81 results about "Planar optical waveguide" patented technology

The invention discloses a lead zirconate titanate high-speed electro-optical modulator based on a heterogeneous integrated waveguide and a preparation method thereof, and belongs to the technical field of planar optical waveguide optical modulators and preparation thereof. The lead zirconate titanate solar cell is composed of a silicon substrate, a silicon dioxide oxide layer, an unetched lead zirconate titanate flat plate core layer, a polymer spacing layer, discrete electrodes and a polymer upper cladding layer in sequence. The polymer spacing layer and the polymer upper cladding layer are made of the same material. According to the invention, the lead zirconate titanate film is used as the waveguide core layer, the polymer spacing layer is directly spin-coated on the lead zirconate titanate film, etching of lead zirconate titanate is not needed, and the light field is limited in the waveguide core layer by controlling the spacing of the discrete electrodes deposited on the polymer spacing layer, so that the complexity of the process is obviously reduced, and the yield is improved. The electro-optic overlapping factor of the modulator is also improved, the advantage that the electro-optic coefficient of lead zirconate titanate is large is fully utilized, and the modulator manufactured through the technology further has the advantages of being high in heterogeneous integration capacity, high in modulation efficiency and the like and has wide application prospects in the aspects of meeting high-speed large-capacity data transmission and the like.

The present application discloses a method for heterogeneous hybrid integration of planar optical waveguide devices, relating to the field of integrated silicon photonics technology. The method is used for heterogeneous hybrid integration of PLC chips with greatly different waveguide characteristic dimensions in different material systems. The method first grinds the light-emitting end of the front-end chip at a large angle to form a reflection angle for the waveguide. The device surface of the front-end chip is then arranged relative to the device surface of the back-end chip so that the light emitted by the front-end chip can be reflected to the device surface of the back-end chip and aligned with the grating coupler on the device surface of the back-end chip. Finally, the aligned two chips are packaged to achieve optical interconnection between the two chips. When performing heterogeneous integration, the technical solution of the present application can directly align the light emitted by the front-end chip to the grating coupler of the back-end chip without considering the height difference between the two chips. This solves the problem of the existing end-face coupling technology being sensitive to the chip height difference and difficult coupling mode matching, and effectively improves the integration level of the discrete device optical network system.

A mode insensitive 2x2 thermo-optic switch for mode division multiplexing system belongs to the technical field of planar optical waveguide devices. It is composed of a silicon substrate, a silicon dioxide lower cladding layer, a polymer core layer waveguide and a polymer upper cladding layer. The polymer core layer waveguide is composed of a first input straight waveguide and a second input straight waveguide, a first input S curved waveguide and a second input S curved waveguide, a first coupling arm straight waveguide, a second coupling arm straight waveguide and a third coupling arm straight waveguide, a first output S curved waveguide and a second output curved waveguide, and a first output straight waveguide and a second output straight waveguide. A metal modulation electrode is prepared on the polymer upper cladding layer corresponding to the second coupling arm straight waveguide. The present application realizes the channel switching of LP 01 , LP 11a and LP 11b three modes by adjusting the spacing and coupling length of the coupling arm straight waveguide and whether to apply the modulation electrode, which has important significance in the field of mode division multiplexing applications.

The present invention relates to the field of optical fiber sensing technology, and more specifically to a MOMES and FBG fusion sensing system based on an adjustable laser array. A multi-wavelength tunable laser array light source is used to generate fast broadband frequency-sweeping laser light, which is split into M outputs via a multi-path planar optical waveguide splitter coupler. Each output end is connected to N FBG sensor arrays and one MOMES sensor, and the reflected light of the sensing signal is received by the corresponding photodetector. After data processing by a photoelectric converter, a logarithmic amplifier, an analog-to-digital converter, and an FPGA-compatible algorithm platform, the peaks and troughs of the reflected spectrum data at each wavelength point are simultaneously found. The peak data is used to demodulate the FBG sensor array, and the trough data is used to demodulate the MOMES sensor. The optical path structure and algorithm design of the system achieve synchronous demodulation of the FBG and MOMES sensors, significantly improving the system's compatibility and computational efficiency.

