample comprising steps of: providing an external-cavity frequency-tuned laser having an optical cavity of effective length; tuning the laser to generate a change in wavelength; changing the effective length of the optical cavity proportionally to the change in wavelen ...

Donald R Scifres: Multiple core fiber laser and optical amplifier. SDL, Thomas Schneck, October 15, 1996: US05566196 (199 worldwide citation)

A fiber laser or amplifier in which the optical fiber gain medium has two or more nonconcentric core regions, each of which is capable of gain or lasing when optically pumped. The fiber may be single clad or double clad, with multiple core regions embedded within a common cladding region or within s ...

Michael Mandella, Mark H Garrett: Confocal optical scanning system employing a fiber laser. Optical Biopsy Technologies, Luren Intellectual Property Services, March 23, 1999: US05887009 (176 worldwide citation)

A confocal optical scanning system using a flexible optical emissive fiber or fiber laser and having a lasing cavity defined within the fiber. The system in-couples a signal beam produced when a probe beam generated by the fiber laser is reflected from a scanned object back into the lasing cavity. T ...

Stephen G Grubb: Optical fiber laser or amplifier including high reflectivity gratings. AT&T Bell Laboratories, Eugen E Pacher, June 21, 1994: US05323404 (170 worldwide citation)

Novel optical fiber devices (amplifiers and lasers) are disclosed. The devices comprise one or more optical "cavities", depending on the type of device. The cavities typically are formed by means of in-line refractive index gratings in a length of silica-based optical fiber. The gratings typically h ...

Eric H Bott, Robert R Rice, Mark S Zediker: Fiber optic laser system and associated lasing method. McDonnell Douglas Corporation, Bell Seltzer Park & Gibson P A, December 2, 1997: US05694408 (147 worldwide citation)

The fiber optic laser system and associated lasing method amplifies and divides a primary laser signal into a plurality of secondary laser signals. The fiber optic laser system includes a distribution means, such as a distribution module, for dividing a primary laser signal, generated by a master os ...

Martin E Fermann: Mode-locked multimode fiber laser pulse source. Imra America, Knobbe Martens Olson & Bear, August 14, 2001: US06275512 (96 worldwide citation)

A laser utilizes a cavity design which allows the stable generation of high peak power pulses from mode-locked multi-mode fiber lasers, greatly extending the peak power limits of conventional mode-locked single-mode fiber lasers. Mode-locking may be induced by insertion of a saturable absorber into ...

Kohichi Tamura, Erich P Ipen, Hermann S Haus, Lynn E Nelson, Christopher R Doerr: Stretched-pulse fiber laser. Massachusetts Institute of Technology, Theresa A Lober, April 30, 1996: US05513194 (87 worldwide citation)

A fiber laser for producing high energy ultrashort laser pulses, having a positive-dispersion fiber segment and a negative-dispersion fiber segment joined in series with the positive-dispersion fiber segment to form a laser cavity. With this configuration, soliton effects of laser pulse circulation ...

Andrew John Stentz, Kenneth Lee Walker: Optical communication system using multiple-order Raman amplifiers. Lucent Technologies, Matthews Collins Shepherd & Gould P A, December 19, 2000: US06163636 (86 worldwide citation)

In accordance with the invention an optical fiber communication system comprising a source of optical signals and an optical fiber transmission line is provided with one or more multiple-order distributed Raman effect amplifiers downstream of the source for amplifying the transmitted signals. As com ...

Stephen G Grubb, David F Welch, Raymond Zanoni: High power laser optical amplifier system. SDL, W Douglas Carothers Jr, November 21, 2000: US06151338 (84 worldwide citation)

A high power laser optical amplifier system for material processing comprises multiple stage fiber amplifiers with rejection of propagating ASE buildup in and between the amplifier stages as well as elimination of SBS noise providing output powers in the range of about 10 .mu.J to about 100 .mu.J or ...