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1. 发明申请

US20220291448A1 AN ATHERMAL ARRAYED WAVEGUIDE GRATING 有权
公开(公告)号：US20220291448A1
公开(公告)日：2022-09-15
申请号：US17632629
申请日：2019-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Rui ZHENG
IPC分类号： G02B6/12 , G02B6/122
摘要： An athermal arrayed waveguide grating includes a silicon-based substrate and an athermal arrayed waveguide disposed on the silicon-based substrate. The athermal arrayed waveguide includes a cladding layer and a waveguide chip layer, the waveguide chip layer is disposed on the cladding layer and has a refractive index greater than that of the cladding layer; the waveguide core layer includes multilayer structures having a periodic configuration, the multilayer structure includes two layers of silica material and a negative temperature coefficient material disposed between the two layers of silica material; the negative temperature coefficient material is used to compensate for a dimensional deformation of the silicon-based substrate after being heated. The present invention simplifies the structure of the athermal arrayed waveguide grating, sets the negative temperature coefficient material in the waveguide core layer structure, and makes the final temperature coefficient of refractive index of the waveguide structure is a negative number.

2. 发明申请

US20220317370A1 THIN FILM OPTICAL WAVEGUIDE AND PREPARATION METHOD THEREFOR 有权
公开(公告)号：US20220317370A1
公开(公告)日：2022-10-06
申请号：US17608132
申请日：2020-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Meng HUANG
IPC分类号： G02B6/122 , G02B6/132
摘要： A thin film optical waveguide includes a silicon-based substrate, a cladding layer arranged on the silicon-based substrate, and an optical waveguide core layer arranged on the silicon-based substrate. The optical waveguide core layer is arranged in the cladding layer, the optical waveguide core layer includes a double-layer optical waveguide dielectric thin film and a thin film material interlayer arranged between the double-layer optical waveguide dielectric thin film, the thin film material interlayer has a two-dimensional lattice sub-wavelength structure, and the effective lattice constant and the duty cycle of the two-dimensional lattice sub-waveguide structure have at least one numerical value in the same propagation direction. The thin film optical waveguide overcomes the limits of technology and materials, achieves a variable effective refractive index in same propagation direction, satisfies complex design and application scenarios, and reduces the difficulty of manufacturing the thin film optical waveguide having a variable effective refractive index.

3. 发明申请

US20220268995A1 THIN FILM OPTICAL WAVEGUIDE AND PREPARATION METHOD THEREFOR 有权
公开(公告)号：US20220268995A1
公开(公告)日：2022-08-25
申请号：US17632809
申请日：2020-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Meng HUANG
IPC分类号： G02B6/122 , G02B6/132
摘要： A thin film optical waveguide includes a silicon-based substrate, a cladding layer arranged on the silicon-based substrate, and an optical waveguide core layer arranged on the silicon-based substrate. The optical waveguide core layer is arranged in the cladding layer, the refractive index of the optical waveguide core layer is higher than that of the cladding layer, the optical waveguide core layer comprises a double-layer optical waveguide dielectric thin film and a thin film material interlayer arranged between the double-layer optical waveguide dielectric thin film, the thin film material interlayer has a two-dimensional lattice sub-wavelength structure, and the thin film material interlayer is a negative thermo-optical coefficient material used for performing thermo-optical coefficient compensation on the optical waveguide dielectric thin film.

4. 发明申请

US20220291532A1 LITHIUM NIOBATE OPTICAL WAVEGUIDE CHIP 有权
公开(公告)号：US20220291532A1
公开(公告)日：2022-09-15
申请号：US17632624
申请日：2019-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Meng HUANG
IPC分类号： G02F1/035
摘要： A lithium niobate optical waveguide chip includes a monocrystalline silicon substrate, a lithium niobate film, a negative thermo-optical coefficient material disposed on the lithium niobate film, a silicon dioxide cladding disposed on the monocrystalline silicon substrate and coating the lithium niobate film and the negative thermo-optical coefficient material, and a metal electrode disposed on the silicon dioxide cladding. The lithium niobate film includes a lithium niobate central ridge, or a proton exchange layer and lithium niobate side wings. The present invention eliminates the sensitivity of the effective refractive index of the lithium niobate optical waveguides to temperature by disposing the negative thermo-optical coefficient material layer with appropriate thickness on the lithium niobate film, realizes the design of non-thermal photoelectric devices, effectively reduces the thermo-optical coefficient of the lithium niobate optical waveguide chip, and makes the performance of the lithium niobate optical waveguide chip insensitive to temperature change.