To realize more horizontal / vertical resolution points and higher frame rate than the conventional one.SOLUTION: A light beam deflector comprises: a wavelength variable semiconductor laser 1; a plane optical waveguide circuit 3 that splits light emitted from the wavelength variable semiconductor laser 1 into first number of beams same as the number of areas obtained by dividing an object space in a first direction, and emits the beams so as to select the emission position of the split beams in the first direction so that a position of one pixel in each corresponding area is irradiated with the beams; a dispersive element 5 that deflects the first number of beams emitted from the plane optical waveguide circuit 3 respectively at angles according to wavelengths of the beams in a plane parallel to a second direction perpendicular to the first direction; an optical system 6 that converts the first number of beams emitted from the dispersive element 5 to be parallel to an axis of the optical system; and an optical system 7 that deflects the first number of beams emitted from the optical system 6 to be emitted to the object space.SELECTED DRAWING: Figure 1

The application discloses a modulation-insensitive dual-mode waveguide optical switch and a preparation method thereof, and belongs to the technical field of planar optical waveguide devices. The switch is composed of a silicon wafer substrate, a polymer lower cladding layer, a polymer optical waveguide core layer and a polymer upper cladding layer from bottom to top, the polymer optical waveguide core layer is covered in the polymer upper cladding layer, and the refractive index of the polymer optical waveguide core layer is higher than that of the polymer upper cladding layer and the polymer lower cladding layer. The application utilizes the advantages of simple asymmetric directional coupling structure and asymmetric Y branch structure and the large thermal-optical coefficient of organic polymer materials, and realizes the modulation-insensitive switch of two signal optical modes through mode conversion by using the asymmetric Y branch when the heating electrode is modulated. The preparation process of the application is simple, only needs spin coating, photoetching and wet etching, effectively reduces the production cost, improves the production efficiency of the device, is favorable for large-scale batch production, and enables the mode signal optical switch to be applied to actual use.

The invention provides a tunable external cavity laser chip and a preparation method thereof, and relates to the technical field of lasers, the chip comprises a planar optical waveguide loop and a gain chip; a narrow-band transmission peak of a micro-ring resonator and an interference passband of a multi-channel interference module are preliminarily aligned through a phase shifter array and a first micro-ring phase shifter in a planar optical waveguide loop, and selection of a lasing working point is completed; and the common phase shifter and the second micro-ring phase shifter are used for cooperative driving, laser frequency sweeping is carried out on the basis of preliminary alignment, and accurate alignment of a narrow-band transmission peak and an external cavity longitudinal mode is maintained in the whole frequency sweeping process. Through cooperative driving of the common phase shifter and the micro-ring phase shifter, the sweep frequency bandwidth of the laser is increased, and frequent mode hopping of output laser in the tuning process is avoided; meanwhile, the periodic alignment reflection phenomenon in a reflection spectrum is avoided, the utilization rate of the gain interval of the semiconductor gain chip is greatly improved, and a larger tuning range is obtained under the condition that the quality of light beams is kept unchanged.

The application discloses a flexible planar light waveguide device and a preparation method thereof, and relates to the technical field of optoelectronic materials and devices. Technical points are as follows: the device provided by the application comprises a flexible substrate, a core layer and an upper cladding layer, and the core layer is a CuI film; a waveguide topological structure for optical signal transmission is formed on the substrate; the CuI film has a cubic zinc blende crystal structure; the average absorption rate of the CuI film in a 0.4-30 mu m wide spectral range is less than 10%; and the refractive index of the CuI film is 2.2-2.5. The transmittance attenuation of the CuI film is less than 2% after the CuI film is bent at a bending radius of 5 mm and is bent 5000 times, and the CuI film exhibits excellent flexibility and optical performance. The method is simple in process, low in cost and suitable for large-scale production. The application solves the problems of narrow light transmission range and poor flexibility of traditional optical waveguide materials, is suitable for flexible optoelectronic device applications in the visible light to mid-infrared waveband, and has a wide market prospect.

