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Coherent Light Generators > Particular Beam Control Device > Mode Locking Mode LockingMode Locking patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.09/27/07 - 20070223540 - Pulsed laser The invention concerning a pulsed laser is provided and includes an optical resonator being defined by at least two reflective elements, and the optical resonator defining a laser radiation beam path; the laser further including a solid-state gain structure arranged so as to be in the beam path, the gain ... 04/26/07 - 20070091942 - Laser diode generating passive mode and method of creating optical pulse using the same diode Provided are a laser diode generating passive mode locking that does not contain non-linear sector of an SA, and a method of creating an optical pulse using the same diode. The laser diode includes a DFB sector serving as a reflector and a gain sector. The gain sector is connected ... 04/26/07 - 20070091941 - Mode-locked laser and optical multi-carrier source using same A mode-locked laser serves as a light source for stabilizing the frequency of each optical carrier and generates high-quality optical multi-carrier. The mode-locked laser is equipped with a master laser for generating master laser light; a mode-locked laser section including in an optical resonator at least a modulating section, am ... 04/19/07 - 20070086493 - Short pulse laser device A short pulse laser arrangement (11) with, preferably, passive mode-locking, comprising a resonator (12) containing a laser crystal (14) and several mirrors (M1-M7; OC), one of which forms a pump beam coupling-in mirror (M1) and one of which forms a laser beam out-coupling mirror (OC), and a multiple reflexion telescope ... 01/04/07 - 20070002907 - Quasi-synchronously pumped lasers for self-starting pulse generation and widely tunable systems A laser system for generating self-starting few cycle laser pulses or widely tunable laser pulses is provided. The laser system includes a modelocked pump source that provides a pulsed pump signal. A gain medium receives the pulsed pump signal. A resonator structure includes the gain medium and a plurality of ... 11/23/06 - 20060262815 - Light pulse generating apparatus and method An apparatus for generating electromagnetic radiation pulses comprises a mode-locked laser oscillator with an oscillator cavity defining an oscillator beam path, a first gain element, first pumping means for pumping said first gain element, and a mode locker, and being operable to produce a train of seed electromagnetic radiation pulses. ... 11/02/06 - 20060245456 - Systems and methods for generating high repetition rate ultra-short optical pulses Systems, methods, circuits and/or devices for generating high repetition rate ultra-short pulses are described. As one of many examples, an optical pulse generating laser system is described that produces mode-locked optical pulses. The laser system incorporates an optical pulse generation device that includes two optical loops coupled via a beam ... 10/19/06 - 20060233205 - Mode-matching system for tunable external cavity laser An external cavity laser includes a lasing cavity and an optically coupled feedback cavity having differently spaced resonant lasing and feedback mode frequencies. The lasing modes can be collectively or individually matched to selected feedback modes. For example, a current driving the lasing cavity can be adjusted to shift individual ... 10/12/06 - 20060227818 - Fundamental-frequency monolithic mode-locked laser including multiple gain absorber pairs A monolithic mode-locked diode laser with improved uniformity of light distribution along the cavity. The laser includes a multiple gain section with more than one gain subsection where the length of each subsection is less than the reciprocal gain coefficient in the gain subsection and a multiple saturable absorber section ... 10/05/06 - 20060222024 - Mode-locked semiconductor lasers with quantum-confined active region A mode-locked integrated semiconductor laser has a gain section and an absorption section that are based on quantum-confined active regions. The optical mode(s) in each section can be modeled as occupying a certain cross-sectional area, referred to as the mode cross-section. The mode cross-section in the absorber section is larger ... 05/04/06 - 20060092995 - High-power mode-locked laser system A multi-wavelength, commonly mode-locked external cavity laser system includes a solid state gain element generating a collinearly propagating multi-wavelength optical beam, a diffracting element that diffracts the multi-wavelength optical beam into a plurality of diffracted optical beams, a wavelength-selective device receiving the plurality of diffracted optical beams and controllably transmitting ... 