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US20090310630 |
SEMICONDUCTOR INTEGRATED DEVICE
A semiconductor integrated device includes a plurality of wavelength tunable lasers, provided on a semiconductor substrate, and having oscillation wavelength ranges different from each other. Each...
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US20090296753 |
SEMICONDUCTOR LASER AND OPTICAL INTEGRATED SEMICONDUCTOR DEVICE
A tunable distributed feedback semiconductor laser includes a substrate; an optical waveguide structure disposed on a main surface of the substrate and including an active layer and a diffraction...
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US20090279576 |
DUAL OUTPUT LASER SOURCE
A dual output laser source provided on a substrate outputs light from a first and second output. A portion of the light generated by the laser is supplied to a first modulator via the first output....
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US20090263074 |
DISTRIBUTED FEEDBACK LASER ARRAY
The present invention provides a low-cost, high-bandwidth optical laser array where subsequent streams of data are injected in a serial fashion. The invention permits the creation of multiple...
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US20090201964 |
Semiconductor laser optical integrated semiconductor device
A semiconductor laser is a distributed feedback semiconductor laser in which the lasing wavelength can be changed, and includes a semiconductor substrate and a semiconductor layer portion provided...
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US20090147818 |
ENHANCED SURFACE-EMITTING PHOTONIC DEVICE
A surface-emitting photonic device including a structure disposed therein to enhance a performance thereof. The structure includes a two dimensionally periodic second order distributed feedback...
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US20090080482 |
GAIN-COUPLED DISTRIBUTED FEEDBACK SEMICONDUCTOR LASER INCLUDING FIRST-ORDER AND SECOND-ORDER GRATINGS
A gain-coupled distributed feedback (DFB) semiconductor laser includes a grating formed by grooves through at least a part of an active region of a laser cavity. The DFB laser may be configured...
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US20090067459 |
ILLUMINATION LIGHT SOURCE DEVICE AND LASER PROJECTION DEVICE
An illumination light source is provided with a laser light source having a laser medium with a specified gain region, and a reflector having a narrow band reflection characteristic. A part of a...
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US20090052488 |
QUANTUM CASCADE LASER ELEMENT
A DFB quantum cascade laser element that can reliably CW-oscillate a single-mode light even at room temperature or a temperature in proximity thereof is provided. In a quantum cascade laser element...
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US20090034576 |
LINEWIDTH-NARROWED EXCIMER LASER CAVITY
A double-grating excimer laser cavity is disclosed which includes a first multilayer dielectric diffraction grating comprised of a dielectric stack having a plurality of continuous layers with...
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US20090010295 |
Distributed Feedback Semiconductor Laser Based on Reconstruction-Equivalent-Chirp Technology and the Manufacture Method of the Same
Using sampled Bragg grating structure, the present invention proposes a distributed feedback (DFB) semiconductor laser based on reconstruction-equivalent-chirp technology. Namely, the Bragg grating...
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US20090010298 |
TWO-DIMENSIONAL PHOTONIC CRYSTAL SURFACE-EMITTING LASER
A two-dimensional photonic crystal formed by arranging in a lattice pattern a medium having a refractive index different from that of a medium layer formed near an active layer. The two-dimensional...
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US20080205476 |
HIGH EFFICIENCY PARTIAL DISTRIBUTED FEEDBACK (p-DFB) LASER
A second-order multi-mode partial distributed feedback (p-DFB) laser having increased electrical-to-optical power conversion efficiency, stabilized wavelength and narrowed emission linewidth. The...
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US20080192794 |
Lateral-Bragg-Grating-Surface-Emitting Laser/Amplifier (LBGSE)
A traveling-wave, surface-emitting-optical-waveguide amplifier uses Bragg gratings to provide both confinement in the lateral direction and couple light out of the waveguide plane. The grating...
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US20080165821 |
Laser resonator comprising an internal beam splitter
A simple and compact laser resonator is proposed which makes it possible to symmetrically operate a gain medium, preferably a semiconductor, which possesses more than one channel of emission. As a...
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US20080137694 |
SELF-PULSATING LASER DIODE
Provided is a self-pulsating laser diode including: a distributed feedback (DFB) section serving as a reflector; a gain section connected to the DFB section and having an as-cleaved facet at one...
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