The invention discloses a vernier effect-based high-sensitivity polymer micro-ring temperature and humidity optical waveguide sensor, and belongs to the technical field of planar optical waveguide integrated devices. The polymer electrolyte consists of a substrate layer, a polymer lower cladding, a polymer grooving layer, a polymer electrolyte core layer and a polymer upper cladding. The polymer electrolyte core layer is of a runway type MRR cascaded optical waveguide structure and is composed of a reference ring, a temperature sensing ring and a humidity sensing ring, a polymer electrolyte core layer material can adsorb water molecules in air, the free ion concentration can change along with the change of humidity and temperature, and then the refractive index of the material changes; the temperature and humidity dual-mode sensing device overcomes the defects of integration level, sensitivity and interference resistance of an existing temperature and humidity sensing device, ultra-compact and ultra-high-sensitivity temperature and humidity dual-mode sensing is achieved, the optical waveguide device is made of polymer materials, and the temperature and humidity dual-mode sensing device has the remarkable advantages of being good in flexibility, simple in process, low in cost, high in efficiency and the like. The method is suitable for various scenes requiring precise environment control or real-time monitoring of tiny changes.

To provide systems and methods for mixed reality.SOLUTION: A virtual image generation system comprises: a planar optical waveguide having opposing first and second faces; an in-coupling (IC) element configured for optically coupling a collimated light beam from an image projection assembly into the planar optical waveguide as an in-coupled light beam; a first orthogonal pupil expansion (OPE) element associated with the first face of the planar optical waveguide for splitting the in-coupled light beam into a first set of orthogonal light beamlets; a second orthogonal pupil expansion (OPE) element associated with the second face of the planar optical waveguide for splitting the in-coupled light beam into a second set of orthogonal light beamlets; and an exit pupil expansion (EPE) element associated with the planar optical waveguide for splitting the first and second sets of orthogonal light beamlets into an array of out-coupled light beamlets that exit the planar optical waveguide.SELECTED DRAWING: Figure 44

The invention belongs to the technical field of oil reservoir microorganisms, and particularly relates to a zoococcus strain and application thereof. The bacterial strain is a Planococcus sp. Bacterial strain WL-9, and is a new strain of the Planococcus sp. The strain is separated from an oil reservoir source, can reduce interfacial tension between crude oil and water, plays a role in emulsifying the crude oil, is good in oil reservoir adaptability, and can convert the crude oil into methane in an extreme environment of the oil reservoir and in the presence of CO2. The invention provides a new high-quality strain resource for microbial oil recovery, and has great significance for improving the oil recovery rate, reducing carbon emission by CCUS microbial carbon conversion and treating and repairing petroleum pollution.

The invention relates to a 2.5 D optical waveguide chip and a preparation method and an application device thereof, and belongs to the technical field of integrated photoelectron and optical fiber communication. Aiming at the technical problems that an existing 3D optical waveguide based on a laser direct writing process cannot be manufactured at a wafer level, the production efficiency is low and the cost is high, the invention provides a 2.5 D optical waveguide chip which comprises a substrate and at least two layers of planar optical waveguides which are isolated by a cladding material and each layer is limited to extend in a plane of the planar optical waveguide; the waveguide distribution of the light inlet end face of the chip is matched with the fiber core distribution of the target multi-core optical fiber for coupling alignment, the waveguides of the light outlet end face of the chip are distributed in a step shape, and the waveguides located on different layers have different heights so as to be coupled and aligned with the corresponding optical fiber array distributed in the step shape. The chip is suitable for wafer-level batch manufacturing and is mainly used for forming core optical devices such as a multi-core optical fiber fan-in and fan-out assembly, a multi-core optical fiber optical receiver and a multi-core optical fiber optical transmitter.

