77 results about "Arrayed waveguide grating" patented technology

The invention relates to an optical fiber coupling dynamic interferometer based on arrayed waveguide grating light splitting. A luminous source and an arrayed waveguide grating of the optical fiber coupling dynamic interferometer are arranged on a motion module. The light emitting source is connected to the input port of the array waveguide grating through an optical fiber, and through the movement module, any one of the multiple output ports of the array waveguide grating is in butt joint with the optical fiber connected to the incident end of the collimation structure. A half-wave plate and a beam splitter prism of the imaging element group are sequentially arranged on an emergent light path of the emergent end of the collimation structure, and the beam splitter prism is used for splitting a light beam passing through the half-wave plate into a reference light beam transmitted along a first light path and a measurement light beam transmitted along a second light path. And the reflecting mirror of the imaging element group reflects the reference light beam back to the beam splitting prism. And the to-be-measured surface reflects the measurement light beam back to the beam splitter prism. The reference beam and the measurement beam reflected back to the beam splitter prism interfere with each other and are imaged on the target surface of the camera. Accurate measurement of the wavefront image of the surface to be measured is realized.

The invention provides a photon parallel matrix convolution operation chip which can be applied to the technical field of integrated photonics and optical calculation. The chip is integrated by a 1 * N array waveguide grating, a 1 * 2 beam splitter array, an input matrix modulator array, two N * 1 array waveguide gratings, two 1 * N beam splitters, a weight matrix modulator array, an M * M array waveguide grating detector array and a detector array. Main functional devices are integrated in a monolithic mode, the system is compact, the complexity and power consumption of the system can be effectively reduced, and the calculation efficiency is improved.

The invention discloses an end-to-end optical computing chip based on multi-mode analog signal fusion processing, and belongs to the optical computing technology. Comprising a multi-mode input fusion front-end module, an optical fiber input interface and an end-to-end reasoning module. The multi-mode input fusion front-end module can convert different types of original analog signals such as images, spectrums and radio frequencies into unified broadband spectrum input signals. The end-to-end reasoning module constructs a deep optical neural network, and the deep optical neural network comprises a sensing-convolution integrated unit realized by an arrayed waveguide grating (AWG). The end-to-end reasoning module further comprises a photoelectric non-linear-pooling integrated unit, the average pooling function and the non-linear activation function are achieved at the same time, and light path loss is effectively compensated through injection of the supply light source. And finally, integrating the signals subjected to multi-layer processing by a full connection layer, and outputting a classification result by an output layer. According to the chip architecture, direct and efficient processing of multi-mode analog signals is realized.

The invention provides signal coding equipment, an imaging system and an imaging method. The signal coding equipment comprises an array waveguide grating, a coding optical fiber, a delay optical fiber and an optical splitter, the array waveguide grating is configured to convert an initial signal emitted by the light source into multiple paths of target signals; the optical splitter is configured to combine multiple paths of target signals and then emit the combined signals; a plurality of paths of coding optical fibers and a plurality of paths of delay optical fibers with different lengths are arranged behind the array waveguide grating, and each path of delay optical fiber is connected to the coding optical fiber of the corresponding coding sequence; the delay optical fiber is configured to delay a transmitted target signal, and the coding optical fiber is configured to perform pulse coding on the transmitted target signal. According to the invention, the original pulse signal is coded by using the sequence code with good orthogonality, so that the signal processing accuracy is improved. And the delay optical fibers are grouped, so that the corresponding channels in each group of channels can be simultaneously transmitted, the signal transmitting time is shortened, the signal processing efficiency is improved, and the point acquisition rate can be improved while the fuzzy distance is expanded.

The invention discloses a distributed feedback laser array line width narrowing device and method based on self-injection feedback, and the device is characterized in that a laser array is connected with an array waveguide grating, the array waveguide grating is connected with an optical fiber circulator, and the optical fiber circulator is connected with an optical fiber coupler; the output of the laser array is combined through the array waveguide grating and then input into the optical fiber circulator, part of laser entering the optical fiber coupler from the optical fiber circulator passes through the optical fiber circulator and the array waveguide grating again and is injected into the laser array in the form of optical feedback, and the working state of the laser array is influenced by the optical feedback. And the line width of the laser array is narrowed. Through the synergistic effect of the laser array, the array waveguide grating, the optical fiber circulator and the optical fiber coupler, a self-injection feedback loop is constructed, part of output laser is re-injected into the laser unit after wave combination and light splitting, and phase noise is suppressed through optical feedback, so that the linewidth is remarkably reduced.