5. 发明申请

US20220283370A1 A WAVELENGTH CONTROLLABLE ARRAYED WAVEGUIDE GRATING 有权
公开(公告)号：US20220283370A1
公开(公告)日：2022-09-08
申请号：US17632646
申请日：2019-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Rui ZHENG
IPC分类号： G02B6/12
摘要： The present invention discloses a wavelength controllable arrayed waveguide grating, of which the dispersion equation of the arrayed waveguide grating is: n s ( d 1 · x 1 f 1 - d · x f ) + n c ⁢ Δ ⁢ L = m ⁢ λ , where, λ is the work wavelength of the arrayed waveguide grating; ΔL is the geometric length difference between the adjacent arrayed waveguides in the waveguide array; m is the multiple of the central wavelength; n_s is the effective refractive index of the free transmission region; n_c is the effective refractive index of the transmission waveguide; d_1 and d represent the distances between the arrayed waveguides in the first free transmission region and the second free transmission region, respectively; f_1 and f are focal lengths of the first slab waveguide and the second slab waveguide, respectively; x_ 1 and x represent the positions of the input waveguide and the output waveguide on the Rowland circle, respectively.

6. 发明申请

US20230122040A1 BRAGG GRATING CHIP 有权
公开(公告)号：US20230122040A1
公开(公告)日：2023-04-20
申请号：US17608464
申请日：2020-11-27
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Ting YAN
IPC分类号： G02F1/01 , G02F1/03
摘要： The present invention relates to a Bragg grating chip, which comprises a monocrystalline silicon substrate, a silicon dioxide layer arranged on the monocrystalline silicon substrate, a Bragg grating arranged on the silicon dioxide layer and a negative thermal-optical coefficient material arranged on the Bragg grating, so that the sensitivity of the Bragg grating based on lithium niobate crystals to temperature is eliminated, the drift amount of the reflection spectrum center wavelength of the Bragg grating chip in the environment temperature change of 1k is basically zero, and the insensitivity of the spectral response of photoelectric devices such as optical filter, laser and the like formed by the lithium niobate Bragg grating to the temperature change can be realized.

7. 发明申请

US20220276454A1 OPTICAL RECEIVING ENGINE BASED ON PLANAR WAVEGUIDE CHIP 有权
公开(公告)号：US20220276454A1
公开(公告)日：2022-09-01
申请号：US17632655
申请日：2019-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Rui ZHENG
IPC分类号： G02B6/42
摘要： An optical receiving engine based on planar waveguide chip includes an arrayed waveguide chip used for receiving an optical signal sent by an optical fiber, an output waveguide of the arrayed waveguide chip with a multi-mode waveguide structure, the light is incident to the arrayed waveguide chip and then being output through the output waveguide, and the light having different wavelengths corresponding to different mode field distributions of the output waveguide; a detector coupled with the arrayed waveguide chip, a photosensitive area of the detector being determined based on a mode field distribution range of the output waveguide; and an amplifier connected to the detector. The shortcoming in the prior art of low coupling efficiency can be solved. Optimizing the photosensitive area of the detector can enable the photosensitive area to match a spot mode field of the waveguide chip, thereby improving the coupling efficiency.

8. 发明申请

US20220268993A1 THIN FILM OPTICAL WAVEGUIDE AND PREPARATION METHOD THEREFOR 有权
公开(公告)号：US20220268993A1
公开(公告)日：2022-08-25
申请号：US17632808
申请日：2020-11-18
申请人： IRIXI PHOTONICS (SUZHOU) CO., LTD.
发明人： Yifan CHEN , Meng HUANG
IPC分类号： G02B6/12
摘要： A thin film optical waveguide includes a silicon-based substrate, a cladding layer arranged on the silicon-based substrate, and an optical waveguide core layer arranged on the silicon-based substrate. The optical waveguide core layer is arranged in the cladding layer, the refractive index of the optical waveguide core layer is higher than that of the cladding layer, the optical waveguide core layer includes a double-layer optical waveguide dielectric thin film and a thin film material interlayer arranged between the double-layer optical waveguide dielectric thin film, the thin film material interlayer has a two-dimensional lattice sub-wavelength structure, and the effective lattice constant and the duty cycle of the two-dimensional lattice sub-wavelength structure are approximately the same in each propagation direction, so as to make the effective refractive index of the thin film optical waveguide approximately isotropic.

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