The invention discloses a high-speed electro-optical modulator based on a heterogeneous integrated waveguide and a preparation method thereof, and belongs to the technical field of planar optical waveguide optical modulators and preparation thereof. The sensor is composed of a silicon substrate, a silicon dioxide oxide layer, a lead zirconate titanate flat plate layer, a polymer flat plate layer, a first grounding electrode, a signal electrode, a second grounding electrode and a polymer strip-shaped layer from bottom to top in sequence. The polymer strip-shaped layer and the polymer flat plate layer are made of the same material, and the refractive index of the polymer strip-shaped layer is lower than that of the lead zirconate titanate flat plate layer. The polymer flat plate layer prevents direct contact between lead zirconate titanate and the electrode, so that the loss of the modulator is greatly reduced. When an electric field is externally applied, the electric field is uniformly distributed between the signal electrode and the grounding electrode, and the thickness of the polymer flat plate layer and the size of the polymer strip-shaped layer are designed, so that more light fields are controlled in the lead zirconate titanate flat plate layer, and the electro-optical modulation efficiency is further improved. The manufacturing process is simplified, and the method has the advantages of low production cost, high efficiency and the like.

A multi-waveguide illumination panel has a base sheet with a front surface and an opposing back surface. A plurality of planar optical waveguides is attached to the back surface at distinct locations. Each planar optical waveguide is optically coupled at an edge to a LED source. Light extraction structures are formed in or on a surface of each planar optical waveguide and configured to emit light towards the base sheet. The light extraction structures associated with a first planar optical waveguide define a first two-dimensional pattern, and the light extraction structures associated with a second planar optical waveguide define a second two-dimensional pattern different from the first. The LED sources may be individually controllable. Optional elements include reflective layers covering back surfaces of the waveguides, diffusive layers covering front surfaces of the waveguides, opaque light control layers positioned near the LED sources, and an image print on the base sheet.

The application provides a device for two-dimensional spectrum spreading based on a planar optical waveguide. The device comprises: a light to be measured, a collimating system, an in-coupling grating, an out-coupling grating, a vertical grating, a waveguide and a detector, wherein the in-coupling grating and the out-coupling grating are symmetrically arranged inside the waveguide; the collimating system converts the light to be measured into parallel light; the parallel light enters the waveguide under the diffraction of the in-coupling grating and is transmitted inside the waveguide; the light is emitted from the waveguide under the action of an out-coupling grating with the same dispersion; a vertical grating in another direction is used to spread the light emitted from the waveguide in the vertical direction; the focused light reaches a light detector array to obtain a two-dimensional spectrum. The device combines the planar waveguide with the diffraction grating, maximally realizes the miniaturization of the spectrum, and can obtain high-resolution spectrum detection or a large spectrum detection range.

A planar optical waveguide device which has improved resistance to optical loss and improved stability of the entire system of balanced homodyne detection is realized. An embodiment is an optical waveguide device for measurement of squeezed light using balanced homodyne detection, including an amplifier circuit that is connected to a signal light input port for inputting the squeezed light and performs phase-sensitive amplification, and a multiplexing / demultiplexing circuit that is connected to a local oscillator optical input port and an output of the amplifier circuit, has local oscillator light and the amplified squeezed light incident on the circuit, and outputs the light interfering with each other to two output ports.

The invention discloses a high-symmetry large-bandwidth flexible array waveguide grating chip for a fiber bragg grating demodulation system, and belongs to the technical field of planar optical waveguide devices. The polymer optical waveguide is composed of a polymer flexible substrate layer, a polymer lower cladding layer, a polymer optical waveguide core layer and a polymer upper cladding layer, the refractive index of materials of the polymer upper cladding layer and the polymer lower cladding layer is lower than that of materials of the polymer optical waveguide core layer, and the polymer optical waveguide core layer is of an optical waveguide structure integrated by two AWGs and two MMI units. According to the invention, the defects of demodulation blind area and one-way transmission of the existing array waveguide grating in an FBG demodulation system are overcome, the wide dynamic range and high resolution demodulation of reflection wavelength are realized, the bidirectional signal input and output of left and right ports are supported, the system flexibility is improved, and in addition, the system performance is improved. Compared with an inorganic material system, the optical waveguide device prepared from a polymer material has the remarkable advantages of good flexibility, simple process, low cost, high efficiency and the like, and is suitable for a dynamic deformation environment or a biological integration scene.

