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Class 372/50.21 - Having photodetection means


Subclass of Class 372 - Coherent light generators
Definition: Subject matter including a device for monitoring a light
No. of patents: 147
Last issue date: 03/06/2012


1        
NumberTitleIssue Date
8130809Optoelectronic device having light source emitter and receiver integrated
An optoelectronic device is provided. A light source emitter and a light source receiver are integrated in the device. The light source emitter is a Zn-diffused vertical cavity surface-emitting laser (VCSEL). The light source receiver is a uni-traveling-carrier phot...
03/06/2012
8081671Optoelectronic device and method of operating optoelectronic device
The invention provides an optoelectronic device combining a vertical cavity surface emitting laser (VCSEL) and a photodetector for monitoring the output power of the vertical cavity surface emitting laser. To improve the signal-to-noise ratio of the photodetector, a...
12/20/2011
7961770Optoelectronic module with integrated monitoring photodiode array for a parallel optical transmitter
A power monitoring system uses a low loss reflective element to partially split the output laser beams from an array of laser sources, in a parallel configuration, to produce a monitor beams for each laser source. Each of these monitor beams may propagate within the...
06/14/2011
7957448Optoelectronic circuit with a photoreceptor and a laser diode, and module comprising the same
The optoelectronic circuit includes a photoreceptor (1) made in a silicon semiconductor substrate (4), and a monomode VCSEL laser diode (2) made in a gallium arsenide substrate. The photoreceptor includes at least one photosensitive area with a ...
06/07/2011
7873092Laser diode
The present invention provides a laser diode realizing improved light detection precision. The laser diode includes a stack structure in which a first semiconductor layer of a first conduction type, an active layer, and a second semiconductor layer of a second condu...
01/18/2011
7804875Vertical cavity surface emitting laser module having monitoring photodiode and method of fabricating the same
Provided are a vertical cavity surface emitting laser (VCSEL) module providing accurate alignment between a VCSEL and a monitoring photodiode (MPD) for efficiently detecting light emitted by the VCSEL and a method of fabricating the VCSEL module. The VCSEL module in...
09/28/2010
7801199Vertical cavity surface emitting laser with photodiode having reduced spontaneous emissions
An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirro...
09/21/2010
7782921Integrated optical detector in semiconductor reflector
An electrical-optical coupling and detecting device. An apparatus according to an embodiment of the present invention includes a reflective surface defined on semiconductor material. The reflective surface is to reflect an incident optical beam towards an optical de...
08/24/2010
7680172Laser diode device
A laser diode device capable of detecting laser light with a simple structure is provided. A laser diode device, includes a semiconductor layer formed through laminating a first conductive type layer, an active layer and a second conductive type layer in this order,...
03/16/2010
7675957Laser and monitoring photodetector with polymer light guide
A surface emitting laser (100) and a monitoring photodetector (MPD) 158 are mounted in a TO (transistor outline package) can (150) on the same plane as one another. Light from a rear facet (108) of the laser is directed to the MPD through...
03/09/2010
7656926Optical connection device and method of fabricating the same
Provided is an optical connection device and a method of fabricating the same. The optical connection device includes a laser diode formed on a substrate, a photodiode that is formed on the laser diode and has an aperture which is an exit of light emitted from the l...
02/02/2010
7620090Semiconductor 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 signal laser light and a monitoring output section that emits monitoring l...
11/17/2009
7418025Wavelength monitoring method and apparatus and method of making same
A wavelength of an optical source is monitored by first and second adjacent detectors on a common base. A bulk reflective component has first and second partially reflective surfaces that respectively direct first and second portions of energy from the source to the...
08/26/2008
7418021Optical apertures for reducing spontaneous emissions in photodiodes
An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirro...
08/26/2008
7403553Absorbing layers for reduced spontaneous emission effects in an integrated photodiode
An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirro...
07/22/2008
7401986Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit
Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical si...
07/22/2008
7366217Optimizing mirror reflectivity for reducing spontaneous emissions in photodiodes
An optical structure that reduces the effects of spontaneous emissions from the active region of a laser. An optical structure includes optimizations to reduce the effects of spontaneous emissions. The optical structure includes a VCSEL with top and bottom DBR mirro...
04/29/2008
7352923Bidirectional photonic integrated circuit-based subsystem
A reconfigurable intelligent subsystem may include a bidirectional photonic integrated circuit. The bidirectional photonic integrated circuit may include a distributed reflector (DR) laser or a distributed feedback laser (DFB) that emits light of a first wavelength,...
04/01/2008
7343059Photonic interconnect system
A photonic interconnect system avoids high capacitance electric interconnects by using optical signals to communicate data between devices. The system can provide massively parallel information output by mapping logical addresses to frequency bands, so that modulati...
03/11/2008
7343061Integrated photonic amplifier and detector
An asymmetric twin waveguide (ATG) structure with an integrated amplifier and detector fabricated in a single active waveguide layer is disclosed. The structure comprises an active waveguide layer formed on a passive waveguide layer. The active and passive waveguide...
03/11/2008
7339970Surface light emitting element, optical module, light transmission device
To provide a surface light emitting element capable of maintaining characteristics of the surface light emitting element and accurately detecting emitted light. A surface light emitting element includes a light emitting element part, provided on a semiconductor subs...
