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WO/2010/003179A1 |
The present disclosure provides a method of fabricating a material. The material comprises first and second material components. The method comprises the steps of providing a source of a first material component. Further, the method comp...
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WO/2009/146561A1 |
A terahertz radiation transmission and detection system includes a dual mode light source operable in a continuous wave mode and in a pulsed wave mode, wherein the dual mode light source is configured for generating a continuous wave lig...
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WO/2008/093448A9 |
A wavelength scanning light source comprises a wavelength scanning laser light source (10) outputting laser light scanning the wavelength temporally by varying the resonator length of at least one of two Fabry-Perot resonators (13A, 13B)...
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WO/2009/131117A1 |
A first laser beam (1a) and a second laser beam (1b) are introduced into a differential frequency mixing unit so that the two laser beams are overlapped in the differential frequency mixing unit, thereby producing terahertz waves using t...
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WO/2009/104396A1 |
Provided is a versatile optical code division multiplexing access system (OCDMA). An optical code division multiplexing access system (5) comprises a center station (2) including a multiport optical encoder (1) and a decoding unit (4) in...
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WO/2009/104758A1 |
It is possible to realize a highly effective optical OFDM receiver. Provided is a subcarrier separation circuit which receives an optical OFDM signal formed by two subcarriers A and B and separates subcarrier components. A reception sign...
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WO/2009/088089A1 |
There is provided a demodulation circuit for multi-value differential phase modulation signal that resolves a polarization dependency due to birefringence caused by a waveguide structure and polarization-coupled light, and a polarization...
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WO/2009/081014A2 |
The invention relates to a wall-opening apparatus that comprises a diversion means for diverting the light flowing therethrough, and a light-energy conversion material that intensifies the light in the visible spectrum.
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WO/2009/022361A1 |
Disclosed herein is an optical frequency shifter (1) provided with: an electro-optical substrate (3) having a main surface (3a); an optical waveguide structure (2) formed in the substrate (3) and having two waveguide portions (7), which ...
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WO/2009/004682A1 |
An optical reception circuit (100) for receiving and demodulating a phase-modulated and wavelength-multiplexed optic signal. A demodulator (110) causes a reference signal for phase comparison and the received optic signal to interfere wi...
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WO/2009/006634A1 |
The present invention relates to a composition having a first response to a first electromagnetic radiation and, after intermediate exposure to a second electromagnetic radiation, a second response to the first electromagnetic radiation,...
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WO/2008/129492A2 |
A method and device for establishing a direct phase relation between an optical field and a radiofrequency field starting from a continuous wave optical radiation of frequency v L, wherein; - a first optical beam of the given radiation o...
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WO/2008/096580A1 |
Disclosed is a highly reliable small-sized thin microdevice having a simple structure, which is improved in productivity. Also disclosed is a method for manufacturing such a microdevice. Specifically, by forming a silicon oil convex port...
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WO/2008/046147A1 |
A luminance converter comprises layers of organised, crystalline semiconductor material quantum dots which are formed within the respective layers with size and location determined by parameters of said layer. Quantum dot energy gaps are...
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WO/2008/029455A1 |
A method for generating a multiplied signal easily at high speed and a device for realizing the method are provided. The multiplied signal generating method comprises a step (step 1) for suppressing an optical signal having a parity diff...
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WO/2008/027151A2 |
Quasi-phasematching design to provide an approximation to a desired spectral amplitude response A(f) (102) is provided. An initial phase response ? (f) corresponding to A(f) (104) is generated. Preferably, d2 ? (f)/df2 is proportional to...
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WO/2008/024458A2 |
A wavelength converter includes an optical resonator that is optically coupled to a waveguide. The refractive index of the optical resonator is dynamically changed, such as by injecting free carriers into the resonator. This effectively ...
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WO/2008/007615A1 |
A synchronized optical signal generation device includes: optical phase detection means which compares the phase of a reference optical signal and the phase of a beat optical signal and generates a phase error signal; rectifying means wh...
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WO/2007/148413A1 |
It is an object to provide an optical frequency control device or the like which can quickly carry out control over a wide frequency range. The object is achieved by an optical frequency control device or the like comprised of an optical...
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WO/2007/132503A1 |
An optical electric field receiver comprises an optical brancher that branches a received optical multilevel signal into first and second optical signals; a first optical delay detector that delay detects the first optical signal at a de...
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WO/2007/129993A1 |
A WDM based sensor system, a method of interrogating a plurality of sensor elements, and a WDM based sensor interrogation system. The WDM based sensor system comprises a WDM MUX/DEMUX element for demultiplexing an optical input signal in...
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WO/2007/121580A1 |
A device for generating a frequency converted laser beam includes a nonlinear crystal having a first end face and a second end face opposed to the first end face. The nonlinear crystal is configured to receive at least one input laser be...
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WO/2007/119449A1 |
Provided is an optical frequency comb generator capable of obtaining an optical comb having a preferable S/N. A pulse laser beam outputted when a laser light source (10) performs mode-synchronized laser oscillation is optically amplified...
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WO/2007/108148A1 |
An optical frequency COM generator generating an optical frequency COM having flat spectrum characteristics using a single modulator. The optical frequency COM generator has a drive signal system (11) and a bias signal system (14) which ...
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WO/2007/036988A1 |
A light division device (100) includes a light amplification unit (101) for amplifying an optical signal multiplexed by a light multiplex device and a branching unit (102) for branching the amplified optical signal. The branched optical ...