The invention discloses a multi-channel optical engine with a customizable optical spacing. The multi-channel optical engine comprises collimated light used for emitting collimated parallel light beams; the Z-BLOCK multiplexer / demultiplexer is located at the downstream of a light path of the collimated light and is used for processing the incident collimated parallel light and outputting four collimated light beams with different wavelengths; the converging lens or the lens array is located at the downstream of the light path of the Z-BLOCK multiplexer / demultiplexer and is used for converging and shaping the beam diameters of the four collimated lights; the planar optical waveguide chip is located at the downstream of an optical path of the converging lens or the lens array and is used for receiving the shaped four light beams and accurately controlling the distance between the input light beams through an optical waveguide by virtue of a waveguide structure of the planar optical waveguide chip; and the output light array is output from the planar optical waveguide chip to form a four-channel parallel light array with target spacing. The invention further discloses application of the multi-channel optical engine capable of being customized according to the optical distance to an optical module. According to the invention, the defect that the space micro-optics optical engine output light beam spacing is fixed and cannot be customized and adjusted in the prior art is overcome.

The utility model relates to the technical field of planar optical waveguide splitters, and particularly discloses a planar waveguide type optical splitter, which comprises a shell, an optical splitter main body is fixed on one side in the shell and is connected with a plurality of tail fibers, a wire clamping mechanism is fixed at the position, close to the front end, in the shell, and the tail fibers are connected with the optical splitter main body. The multiple tail fibers are wound on the multiple layers of wire distributing plates, the wire clamping mechanism comprises a shell body, multiple notches are evenly formed in the upper end face of the shell body at intervals, wire clamps are fixed in the multiple notches, each wire clamp comprises a fixing base fixedly connected with the shell body, and the multiple layers of wire distributing plates are wound on the multiple layers of wire distributing plates. According to the utility model, the wire clamping mechanism and the plurality of layers of wire distributing plates are arranged, and the tail fibers can be fixed one by one through the wire clamps during installation, so that the tail fibers are prevented from being scattered, the corresponding tail fibers can be separated more quickly, and the subsequent maintenance efficiency is improved while the installation is facilitated.

A few-mode waveguide optical switch based on a total internal reflection structure and a preparation method thereof belong to the technical field of planar optical waveguide devices. It is composed of a silicon wafer substrate, a polymer lower cladding, a strip-shaped polymer optical waveguide core layer, a polymer upper cladding and a heating electrode. The core layer is composed of an input few-mode straight waveguide, an input bent waveguide, an input tapered waveguide, an input multimode straight waveguide, a first output multimode straight waveguide, a second output multimode straight waveguide, a first output tapered waveguide, a second output tapered waveguide, a first output bent waveguide, a second output bent waveguide, a first output few-mode straight waveguide and a second output few-mode straight waveguide; the second output few-mode straight waveguide is on the extension line of the input few-mode straight waveguide, and the first output few-mode straight waveguide and the second output few-mode straight waveguide are arranged in parallel; before and after heating the heating electrode, the signal light is output from the first output few-mode straight waveguide or from the second output few-mode straight waveguide, so as to realize the function of the few-mode waveguide optical switch based on the total internal reflection structure.

A large dispersion generator based on a vertically coupled planar optical waveguide comprises a pulse light source, a single-mode optical fiber, an optical fiber collimator, a coupling-in grating, the planar optical waveguide, a coupling-out grating, a convergent lens, a multimode optical fiber, a high-speed photoelectric detector and a high-speed AD device. A light beam is connected with the output end of the coupling-in grating through the optical fiber collimator and is subjected to angular dispersion in the X direction through the coupling-in grating; the planar optical waveguide is used for transmitting light beams and generating time delay; aliasing light beams reach a coupling-out grating, the number of etching lines of the coupling-out grating is the same as that of etching lines of the coupling-in grating, but the directions are opposite, and output light beams are parallel light in the X direction; coupled-in and coupled-out light beams are collimated light beams perpendicular to the planar optical waveguide; the convergent lens converges output light beams and then couples the light beams to the multimode optical fiber, the high-speed photoelectric detector is connected with the multimode optical fiber, and finally the light beams enter the high-speed AD device. More modes are obtained, the dispersion linearity and the resolution are improved, and the loss is small.

