Patent application number | Description | Published |
20100060978 | METHOD AND APPARATUS FOR CONTROLLING AND PROTECTING PULSED HIGH POWER FIBER AMPLIFIER SYSTEMS - An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy. | 03-11-2010 |
20100272129 | YB: AND ND: MODE-LOCKED OSCILLATORS AND FIBER SYSTEMS INCORPORATED IN SOLID-STATE SHORT PULSE LASER SYSTEMS - The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier. | 10-28-2010 |
20120120971 | YB: AND ND: MODE-LOCKED OSCILLATORS AND FIBER SYSTEMS INCORPORATED IN SOLID-STATE SHORT PULSE LASER SYSTEMS - The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier. | 05-17-2012 |
20120212803 | METHOD AND APPARATUS FOR CONTROLLING AND PROTECTING PULSED HIGH POWER FIBER AMPLIFIER SYSTEMS - An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy. | 08-23-2012 |
20130293941 | YB: AND ND: MODE-LOCKED OSCILLTORS AND FIBER SYSTEMS INCORPORATED IN SOLID-STATE SHORT PULSE LASER SYSTEMS - The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier. | 11-07-2013 |
Patent application number | Description | Published |
20080285118 | METHOD AND APPARATUS FOR CONTROLLING AND PROTECTING PULSED HIGH POWER FIBER AMPLIFIER SYSTEMS - An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy. | 11-20-2008 |
20090097515 | YB: AND ND: MODE-LOCKED OSCILLATORS AND FIBER SYSTEMS INCORPORATED IN SOLID-STATE SHORT PULSE LASER SYSTEMS - The invention describes classes of robust fiber laser systems usable as pulse sources for Nd: or Yb: based regenerative amplifiers intended for industrial settings. The invention modifies adapts and incorporates several recent advances in FCPA systems to use as the input source for this new class of regenerative amplifier. | 04-16-2009 |
20120008649 | HIGH POWER SHORT PULSE FIBER LASER - A pulsed laser comprises an oscillator and amplifier. An attenuator and/or pre-compressor may be disposed between the oscillator and amplifier to improve performance and possibly the quality of pulses output from the laser. Such pre-compression may be implemented with spectral filters and/or dispersive elements between the oscillator and amplifier. The pulsed laser may have a modular design comprising modular devices that may have Telcordia-graded quality and reliability. Fiber pigtails extending from the device modules can be spliced together to form laser system. In one embodiment, a laser system operating at approximately 1050 nm comprises an oscillator having a spectral bandwidth of approximately 19 nm. This oscillator signal can be manipulated to generate a pulse having a width below approximately 90 fs. | 01-12-2012 |
20120215208 | METHOD AND APPARATUS FOR PRECISION WORKING OF MATERIAL - A method for precise working of material, particularly organic tissue, comprises the step of providing laser pulses with a pulse length between 50 fs and 1 ps and with a pulse frequency from 50 kHz to 1 MHz and with a wavelength between 600 and 2000 nm for acting on the material to be worked. Apparatus, in accordance with the invention, for precise working of material, particularly organic tissue comprising a pulsed laser, wherein the laser has a pulse length between 50 fs and 1 ps and with a pulse frequency of from 50 kHz to 1 MHz is also described. | 08-23-2012 |
Patent application number | Description | Published |
20100114190 | NERVE STIMULATOR AND METHOD USING SIMULTANEOUS ELECTRICAL AND OPTICAL SIGNALS - An apparatus and method for stimulating animal tissue (for example to trigger a nerve action potential (NAP) signal in a human patient) by application of both electrical and optical signals for treatment and diagnosis purposes. The application of an electrical signal before or simultaneously to the application of a NAP-triggering optical signal allows the use of a lower amount of optical power or energy than would otherwise be needed if an optical signal alone was used for the same purpose and effectiveness. The application of the electrical signal may precondition the nerve tissue such that a lower-power optical signal can be used to trigger the desired NAP, which otherwise would take a higher-power optical signal were the electric signal not applied. Some embodiments include an implanted nerve interface having a plurality of closely spaced electrodes placed transversely and/or longitudinally to the nerve and a plurality of optical emitters. | 05-06-2010 |
20110172725 | NERVE STIMULATOR AND METHOD USING SIMULTANEOUS ELECTRICAL AND OPTICAL SIGNALS - An apparatus and method for stimulating animal tissue (for example to trigger a nerve action potential (NAP) signal in a human patient) by application of both electrical and optical signals for treatment and diagnosis purposes. The application of an electrical signal before or simultaneously to the application of a NAP-triggering optical signal allows the use of a lower amount of optical power or energy than would otherwise be needed if an optical signal alone was used for the same purpose and effectiveness. The application of the electrical signal may precondition the nerve tissue such that a lower-power optical signal can be used to trigger the desired NAP, which otherwise would take a higher-power optical signal were the electric signal not applied. Some embodiments include an implanted nerve interface having a plurality of closely spaced electrodes placed transversely and/or longitudinally to the nerve and a plurality of optical emitters. | 07-14-2011 |