The present invention provides a photonic integrated chip, a laser radar using the photonic integrated chip, and a detection method. The photonic integrated chip includes: a substrate, a first arrayed waveguide grating (AWG), a second arrayed waveguide grating (AWG), multiple multimode interference couplers (MIFs), multiple optical couplers (OFs), and a photodetector. The first arrayed waveguide grating (AWG) is used to split a transmitted laser signal to obtain multiple components of beamed transmitted signals; the MFIs are used to receive the beamed transmitted signals and transmit them to a target object to be detected, as well as receive reflected light spots and transmit them to the optical couplers. The second arrayed waveguide grating (AWG) is used to split a local laser signal to obtain multiple components of beamed local signals; the OFs are used to process the reflected light spots and the beamed local signals to obtain coupled signals; and the OFs are used to receive and process the coupled signals. This results in a photonic integrated chip for laser radars with a high chip integration density.

The invention provides a high-resolution broadband integrated spectrometer based on thin film lead zirconate titanate and a preparation method, and relates to the technical field of integrated optics. The structure of the spectrometer comprises a substrate; the silicon dioxide lower cladding layer is arranged on the substrate; the lead zirconate titanate thin film waveguide layer is arranged on the silicon dioxide lower cladding, a plurality of micro-ring resonators and a plurality of array waveguide gratings are arranged in the lead zirconate titanate thin film waveguide layer, and each array waveguide grating is connected with each micro-ring resonator through a waveguide; the sectional periodic metal electrode arrangement system is arranged in each section of straight waveguide area in the micro-ring resonator; wherein the plurality of micro-ring resonators are configured with resonant wavelengths which are distributed in a staggered manner, and the interval between the adjacent resonant wavelengths is 1 / n of the interval between the array waveguide grating channels; the spectrometer is configured to change the local waveguide refractive index by using the residual polarization effect of the lead zirconate titanate thin film through a segmented polarization method so as to realize alignment of the resonant wavelength and the center of the array waveguide grating channel.

The application discloses a reconfigurable microwave photonic filter, comprising a laser source, an electro-optic modulator, an adjustable feedback type array waveguide grating, a filtering module and a photoelectric detector, the laser source generates an optical signal which is transmitted to the electro-optic modulator, the electro-optic modulator modulates the optical signal after receiving the optical signal, forms a corresponding sideband, the adjustable feedback type array waveguide grating divides the spectrum of the optical signal into different wavelengths, and independently adjusts the amplitude and phase of the optical signals with different wavelengths, then the filtering module filters out the periodically repeated signals, and the photoelectric detector converts the filtered optical signal into an electrical signal, thereby completing the optical-electric conversion. The reconfigurable microwave photonic filter and the filtering method have the advantages of simple structure, highly programmable spectrum shape, fast reconfigurable response and high integration, and will have great attraction in the field of high-frequency signal processing. The application obtains: National Natural Science Foundation of China Youth Science Foundation Project (62204156).

An optical fiber beam splitter is located on an emergent light path of a light emitter, the optical fiber beam splitter is used for dividing an incident light beam from an incident side into two paths and outputting the two paths on an emergent side, one path is incident to a light intensity detection piece through an optical fiber, and the other path is incident to a light intensity detection piece through an optical fiber; and the other path is incident to the incident end of the collimation piece through the optical fiber. And a half-wave plate and a beam splitter prism are arranged at the emergent end of the collimating piece. The half-wave plate is located between the emergent end of the collimating piece and the beam splitter prism, the collimated light beam is divided by the beam splitter prism into a first light beam transmitted along a first light path and a second light beam transmitted along a second light path, and the first light beam is reflected back to the beam splitter prism through the reflector. The second light beam is reflected back to the beam splitter prism through the to-be-measured surface. The first light beam and the second light beam reflected back to the beam splitter prism interfere with each other, and an interference image is recorded in the camera. Accurate measurement of the wavefront image of the surface to be measured can be realized.