The invention discloses a multimode optical fiber PON (Passive Optical Network) system and a multimode PON optical module. The multimode optical fiber PON system consists of a multimode OLT (Optical Line Terminal) optical module, a multimode main optical fiber, a multimode optical splitter, a multimode branch optical fiber and a multimode ONU (Optical Network Unit) optical module, according to the multimode OLT optical module and the multimode ONU optical module, a laser, a laser driver, a detector, a transimpedance amplifier, a limiting amplifier and the like are directly mounted on a printed circuit board by adopting a planar optical waveguide assembly and a COB (Chip On Board) mode, so that photoelectric hybrid integrated packaging is realized, and the miniaturization design of the optical module is realized; the planar optical waveguide assembly realizes multiplexing transmission of two wavelength multimode laser beams through a 45-degree reflecting surface and a 45-degree placed multimode light splitting sheet structure; the welding type pin row connector ensures reliable fixation of the optical mode electrical interface, and the clamping jaw structure and the optical fiber contact pin of the multimode optical fiber assembly realize the anti-vibration pluggable optical interface design. The multimode optical fiber PON system provided by the invention meets the requirement of the system for point-to-multipoint optical fiber transmission in a short-distance range with low power consumption, low cost and high reliability.

The invention relates to a three-dimensional four-core fan-out optical waveguide structure and a manufacturing method thereof, and belongs to the technical field of integrated optics. Comprising a glass substrate, a first gradient three-dimensional optical waveguide, a second gradient three-dimensional optical waveguide, a first planar optical waveguide and a second planar optical waveguide, the left end of the first gradual change three-dimensional optical waveguide and the left end of the second gradual change three-dimensional optical waveguide are located under the left end of the first planar optical waveguide and the left end of the second planar optical waveguide respectively. The right end of the first gradual change three-dimensional optical waveguide and the right end of the second gradual change three-dimensional optical waveguide are located on the two sides of the same layer of the right end of the first planar optical waveguide and the right end of the second planar optical waveguide respectively. The vertical directions of the first gradual change three-dimensional optical waveguide and the second gradual change three-dimensional optical waveguide are gradually changed from the lower layer to the upper layer from left to right, and the horizontal distance is gradually increased; the first planar optical waveguide and the second planar optical waveguide are located on the upper layer, and the horizontal distance between the two is gradually increased from left to right.

Composite IC die structures comprising a first IC die that has a first region directly bonded to a second IC die across a hybrid-bond interface and a topographic feature extending from a second region of the first IC die. In some examples, a hybrid bond interface is fabricated prior to forming a topographic IC die feature. In other examples, a hybrid bond interface is fabricated after forming a topographic IC die feature. A PIC die comprising a planar optical waveguide further includes an optical coupler protruding from a region of the die. In another region of the PIC die metallization features are embedded with a dielectric material suitable for forming a hybrid bond with a surface of an EIC die. Scaling of the directly bonded interconnections between the PIC and EIC die may facilitate further disintegration of the optical and electrical domains within a heterogenous chip / chiplet assembly.

To achieve a light beam deflecting device that does not need to perform individual optical alignment for each of a plurality of observation visual fields.SOLUTION: A light beam deflecting device comprises: a planar optical waveguide circuit 3 that branches light emitted from a light source 1 into a first number of light beams, the first number being the same as the number of divided areas in a first direction in a target space, and emits the branched light beams from a predetermined emission position in the first direction so that the light beams are simultaneously radiated to the position of one pixel in a corresponding area; a first optical system 4 that converts the first number of light beams emitted from the planar optical waveguide circuit 3 into parallel light beams and emits the light beams at an emission angle corresponding to the predetermined emission position; and a second optical system 5 that reflects the first number of light beams emitted from the first optical system and radiates the reflected light beams to the target space.SELECTED DRAWING: Figure 1