20110238141 | MINIATURE METHOD AND APPARATUS FOR OPTICAL STIMULATION OF NERVES AND OTHER ANIMAL TISSUE - A hand-held self-contained nerve-stimulation device and method using light to provide a source of precise stimulation on one or more nerve fibers. In some embodiments, this simulation is provided through a device and method wherein a laser- or LED-light source is mounted to the handpiece. Light is passed from the light source through optical tip to simulate nerves. In some embodiments, the device is constructed from non-magnetic material such as glass, plastic or ceramics. In some embodiments, the light emanating from the optical tip can be controlled manually or automatically. In some embodiments, the handpiece contains a self-contained power source, such as batteries. In some embodiments, the handpiece is at least in part, activated by remote control in order to prevent moving the handpiece during activation. Some embodiments include a unit operable to sense a response of nerve stimulation and to suppress a laser-ablation surgery operation. | 09-29-2011 |
20110295344 | OPTICAL BUNDLE APPARATUS AND METHOD FOR OPTICAL AND/OR ELECTRICAL NERVE STIMULATION OF PERIPHERAL NERVES - Apparatus and method for making and using devices that generate optical signals, and optionally also electrical signals in combination with one or more such optical signals, to stimulate (i.e., trigger) and/or simulate a sensory-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to treat nerve damage in the peripheral nervous system (PNS) or the central nervous system (CNS) and provide sensations to stimulate and/or simulate “sensory” signals in nerves and/or brain tissue of a living animal (e.g., a human) to treat other sensory deficiencies (e.g., touch, feel, balance, visual, taste, or olfactory) and provide sensations related to those sensory deficiencies, and/or to stimulate (i.e., trigger) and/or simulate a motor-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to control a muscle or a robotic prosthesis. | 12-01-2011 |
20110295345 | IMPLANTABLE INFRARED NERVE STIMULATION DEVICES FOR PERIPHERAL AND CRANIAL NERVE INTERFACES - Apparatus and method for making and using devices that generate optical signals, and optionally also electrical signals in combination with one or more such optical signals, to stimulate (i.e., trigger) and/or simulate a sensory-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to treat nerve damage in the peripheral nervous system (PNS) or the central nervous system (CNS) and provide sensations to stimulate and/or simulate “sensory” signals in nerves and/or brain tissue of a living animal (e.g., a human) to treat other sensory deficiencies (e.g., touch, feel, balance, visual, taste, or olfactory) and provide sensations related to those sensory deficiencies, and/or to stimulate (i.e., trigger) and/or simulate a motor-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to control a muscle or a robotic prosthesis. | 12-01-2011 |
20110295346 | CUFF APPARATUS AND METHOD FOR OPTICAL AND/OR ELECTRICAL NERVE STIMULATION OF PERIPHERAL NERVES - Apparatus and method for making and using devices that generate optical signals, and optionally also electrical signals in combination with one or more such optical signals, to stimulate (i.e., trigger) and/or simulate a sensory-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to treat nerve damage in the peripheral nervous system (PNS) or the central nervous system (CNS) and provide sensations to stimulate and/or simulate “sensory” signals in nerves and/or brain tissue of a living animal (e.g., a human) to treat other sensory deficiencies (e.g., touch, feel, balance, visual, taste, or olfactory) and provide sensations related to those sensory deficiencies, and/or to stimulate (i.e., trigger) and/or simulate a motor-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to control a muscle or a robotic prosthesis. | 12-01-2011 |
20110295347 | NERVE-PENETRATING APPARATUS AND METHOD FOR OPTICAL AND/OR ELECTRICAL NERVE STIMULATION OF PERIPHERAL NERVES - Apparatus and method for making and using devices that generate optical signals, and optionally also electrical signals in combination with one or more such optical signals, to stimulate (i.e., trigger) and/or simulate a sensory-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to treat nerve damage in the peripheral nervous system (PNS) or the central nervous system (CNS) and provide sensations to stimulate and/or simulate “sensory” signals in nerves and/or brain tissue of a living animal (e.g., a human) to treat other sensory deficiencies (e.g., touch, feel, balance, visual, taste, or olfactory) and provide sensations related to those sensory deficiencies, and/or to stimulate (i.e., trigger) and/or simulate a motor-nerve signal in nerve and/or brain tissue of a living animal (e.g., a human), for example to control a muscle or a robotic prosthesis. | 12-01-2011 |