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7636378 |
Semiconductor laser diode
In an edge emitting laser having a window region with a ridge-waveguide structure, particularly, in a short cavity type of a laser operated with a low current, there has been a problem of its...
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7633988 |
Tunable laser source with monolithically integrated interferometric optical modulator
A monolithically-integrated semiconductor optical transmitter that can index tune to any transmission wavelength in a given range, wherein the range is larger than that achievable by the maximum...
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7627012 |
Distributed feedback semiconductor laser including wavelength monitoring section
In general, a complex-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 complex-coupled...
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7620089 |
Surface-emitting type semiconductor laser
A surface-emitting type semiconductor laser includes: a lower mirror; an active layer formed above the lower mirror; and an upper mirror formed above the active layer, wherein the upper mirror...
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7620087 |
Radiation-emitting semiconductor component
A radiation-emitting semiconductor component comprising a semiconductor body ( 3 ) with a first active zone ( 1 ) and a second active zone ( 2 ) arranged above the first active zone, the first...
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7620090 |
Semiconductor laser device
A semiconductor laser device includes a supporting substrate having a wiring pattern thereon; LD fixed on the surface of the supporting substrate and having a signal output section that emits...
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7613220 |
Two-wavelength semiconductor laser device and method for fabricating the same
A first and second semiconductor laser, which comprise buffer layers, cladding layers, quantum well active layers, and cladding layers integrated on the substrate and have a stripe geometry, are...
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7613219 |
Semiconductor devices having self aligned semiconductor mesas and contact layers
Methods of forming a semiconductor device can include forming a semiconductor structure on a substrate, the semiconductor structure having mesa sidewalls and a mesa surface opposite the substrate....
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7613215 |
High efficiency second harmonic generation vertical external cavity surface emitting laser
A vertical external cavity surface emitting laser (VECSEL) in which the full-width at half maximum (FWHM) of laser light is reduced by two etalon filter layers to improve the efficiency of second...
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7609919 |
Coupling-enhanced surface etched gratings
The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has...
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7601985 |
Semiconductor light-emitting device
A semiconductor light-emitting device includes: a substrate; a first conductivity type layer formed on the substrate and including a plurality of group III-V nitride semiconductor layers of a first...
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7602831 |
Semiconductor laser device having an insulation region
A semiconductor laser device includes a substrate having a first surface and a second surface opposite to the first surface, an active region formed on the second surface of the substrate, a...
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7598527 |
Monitoring photodetector for integrated photonic devices
A laser and detector integrated on corresponding epitaxial layers of a single chip cooperate with on-chip and/or external optics to couple light of a first wavelength emitted by the laser to a...
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7593445 |
Semiconductor optical device and optical transmission module
A semiconductor optical device has a semiconductor laser portion and a modulator portion which have different mesa structures. The mesa structure of the semiconductor laser portion is a ridge...
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7592632 |
Light emitting device and display device using the same
A small-sized and high-efficiency light emitting device capable of easily emitting green light includes a resonator including a photonic crystal having a refractive-index periodic structure and a...
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7593446 |
Single-mode distributed feedback semiconductor lasers
The present invention relates to the field of distributed feedback semiconductor lasers. More specifically, the invention makes it possible to develop single-mode distributed feedback lasers with a...
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7593444 |
Integration of laser sources and detectors for a passive optical network
Various methods and apparatuses are described in which an array of optical gain mediums capable of lasing are contained in a single integral unit. The array may contain four or more optical gain...
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7590159 |
Surface-emission laser diode operable in the wavelength band of 1.1-1.7 micrometers and optical telecommunication system using such a laser diode
A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 μm or longer, wherein the distributed Bragg reflector includes an alternate repetition of a...
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7580435 |
Laser diode, optical pickup device, optical disk apparatus, and optical communications equipment
A laser diode capable of reducing a radiating angle θ⊥ in the vertical direction, an optical pickup device, an optical disk apparatus, and optical communications equipment, all equipped with the...
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7573074 |
LED electrode
An electrode structure is disclosed for enhancing the brightness and/or efficiency of an LED. The electrode structure can have a metal electrode and an optically transmissive thick dielectric...
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7569860 |
Integrated photonic devices
A laser ( 22 ) and detector ( 24 ) integrated on corresponding epitaxial layers of a single chip ( 20 ) cooperate with on-chip and/or external optics ( 62 ) to couple light of a first wavelength...
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7570845 |
Deployment of electro-optic amplitude varying elements (AVEs) and electro-optic multi-functional elements (MFEs) in photonic integrated circuits (PICs)
Electro-optic amplitude varying elements (AVEs) or electro-optic multi-function elements (MFEs) are integrated into signal channels of photonic integrated circuits (PICs) or at the output of such...
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7570681 |
Multisectional laser
Disclosed is a semiconductor laser ( 10 ) in which the substrate ( 11 ) comprises at least three independent functional sections ( 17, 20, 23 ) in the direction of light wave propagation (A), said...
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7567597 |
Semiconductor device with a cooling element
A semiconductor device comprising a semiconductor component, particularly a power laser diode bar, disposed on a cooling element, wherein the cooling element contains in its interior a cooling...
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7567606 |
Strong distributed feedback semiconductor laser
The present invention relates to a strong distributed feedback semiconductor laser. More specifically, the invention implements a top optical waveguide ( 2 ) for semiconductor lasers having a...