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WO/2007/018240A1 |
[PROBLEMS] An optical reciprocating multiplying/modulating system capable of providing a broad bandwidth. [MEANS OF SOLVING PROBLEMS] The optical reciprocating multiplying/modulating system (1) basically comprises an optical modulator (2...
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WO/2007/015865A1 |
A generator of duality modulated radiation (10), of which the irradiance, the wave intensity, or both, are varied from ordinarily equivalent levels, either for purposes of providing energy depleted or energy enriched radiation or for pur...
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WO/2007/004338A1 |
There is provided a clock signal extraction device capable of coping with a high-speed optical signal with a simple configuration. A π-phase shift fiber Bragg grating (π-phase shift FBG) (10) is adjusted so that a reflected light wave ...
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WO/2006/120281A1 |
The signal processing device (100) comprises a light source (50) to emit light (SEMIT) at a wavelength which is substantially equal to the carrier wavelength (&lgr 0) of an optical input signal (SIN), an optical resonator (10) to provide...
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WO/2006/096534A1 |
According to the present invention, electrooptic modulators are configured to form one or more Bragg-grating modulators, which are in turn configured to control and direct light in imaging systems, exposure systems, laser printers, or ot...
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WO/2006/092038A1 |
An all-fiber, phase controlled interferometer device is disclosed as well as its method of manufacture. This device is suitable for use in an optical DPSK demodulation system. It is comprised of two optical fiber couplers, each having tw...
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WO/2006/093265A1 |
A method for generating terahertz electromagnetic wave by using coherent phonons in a quantum structure in which coherent phonons being a terahertz electromagnetic wave generation source are generated on condition that the energy of phon...
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WO/2006/084086A2 |
An optical tapped delay line device in accordance with the present invention is a method for and device for spatially resolving the spectral components of an optical signal, i.e., channelizing or spectrum analyzing the wavelength content...
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WO/2006/077321A1 |
The invention relates to the conversion of wavelengths, particularly for telecommunications applications, from an electroabsorption modulator (MEA) comprising: two inputs for respectively receiving a pump signal (SP) modulated to a first...
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WO/2006/070456A1 |
An optical reception device realizes stabilization of reception sensitivity inexpensively and highly precisely. The optical reception device comprises a Mach-Zehnder type 1-bit delay unit including a one-terminal input port and two-termi...
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WO/2006/059963A1 |
A ring cavity laser (20) has at least two facets (32,34) and a mechanism is provided to produce unidirectional propagation and light emission at a first wavelength. A source of laser light (60) at a second wavelength is injected into the...
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WO/2006/046435A1 |
There is provided an optical/electric clock signal extraction device capable of simultaneously and directly extracting optical and electric clock signal from optical data signal having deteriorated waveform. The optical/electric clock si...
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WO/2006/041103A1 |
A lock detector for detecting lock of an optical phase locked-loop device. The lock detector comprises a first phase detector for comparing the phases of an input optical signal and a beat optical signal and outputting a first phase comp...
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WO/2006/011262A1 |
In an optical signal amplifying three-terminal device (10), both a portion of an ambient light (LS) of a wave length different from a first wavelength (&lgr 1), which is selected by an optical add/drop filter (16) from output lights comi...
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WO/2006/009271A1 |
There is provided a multi-wavelength signal generation device capable of generating light having a plenty of wavelengths and a multi-wavelength light generation method using the multi-wavelength signal generation device. The multi-wavele...
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WO/2006/004133A1 |
A multiple wavelength light source capable of generating a light with a larger number of wavelengths, and a generation method for a multiple wavelength light using the multiple wavelength light source. The multiple wavelength light sourc...
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WO/2005/116521A1 |
The present invention provides a luminance enhancement apparatus and method for use with light-emitting elements comprising a conversion system adjacent the light-emitting element for converting electromagnetic radiation of one or more w...
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WO/2005/109089A1 |
A wavelength conversion system of an input signal (SI) to be shifted to a desired wavelength comprises means (18, 19) for acquiring said input signal and means (3, 4) for coupling said input signal (SI) to a first ‘pump’ carrier sign...
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WO/2005/103798A2 |
An apparatus including an impedance matching circuit (80, 90 in figure 11) , a biasing circuit (45 in figure 11) , and a number of serially connected optically controlled current sources (80, 90 in figure 11) for detecting amplitude-modu...
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WO/2005/101102A1 |
An optical resonator includes: resonating means having a coming-in side reflection film (93) and a going-out side reflection film (94) which are arranged parallel to each other and resonating the light coming via the coming-in side refle...
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WO/2005/088389A1 |
An optical modulator includes a crystal structure that exhibits polaritonic or excitonic behavior. A shock wave propagates through the crystal structure so as to corehently generate, convert or modulate electomagnetic radiation from the ...
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WO/2005/088784A1 |
The invention relates to a waveguide structure for upconversion of IR wavelength laser radiation and is characterized in comprising a) at least one base substrate layer made essentially out of a moisture-stable mechanically- and/or tempe...
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WO/2005/086390A1 |
An optical modulation converter (10) for converting the modulation format of an optical input signal is characterized by a birefringent medium (14), polarization maintaining fibre, with a selected differential group delay between its two...
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WO/2005/083505A1 |
The present invention provides an apparatus for effectively coupling optical power between two waveguides to encourage the generation of nonlinear optical effects for frequency conversion. A first waveguide in the optical device defines ...
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WO/2005/083915A1 |
In a radio optical fusion communication system combining an optical fiber transmission path with a radio transmission path, a base station uses a first light and a second optical source, intermediate-frequency band signal generation mean...
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