03/04/2008
7339971Optical element and optical module
An optical element comprising: a surface-emitting type semiconductor laser having an emission surface; and a photodetector element formed above the emission surface of the surface-emitting type semiconductor laser, wherein the photodetector element includes a semico...
03/04/2008
7335922Radiation-emitting-and-receiving semiconductor chip and method for producing such a semiconductor chip
A radiation-emitting-and-receiving semiconductor component has at least a first semiconductor layer construction (1) for emitting radiation and a second semiconductor layer construction (2) for receiving radiation, which are arranged in a manner spaced...
02/26/2008
7333684Stack-integrated package of optical transceiver for single core full duplex fiber communications
This invention relates to a novel stack-integration package of a light emitter and a photodetector in a high speed, full duplex optical transceiver for fiber communications. The structure is comprised of a photodetector chip, having an isolated micromachined cavity ...
02/19/2008
7330495Vertical cavity surface emitting laser diode having a high reflective distributed Bragg reflector
The present invention is to provide a vertical cavity surface emitting laser diode (VCSEL) that has a functional distributed Bragg reflector (DBR) comprised of less number of pairs of reflective layers. The VCSEL of the invention include a lower DBR, an upper DBR an...
02/12/2008
7324574Long wavelength vertical cavity surface emitting laser with monolithically grown photodetector
A long wavelength vertical cavity surface emitting laser (VCSEL) with a monolithically-grown photodetector is provided. The photodetector is installed in a middle portion of or on a bottom surface of a lower distributed Bragg reflector of the long wavelength VCSEL. ...
01/29/2008
7312508Optical element, and its manufacturing method
To provide an optical element including a surface-emitting type semiconductor laser and an photodetector element, having a desired plurality of dielectric layers, and its manufacturing method. An optical element in accordance with the present invention includes a su...
12/25/2007
7313158Integrated high speed modulator for grating-outcoupled surface emitting lasers
A single-mode grating-outcoupled surface emitting (GSE) semiconductor laser architecture is provided. This architecture enables high speed modulation of the GSE laser, which is accomplished by only varying the relative phase of counter propagating waves in the outco...
12/25/2007
7310363Integrated wavelength tunable single and two-stage all-optical wavelength converter
A semiconductor tunable laser (10) and an interferometer (12) coupled to the tunable laser (10) are monolithically fabricated in a semiconductor heterostructure. The laser also comprises a buried ridge stripe waveguide laser. The interferometer ...
12/18/2007
7309884Semiconductor light receiving device and method of fabricating the same
A semiconductor light receiving device is disclosed which is capable of receiving a first wavelength band light beam and a second wavelength band light beam having a shorter wavelength than that of the first wavelength band light beam. The device has a light absorbi...
12/18/2007
7309169Single-channel communication device for optical fibre
The field of the invention is that of fiber-optic communication devices known as transceivers, used in the aeronautical field for ensuring that on-board electronic computers can converse with one another, or in civil telecommunication. The subject of the inve...
12/18/2007
7289547Laser and detector device
A detector is disposed on the passive side of a laser to detect photon leakage through the passive side mirror and measure as current created in the detector via a Schottky contact. ...
10/30/2007
7286767Optical transceiver over single communication link
A method, apparatus, and system for optical communications. An optical transmit signal is generated in response to an electrical transmit signal. The optical transmit signal is coupled into a single communication link for transmission there over. An optical receive ...
10/23/2007
7286586Semiconductor integrated circuit having a surface-emitting laser, manufacturing method of the same, and electronic equipment
A semiconductor integrated circuit is provided having a surface-emitting laser that makes it possible to precisely monitor the amount of light emitted by the surface-emitting laser for a long period of time, to be miniaturized, and to be easily manufactured. A metho...
10/23/2007
7286581Self-monitoring light emitting apparatus
A self-monitoring light source is provided. The self-monitoring light source includes a light source that generates light and a light monitor that receives a portion of the generated light. The light source and the light monitor are manufactured on the same semicond...
10/23/2007
7280573Semiconductor laser unit and optical pickup device
The semiconductor laser unit includes: a metal plate having a center portion wider than the remaining portions; a flexible substrate having a first opening; a substrate mounted on the center portion; a semiconductor laser placed on the substrate; a frame having a se...
10/09/2007
7277463Integrated light emitting device and photodiode with ohmic contact
Optoelectronic device including integrated light emitting device and photodiode. The optoelectronic device includes a light emitting, device such as a vertical cavity surface emitting laser (VCSEL) or resonant cavity light emitting diode (RCLED). A photodiode is als...
10/02/2007
7274882Method and apparatus for monitoring the power level of two or more optical transmitters
Methods and apparatus for monitoring the power level of one or more optical emitters are provided. In some embodiments, optical signals from two or more optical emitters are directed at different regions of a photo detector. The photo detector may include two or mor...
09/25/2007
7270490Laser package with digital electronic interface
Optical transmission components, systems, and packages where the package includes a common housing containing a laser for transmission of an optical signal, a photodetector optically coupled to the laser for monitoring the laser transmission, and a laser driver elec...
09/18/2007
7265439Low cost, high speed, high efficiency infrared transceiver
An inventive transceiver includes a transmitter for outputting plural beams of electromagnetic energy. In the illustrative embodiment, the transmitter is a vertical cavity surface emitting laser. Plural beams output by the transmitter are directed to the detector by...
09/04/2007
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