05/04/06 - 20060092994 - High-power amplified spectrally combined mode-locked laser An amplified commonly mode-locked and/or Q-switched external cavity laser device with a plurality of gain elements and a plurality of amplifying elements is described. The device produces amplified optical pulses of picosecond to nanoseconds duration. The amplified pulses can be used in applications requiring large optical pulse energy and also ... 05/04/06 - 20060092993 - High-power mode-locked laser device A mode-locked external cavity laser device includes a plurality of gain elements with corresponding end mirrors, and a diffracting element that diffracts optical beams emitted by the gain elements and combines the diffracted optical beams to form an overlapping output beam. A mode-locking device that intercepts the overlapping output beam ... 04/13/06 - 20060078010 - Modulation frequency tunable optical oscillator Provided is a millimeter-wave band frequency optical oscillator that can be used as an oscillation frequency signal source for a millimeter-wave forwarded to wireless subscribers from a base station of a millimeter-wave wireless subscriber communication system for a next generation (e.g., fifth generation) ultra-high speed wireless internet service. A pair ... 03/02/06 - 20060045145 - Mode-locked laser diode device and wavelength control method for mode-locked laser diode device The present invention is constructed by an optical pulse generation section 101 including MLLD1, CW light source 19, first optical coupling means 110 and second optical coupling means 112. An optical wave guide 30 which includes an optical gain area 3, optical modulation area 2 and a passive wave-guiding area ... 02/02/06 - 20060023757 - Apparatus, system, and method for wavelength conversion of mode-locked extended cavity surface emitting semiconductor lasers A mode-locked laser with intracavity frequency conversion is disclosed. In one embodiment the conversion frequency is improved by reducing the temporal, spatial, or polarization overlap between pulses at the fundamental frequency and pulses at a frequency-shifted frequency. ... 12/29/05 - 20050286569 - Resonant fabry-perot semiconductor saturable absorbers and two photon absorption power limiters An intracavity resonant Fabry-Perot saturable absorber (R-FPSA) induces modelocking in a laser such as a fiber laser. An optical limiter such as a two photon absorber (TPA) can be used in conjunction with the R-FPSA, so that Q-switching is inhibited, resulting in laser output that is cw modelocked. By using ... 11/24/05 - 20050259698 - Method and apparatus for pulse-amplitude equalization of rational harmonic mode-locked optical signal A method and an apparatus for pulse-amplitude equalization of rational harmonic mode-locked optical pulses provides modulation voltages greater than a switching voltage of a dual-electorde Mach-Zehnder modulator to electrodes of the Mach-Zehnder modulator, so that rational harmonic mode-locked optical pulses experience the same transmission coefficient through the Mach-Zehnder modulator, to ... 10/20/05 - 20050232314 - External oscillation type mode-locking semiconductor laser An external-cavity mode-locked semiconductor laser includes: a semiconductor laser device including a gain region and a saturable absorption region; a reflecting mirror; and a modulation bias generating circuit for supplying a modulation bias modulated by a microwave to the saturable absorption region. The semiconductor laser device has a reflecting surface ... 10/06/05 - 20050220154 - Broadband mode-locked laser oscillator and oscillation method thereof A laser oscillator to further shorten a pulse width is provided by enabling broadband mode-locking even while using a laser medium having a precipitous fluorescence peak. A resonator has two concave mirrors and four chirped mirrors, and cavity-dispersion is compensated by these chirped mirrors. A semiconductor laser output is focused ... 08/04/05 - 20050169324 - Self-similar laser oscillator A laser producing high energy ultrashort laser pulses comprises a normal dispersion segment, a gain segment, an anomalous dispersion segment with negligible nonlinearity and an effective saturable absorber arranged to form a laser cavity. Each segment is optically interconnected so that a laser pulse will propagate self-similarly therein. (A pulse ... 07/14/05 - 20050152413 - Laser driver circuit for burst mode transmission and manufacturing method A method for making a laser driver circuit for burst mode is described. A continuous mode laser driver circuit can be used in burst mode transmission system by using the method. The method is described as follows. First, a continuous mode laser driver chip is selected, the chip has a ... 06/02/05 - 20050117614 - Mode-locked laser method and apparatus A method and apparatus for stabilizing the output of a mode-locked laser by monitoring the temporal behavior of the pulse train profile and controlling the laser cavity optical length and/or loss modulation frequency accordingly. A mismatch of the cavity optical length and the loss modulation frequency will yield a first ... ### FreshPatents.com Support |