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7567604 |
Optical device with integrated semi-conductor laser source and integrated optical isolator
The field of the invention is that of optical devices comprising an integrated semi-conductor laser and an integrated optical isolator. These devices are used mainly in the field of digital...
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7564890 |
Laser equipment
A laser equipment for outputting output lights having different wavelengths includes: a substrate; an excitation light generation element for emitting excitation lights including surface emitting...
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7564885 |
Integrated modulator-laser structure and a method of producing same
In an arrangement comprised of an electro-absorption modulator integrated with a laser source, the electro-absorption modulator includes a respective metal contact pad, wherein the metal pad is...
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7551660 |
Optically pumped semiconductor laser device
An optically pumped semiconductor laser apparatus. The apparatus includes a vertical emitter which has a central waveguide and a quantum well structure which is arranged within the central...
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7545841 |
Composite material with proximal gain medium
An apparatus and related methods are described, the apparatus comprising a composite material layer configured to exhibit at least one of a negative effective permittivity and a negative effective...
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7539230 |
Semiconductor laser device and method for fabricating the same
A semiconductor laser device includes a red-light-emission portion and an infrared-light-emission portion on a single substrate. The red-light-emission portion has a structure in which an...
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7532654 |
Laser diode
A laser diode capable of effectively inhibiting effects of return light is provided. A laser diode includes a substrate, and a laminated structure including a first conductive semiconductor layer,...
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7522648 |
Hybrid type integrated optical device
A hybrid type integrated optical device has a semiconductor laser mounted on a planar waveguide platform by flip-chip bonding. The optical device comprises a semiconductor laser and a planar...
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7518161 |
Semiconductor light-emitting device, surface-emission laser diode, and production apparatus thereof, production method, optical module and optical telecommunication system
A semiconductor light-emitting device has a semiconductor layer containing Al between a substrate and an active layer containing nitrogen, wherein Al and oxygen are removed from a growth chamber...
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7515624 |
Semiconductor laser, semiconductor laser driver and method of driving semiconductor laser reducing feedback-induced noise by modulated optical output
A semiconductor laser device has an active layer which is divided into two regions in the direction of a resonator, i.e., a light-amplifying region and a saturable absorber region. The...
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7512167 |
Integrated semiconductor laser device and method of fabricating the same
An integrated semiconductor laser device capable of improving the properties of a laser beam and reducing the cost for optical axis adjustment is provided. This integrated semiconductor laser...
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7512295 |
Transmitter photonic integrated circuits (TXPICS) with directly modulated lasers and wavelength selective combiners
A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other...
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7505502 |
Semiconductor laser device and manufacturing method thereof
In a monolithic dual-laser semiconductor laser device capable of high power output, a window structure for each of laser elements is formed through a common step, thereby improving the device...
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7502402 |
Integrated optical semiconductor device
A semiconductor laser device includes a semiconductor laser portion, a window layer structure portion, a first inter-element portion, and a pre-placed optical element portion on an InP substrate....
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7502541 |
Resonator, light emitting device, and wavelength conversion device
A resonator is provided which is produced by a defect formed in a three-dimensional photonic crystal. The three-dimensional photonic crystal can include layers containing a plurality of columnar...
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7502401 |
VCSEL system with transverse P/N junction
The present invention provides a VCSEL system comprising forming a first mirror, forming a vertical cavity on the first mirror, the vertical cavity including integrated multiple gain regions and...
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7489838 |
Optical transmitter
An optical transmitter comprises an array of modulated sources having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different...
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7486714 |
Pump laser integrated vertical external cavity surface emitting laser
Provided is a vertical external cavity surface emitting laser (VECSEL) in which a pump laser is integrated with the rest of the VECSEL as a single body. The VECSEL includes: a first active layer...
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7486712 |
Semiconductor laser apparatus, method of manufacturing semiconductor laser apparatus, and optical pickup apparatus
A monolithic red/infrared semiconductor laser device is joined to a blue-violet semiconductor laser device. The distance between a blue-violet emission point in the blue-violet semiconductor laser...
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7483464 |
Semiconductor laser apparatus and manufacturing method thereof
A semiconductor laser apparatus includes a substrate, a vertical-cavity surface-emitting semiconductor laser diode (VCSEL) including a first and second mirror layers of a first and second...
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7483468 |
Multiple wavelengths semiconductor laser device
In one aspect of the present invention, a multiple wavelengths semiconductor laser device may include a supporting member, a first semiconductor laser element provided on a first substrate, mounted...
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7477807 |
Monolithic transmitter photonic integrated circuit (TxPIC) semiconductor chip
A photonic integrated circuit (PIC) chip comprising an array of modulated sources, each providing a modulated signal output at a channel wavelength different from the channel wavelength of other...
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7477670 |
High power diode laser based source
A high power laser system including: a plurality of emitters each including a large area waveguide and a plurality of quantum well regions optically coupled to the large area waveguide, wherein...
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7477669 |
Semiconductor laser device and method of manufacturing the same
This invention provides a semiconductor laser device and method of manufacture with a small interval between light emitting points of laser lights. A first light emitting element having a...
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7460576 |
Semiconductor optical amplifier
A semiconductor optical amplifier according to the present invention comprises a lower cladding layer of a first conductive type, an upper cladding layer of a second conductive type, an active...
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