The embodiment of the invention discloses a test system for a planar optical waveguide circuit chip and an optical receiving component, the chip comprises a first beam splitter, a modulation unit, a second beam splitter and a beam combining unit, the first beam splitter is connected with the input end of the modulation unit and the input end of the second beam splitter, and the first beam splitter is connected with the input end of the modulation unit and the input end of the second beam splitter. The input end of the first beam splitter is used as the input end of the planar optical waveguide circuit chip; the output end of the modulation unit and the output end of the second beam splitter are connected with the input end of the beam combining unit, and the output end of the beam combining unit serves as the output end of the planar optical waveguide circuit chip. According to the embodiment of the invention, the first beam splitter, the modulation unit, the second beam splitter and the beam combining unit are integrated on the same planar optical waveguide circuit chip, so that the system structure is greatly simplified, the occupied area of equipment is reduced, the test stability and the comparability between channels are further remarkably improved, and finally, the test efficiency and the accuracy of a test result can be effectively improved.

The invention discloses a lead zirconate titanate film-based high-speed electro-optical modulator and a preparation method thereof, and belongs to the technical field of planar optical waveguide devices. The modulator is composed of a silicon substrate, a silicon dioxide oxide layer, discrete metal electrodes, a silicon dioxide spacer layer, an inverted ridge type lead zirconate titanate flat plate core layer and a polymer upper cladding layer from bottom to top. The silicon dioxide spacing layer forms a recess due to the spacing of the discrete electrodes, and the lead zirconate titanate material naturally forms an inverted ridge type slab waveguide, so that a light field is more effectively controlled in the lead zirconate titanate film with a large electro-optical coefficient. In addition, the electro-optical polymer is adopted as the polymer upper cladding, the electro-optical polymer has an electro-optical effect and has a larger dielectric constant, an electric field is distributed more uniformly in gaps of the discrete metal electrodes, the electric field effect on lead zirconate titanate is larger, and the electro-optical phase modulation efficiency is further improved. The manufacturing process is greatly simplified, the manufacturing difficulty of the device is reduced, and the method has the advantages of low production cost, high efficiency and the like.

The utility model provides a high-power laser assembly. The high-power laser assembly comprises a substrate, an aspheric lens, an optical chip and an optical fiber assembly. The aspheric lens, the optical chip and the optical fiber assembly are sequentially arranged on the same side surface of the substrate; the optical chip is provided with at least N planar optical wavelength export channels, and N is greater than or equal to 4; the optical fiber assembly is provided with a capillary hole through which at least one optical fiber can penetrate, the at least one optical fiber penetrates through the capillary hole and corresponds to the laser incident end of the optical chip, and the laser emergent end of the optical chip corresponds to the incident end of the aspheric lens; compared with a multi-channel coupler adopted at present, the optical chip is adopted to replace the multi-channel coupler, and different calibration positions are modulated, so that the cost of the high-power laser assembly is greatly reduced, mass production is facilitated, the manufacturing cost is reduced, and the laser transmission efficiency and stability of the high-power laser assembly are improved.

An apparatus includes a silicon (Si) optical phase shifter. In an embodiment, the optical phase shifter comprises a planar optical waveguide having a silicon optical core, and a pair of biasing electrodes located along opposite sides of a segment of the silicon optical core. The segment of the silicon optical core comprises a series of p-n junctions. The series extends in a direction transverse to an optical propagation direction in a segment of the planar optical waveguide including the segment of the silicon optical core. At least two of the p-n junctions are configured to be reverse biased by applying a voltage across the biasing electrodes.

This light beam deflecting device comprises: a planar optical waveguide circuit (3) that branches light from a wavelength variable semiconductor laser (1) into a first number of light beams that is the same as the number of divided areas in a first direction, selects an emission position in the first direction of the branched light and emits the branched light such that the light beams are simultaneously emitted to the position of one pixel in the corresponding areas; a dispersion element (5) for deflecting the first number of light beams from the circuit (3) at an angle corresponding to the wavelength of the light in a plane parallel to a second direction orthogonal to the first direction; an optical system (6) for converting the first number of light beams from the element (5) so as to be parallel to the axis of the optical system; and an optical system (7) for deflecting the first number of light beams from the optical system (6) to irradiate a target space.