An array waveguide diffraction grating (500) according to one aspect of the present disclosure comprises: a first slab waveguide (502); a second slab waveguide (504); and a waveguide array (506) having a plurality of waveguides that couple the first slab waveguide (502) and the second slab waveguide (504). In the waveguide array (506), at least one of the plurality of waveguides has a plurality of straight sections and a plurality of curved sections, and at least one of the plurality of curved sections has an S-shape.

The application discloses an end-to-end optical computing chip based on multi-modal analog signal fusion processing, and belongs to the technical field of optical computing. The chip comprises a multi-modal input fusion front-end module, a fiber input interface and an end-to-end inference module. The multi-modal input fusion front-end module can convert different types of original analog signals such as images, spectra and radio frequencies into unified broadband spectral input signals. The end-to-end inference module builds a deep optical neural network, which comprises a "sensing-convolution integrated" unit realized by an arrayed waveguide grating (AWG). The end-to-end inference module also comprises an optoelectronic nonlinear-pooling integrated unit, which simultaneously realizes the functions of average pooling and nonlinear activation, and effectively compensates for optical path loss through injection of a light source. Finally, the signals processed by multiple layers are integrated by a full connection layer, and a classification result is output by an output layer. The chip architecture realizes direct and efficient processing of multi-modal analog signals.

The embodiment of the invention provides a vehicle-mounted communication method, device and system and a storage medium, and relates to the technical field of communication. The method comprises the following steps: allocating a wavelength channel for each sensor through a dynamic wavelength allocation controller according to the type and communication load of the sensor; according to the wavelength channel allocated to each sensor, generating an optical signal of a corresponding wavelength through a temperature control distributed feedback laser, and modulating data of each sensor to the optical signal of the corresponding wavelength; the modulated optical signals with different wavelengths are input into an array waveguide grating multiplexer to be multiplexed into single-path optical signals, and demultiplexing is carried out through an array waveguide grating demultiplexer to generate data of each sensor; the communication load of each sensor is fed back to the dynamic wavelength allocation controller. According to the method, based on the types of the sensors and the communication loads, wavelength channels are dynamically allocated to different sensors, the time delay of multiplexing and demultiplexing is reduced, and therefore the real-time performance and reliability of vehicle-mounted communication are improved.

The present application discloses a silicon-on-insulator array waveguide grating chip for dense wavelength division multiplexing, which relates to the field of integrated silicon photonics technology. The chip includes an AWG and a wavelength thermal tuning structure. The AWG is composed of an input waveguide, a first slab waveguide, an array waveguide, a second slab waveguide, and an output waveguide connected in sequence along the optical path direction. The AWG is used to implement wavelength division multiplexing and demultiplexing. The wavelength thermal tuning structure includes a thermal tuning electrode and a metal electrode. The thermal tuning electrode is located above the array waveguide and is connected to an external control circuit via the metal electrode. The thermal tuning electrode is used to heat the array waveguide according to an external voltage to achieve wavelength tuning of the AWG channel. As the voltage amplitude increases, the heat generated by the thermal tuning electrode increases, and the wavelength of the AWG channel drifts toward a longer wavelength. The technical solution of the present application can realize multi-wavelength dense wavelength division multiplexing on a compact chip, has the advantages of small size and high reliability, and can realize passband wavelength control through the wavelength thermal tuning structure to meet the application requirements of multi-wavelength optical networks.

This application relates to a method for producing a refractive and diffractive hybrid two-dimensional optical waveguide, belonging to the technical field of optical waveguide design, and includes the following steps: S1, setting the beam transmission path and determining the coupling-in region, transition region, and coupling-out region on the waveguide plate; S2, forming an array coupling-in grating and an array coupling-out grating in the coupling-in and coupling-out regions defined on the waveguide plate using an array waveguide grating process; S3, determining the grating period, transparent portion width, grating width, resolution, and dispersion rate of the transition region based on a preset calculation rule; S4, using the calculation data from S3, forming a diffraction transition grating in the transition region defined on the waveguide plate using a surface relief process. The hybrid refractive and diffractive waveguide results in a lower overall cost, better color, higher brightness and luminous efficiency, simpler process, higher mass production capability, less susceptibility to rainbow patterns, and no light leakage from the back side. It also requires low equipment costs and has a coupling efficiency close to 100%, leading to better performance.

The application discloses a dense optical fiber coding method based on an optical switch and a weak reflectivity grating string, and comprises the following steps: 1, a light source module emits a C-band pulse signal, and the signal contains optical pulses with different central wavelengths and overlapping in a time domain; 2, a weak reflectivity grating string is used to code each node to obtain different wavelength pulse combination types, and the coding signals of different coding nodes on the same link are spaced apart in the time domain; 3, the coding signal is injected into an array waveguide grating through an optical circulator, and is decomposed into more than one single-wavelength pulse signal; 4, a detector array and a collection card are used to carry out photoelectric conversion on the coding pulse signal, and the collected signal is output to an FPGA and an upper computer for processing and display; the problems that the prior art cannot be applied to realize real-time coding of a large-scale and high-reliability all-optical network and that the real-time coding scale is limited and cannot meet the use requirements of a large-scale network are solved.

A clamp used for athermal arrayed waveguide grating chip end face external detection and cleaning comprises a main body, the two sides of the main body are provided with inclined faces, one end of the main body is provided with an extending part extending towards the inclined faces, and a limiting groove used for positioning a grating chip is formed between the extending part and the inclined faces. According to the clamp, external detection and cleaning can be carried out on the input and output coupling end face of the array waveguide grating chip at a fixed angle, and more convenient and faster coupling end face external detection and cleaning are provided under the condition that normal operation is not affected.

A coupling device for a multi-channel optical fiber array and a multi-layer arrayed waveguide grating, includes: a first clamping component and a second clamping component. A plurality of optical fibers that are spaced apart in an X-axis direction are connected on the first clamping component, each optical fiber extends in a Y-axis direction, and a plurality of arrayed waveguide gratings that are spaced apart in the X-axis direction are connected on the second clamping component. Each arrayed waveguide grating extends in the Y-axis direction, the optical fibers and the arrayed waveguide gratings are disposed in a one-to-one coaxial mapping manner, each arrayed waveguide grating is right-trapezoid-shaped, and beveled surfaces of any two arrayed waveguide gratings are located on a same plane. A wavelength division multiplexing technology is combined with a multi-channel parallel transmission technology.

The invention discloses a multi-beam signal processing method based on an arrayed waveguide grating, and the method comprises the steps: carrying out the phase gradient optimization regulation and control of a multi-beam output array based on a phase tuner, so as to obtain a phase tuning parameter which meets preset beam pointing and width requirements; and performing dynamic reconstruction on the multi-beam output array based on the phase tuning parameter and the parallel processing characteristic of the array waveguide grating to obtain a multi-beam signal corresponding to the target multi-wavelength optical signal. According to the invention, phase gradient optimization regulation and control are carried out on the beam array through the phase tuner, the characteristics of pointing, width and the like of the beam can be accurately controlled, and the adjustment function enables the beam to be adjusted according to preset requirements, so that strict requirements of a specific application scene on the beam are met.

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.

An arrayed waveguide grating device includes an input coupler configured to receive a light signal and split the light signal into a plurality of output light signals. The device also includes a plurality of waveguides optically connected to the input coupler, each waveguide having a plurality of waveguide portions having respective sensitivities to variance in one or more parameters associated with operating of the optical arrayed grating device. Lengths of the respective portions are determined such that each waveguide applies a respective phase shift to the output light signal that propagates through the waveguide and the plurality of waveguides have at least substantially same change in phase shift with respective changes in the one or more parameters associated with operation of the device. An output coupler is optically connected to the plurality of waveguides to map respective light signals output from the plurality of waveguides to respective focal positions.

The invention provides an all-optical fast Fourier transform calculation implementation method and a photonic device. The method comprises the following steps: demultiplexing a time sampling vector based on a first array waveguide grating to obtain a parallel multi-wavelength signal; carrying out column-by-column phase modulation on the parallel multi-wavelength signals according to a discrete Fourier transform matrix based on a phase shift waveguide array to obtain weighted signals; and combining the weighted signals based on the second array waveguide grating to obtain an output optical signal. According to the method provided by the invention, a parallel multi-wavelength signal is obtained by demultiplexing a time sampling vector based on a first array waveguide grating; carrying out column-by-column phase modulation on the parallel multi-wavelength signals according to a discrete Fourier transform matrix based on a phase shift waveguide array to obtain weighted signals; and on the basis of the second array waveguide grating, weighted signals are combined to obtain output optical signals, the physical characteristics of high selectivity and low loss of an integrated photonic device are fully utilized, and efficient and high-fidelity Fourier transform calculation is realized in an integrated form with low structural complexity.

Athermal arrayed waveguide grating structure that may operate as an optical filter including an input Silicon (Si) slab waveguide, an output Si slab waveguide, the input Si slab waveguide and the output Si slab waveguide optically connected by an arrayed group of Silicon Nitride (SiN) grating waveguides. Temperature insensitivity of the structure is achieved by locating output waveguide(s) of the Si output slab waveguide at / within a 10-degree angle offset from the center line of the output Si slab waveguide.

Thermally compensated waveguides are disclosed herein. According to one aspect, the present disclosure proposes new ways to combine negative TOC (NTOC) material layers within the waveguides. NTOC materials can be implemented in one or more of a cladding layer, a core rib / channel waveguide, a horizontally segmented waveguide, a vertically segmented waveguide, a sub-wavelength grating structure, and / or in various other waveguide structure implementations including arbitrary core or cladding shapes. The integration of NTOC materials improves the temperature dependence of the waveguide spectrum. The need for fast and efficient optical-based technologies is increasing as Internet data traffic growth rate is overtaking voice traffic, pushing the need for optical communications. The new waveguide structures can be integrated into waveguides, individual devices, integrated devices like arrayed waveguide grating devices, and photonic integration circuits (PICs), decreasing temperature dependence of such devices and circuits.

The invention relates to a dynamic interferometer based on AWG high-precision measurement, and an array waveguide grating is used for splitting light beams entering an input port, so that the light beams with different wavelengths are respectively output from different output ports of the array waveguide grating. The light source, the first space lens group and the array waveguide grating are arranged on the displacement mechanism, and the displacement mechanism enables different output ports of the array waveguide grating to be aligned with the second space lens group. A half-wave plate of the interference assembly is located between a second space mirror set and a polarization beam splitter, the polarization beam splitter is used for dividing a light beam passing through the half-wave plate into reference light transmitted along a reference light path and measurement light transmitted along a measurement light path, and the reference light is reflected back to the polarization beam splitter through a reflection mirror surface. The measuring light is reflected back to the polarization beam splitter through the surface to be measured, the reference light and the measuring light which are reflected back to the polarization beam splitter interfere with each other, and an interference image is recorded in the detector, so that the accuracy of obtaining the wavefront image of the surface to be measured is higher.

The invention relates to the field of integrated optics, and particularly provides an array waveguide grating, and the array waveguide grating comprises a first array waveguide which comprises a group of first transmission waveguides which are arranged at intervals, and each first transmission waveguide comprises a first sub-waveguide and a second sub-waveguide which are arranged at intervals in a signal transmission direction; the second array waveguide comprises a group of second transmission waveguides which are arranged at intervals, the first transmission waveguides and the second transmission waveguides are arranged in a one-to-one correspondence manner, and the thermo-optical coefficient of the second transmission waveguides is greater than that of the first transmission waveguides; the phase shifter array comprises a plurality of phase shifters, and the phase shifters and the second transmission waveguides are arranged in a one-to-one correspondence mode; optical signals are coupled and transmitted to the corresponding second transmission waveguides through the first sub-waveguides, phase modulation is carried out on the optical signals through the phase shifters, and the optical signals subjected to phase modulation are coupled and transmitted to the corresponding second sub-waveguides. The scheme can effectively reduce the insertion loss of the transmission waveguide and effectively improve the modulation efficiency.

This invention relates to a fiber-coupled dynamic interferometer based on arrayed waveguide grating beam splitting, wherein the light source and the arrayed waveguide grating are arranged in a motion module. The light source is connected to the input port of the arrayed waveguide grating via an optical fiber. The motion module allows any one of the multiple output ports of the arrayed waveguide grating to be connected to an optical fiber at the incident end of a collimating structure. A half-wave plate and a beam splitter prism of the imaging element group are sequentially arranged on the output optical path at the output end of the collimating structure. The beam splitter prism splits the beam passing through the half-wave plate into a reference beam propagating along a first optical path and a measurement beam propagating along a second optical path. A mirror of the imaging element group reflects the reference beam back to the beam splitter prism. The surface under test reflects the measurement beam back to the beam splitter prism. The reference beam and the measurement beam reflected back to the beam splitter prism interfere with each other and are imaged onto the target surface of the camera. This achieves accurate measurement of the wavefront image of the surface under test.

The utility model provides a dense wavelength division multiplexing transmission system capable of expanding O-band wavelength signals, which comprises a first main circuit and a second main circuit which can mutually transmit optical signals, the first main circuit comprises a first array waveguide grating module, one side of the first array waveguide grating module is in butt joint with a plurality of first main circuit optical modules, and the other side of the first main circuit optical modules is in butt joint with a plurality of second main circuit optical modules. The other side of the first array waveguide grating module is sequentially connected with a first filter and a dispersion compensation module, a first amplifier is further arranged between the first array waveguide grating module and the first filter, one side of the dispersion compensation module is in butt joint with a first expansion port, and the first expansion port is connected with a first expansion branch. Compared with the prior art, the system has the advantages that the C band DWDM optical module is directly adopted in the main line, signal conversion does not depend on the Muxponder, the transmission rate of each channel can be increased to 100 Gbps or above, O band wavelength signals are also combined into the main line for long-distance transmission, and the ever-increasing communication requirements are met.

The invention discloses a programmable integrated chip for a high-speed communication network and a control method. The chip comprises an optical fiber coupler array, a plurality of electro-optical modulators, a plurality of optical switches, a plurality of crossed waveguides and an array waveguide grating. The optical fiber coupler array comprises a plurality of first optical fiber couplers, a plurality of second optical fiber couplers and a third optical fiber coupler, and the output ends of the first optical fiber couplers are connected with the input ends of the electro-optical modulators in a one-to-one correspondence mode; the output ends of the electro-optical modulators are connected with the input ends of the optical switches in a one-to-one correspondence mode, each optical switch comprises two output ends, and one output end is connected with the input end of the second optical fiber coupler after passing through a crossed waveguide or is directly connected with the input end of the second optical fiber coupler. The other output end is connected with the input end of the array waveguide grating directly or after passing through a crossed waveguide, and the output end of the array waveguide grating is connected with the input end of the third optical fiber coupler. The method can be applied to a multi-wavelength transmission scene and can also be applied to a single-wavelength transmission scene.

The present invention discloses an optical switching device and method combining space division and wavelength division, which includes a first-stage space-division optical switch combination, a second-stage switching unit, and a third-stage space-division optical switch combination. The second-stage switching unit is composed of four cyclic arrayed waveguide gratings. The input signal is output to the cyclic arrayed waveguide grating through the selection of the output port by the first optical switch, and the routing exchange is completed by using the cyclic feature of the cyclic arrayed waveguide grating and output through the corresponding second optical switch. In the present invention, when the number of switching ports is expanded, the second-stage switching unit remains four AWGs unchanged, reducing the number of required control units. Moreover, by using space-division optical switching, the optical path is switched by actively configuring the optical routing components, and by using wavelength-division optical switching, the working wavelength of the input signal is actively tuned, and combined with the wavelength routing characteristics of the cyclic arrayed waveguide grating, the active selection of the output port of the optical signal is performed, achieving strict non-blocking.

The present disclosure provides a polarization-insensitive array waveguide grating applied to the field of optical communication wavelength division multiplexing technology, comprising: an input channel waveguide, which inputs multi-wavelength mixed polarization state composite light into an input slab waveguide area; the input slab waveguide area diffracts the multi-wavelength mixed polarization state composite light; a first array waveguide module, which performs power distribution on the diffracted light from the input slab waveguide area to form a plurality of first composite lights, and transmits the first composite lights to corresponding polarization beam splitters respectively; a polarization beam splitter module, which separates each first composite light into a plurality of multi-wavelength second composite lights with single polarization; a second array waveguide module, which transmits the plurality of second composite lights to an output slab waveguide area respectively; the output slab waveguide area diffracts the plurality of second composite lights and focuses the diffracted light of different wavelengths to different output channel waveguides; and the output channel waveguide, which outputs light of different polarization states at the same specific wavelength.