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公开(公告)号：US20240255751A1
公开(公告)日：2024-08-01
申请号：US18485173
申请日：2023-10-11
发明人： Daniel J. Blumenthal , Jiawei Wang , Kaikai Liu , Ryan Q. Rudy
IPC分类号： G02B26/08 , G02B6/42 , H10N30/20 , H10N30/853 , H10N30/87
CPC分类号： G02B26/0875 , G02B6/4204 , H10N30/206 , H10N30/8554 , H10N30/877
摘要： Disclosed herein is a stress optical modulator. The modulator include a circular piezo-electric actuator; and a ring waveguide separated from the circular piezo-electric actuator by a top cladding layer. The circular piezo-electric actuator may be offset from the ring waveguide such that a first circular portion of the circular piezo-electric actuator is located on the outside of the ring waveguide and a second circular portion of the circular piezo-electric actuator is located on the inside of the ring waveguide. The circular piezo-electric actuator may be configured to change the guiding properties of the ring waveguide based on the voltage applied to the circular piezo-electric actuator by inducing strain through the top cladding layer to change the optical properties of the ring waveguide.
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公开(公告)号：US20240255699A1
公开(公告)日：2024-08-01
申请号：US18393392
申请日：2023-12-21
申请人： The Regents of the University of California , Massachusetts Institute of Technology , National Technology & Engineering Solutions of Sandia, LLC
IPC分类号： G02B6/122
CPC分类号： G02B6/1228
摘要： Systems and methods for hybrid integration of ultra-low loss waveguide photonic circuits with various efficient on-chip elements are described. The photonic circuits can integrate various elements including (but not limited to): gain, modulation, detection, and nonlinear optical elements. The integrated photonic chips can be manufactured in a flexible, reconfigurable, 3D heterogeneous platform. The integrated photonic chips can cover wavelength ranges from the visible wavelength to infrared wavelength.
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公开(公告)号：US20240184041A1
公开(公告)日：2024-06-06
申请号：US18527017
申请日：2023-12-01
申请人： The Regents of the University of California , The United States Government, as represented by the Secretary of Commerce
发明人： Daniel J. Blumenthal , Scott Papp
CPC分类号： G02B6/1225 , G02B6/12004 , G02B2006/12054 , G02B2006/12061 , G02B2006/12142
摘要： Optical photonic integrated optical clocks on photonic integrated circuits are described. The optical clocks can provide the timing stability of atomic clocks at ultra-low size and power. The optical clocks are be fabricated using CMOS foundry fabrication processes.
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4.发明公开公开(公告)号：US20240142804A1
公开(公告)日：2024-05-02
申请号：US18500008
申请日：2023-11-01
发明人： Daniel J. Blumenthal , Jiawei Wang
CPC分类号： G02F1/0113 , G02B6/29338 , G02F2203/15
摘要： A Photonic molecule may include a first ring resonator that is tunable by a first piezoelectric actuator. A Photonic molecule may include a second ring resonator that is tunable by a second piezoelectric actuator, wherein the second ring resonator optically coupled to the first ring resonator. A Photonic molecule may include a third ring resonator that is tunable by a third piezoelectric actuator, wherein the third ring resonator is optically coupled to the first ring resonator and the second ring resonator. A Photonic molecule may include a waveguide optically coupled to the first ring resonator.
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公开(公告)号：US20240337791A1
公开(公告)日：2024-10-10
申请号：US18542497
申请日：2023-12-15
IPC分类号： G02B6/293
CPC分类号： G02B6/29343
摘要： Systems and methods for fast switchable optical filters with high extinction ratio are described. The fast switchable and high extinction ratio optical filters can be based on coupled ultra-high quality factor resonators that are actuated using stress-optical actuators.
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公开(公告)号：US20240322523A1
公开(公告)日：2024-09-26
申请号：US18499768
申请日：2023-11-01
发明人： Daniel J. Blumenthal , Jiawei Wang , Kaikai Liu
IPC分类号： H01S5/0683
CPC分类号： H01S5/0683
摘要： Systems and methods for photonic integrated laser stabilization that implements one stress-optic modulators in a Pound-Drever-Hall configuration without the complexity or power consumption and loss tradeoffs of conventional bulky acousto-optic modulator (AOM) frequency shifters and electro-optic modulator (EOM) phase modulators are described.
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公开(公告)号：US20240213735A1
公开(公告)日：2024-06-27
申请号：US18394626
申请日：2023-12-22
发明人： Andrei Isichenko , Nitesh Chauhan , Jiawei Wang , Mark Harrington , Kaikai Liu , Daniel J. Blumenthal
CPC分类号： H01S3/137 , H01S3/1305
摘要： A device may at least one laser with a first optical frequency the at least one laser stabilized to a at least one frequency reference, wherein the at least one laser is locked to the at least one frequency reference. A device may at least one photodiode and at least one laser current servo for locking the at least one laser to the at least one frequency reference. A device may at least one modulator configured to modulate a resonator, wherein the at least one frequency reference is a resonator, the resonator comprising a waveguide core and a tuner, wherein the tuner is laterally offset from the waveguide core.
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公开(公告)号：US20240344891A1
公开(公告)日：2024-10-17
申请号：US18393142
申请日：2023-12-21
CPC分类号： G01J9/02 , G02F1/212 , G02F1/225 , G01J2009/023 , G01J2009/0288 , G02F2203/15
摘要： A device may include a first waveguide with an optical input at a first port. A device may include a second waveguide. A device may include a first coupler that optically couples the first waveguide to the second waveguide at a first position. A device may include a waveguide delay arm. A device may include a second coupler that optically couples the first waveguide to the second waveguide at a second position, the second position different from the first position.
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公开(公告)号：US20240210625A1
公开(公告)日：2024-06-27
申请号：US18395038
申请日：2023-12-22
发明人： Debapam Bose , Jiawei Wang , Daniel J. Blumenthal
IPC分类号： G02B6/136
CPC分类号： G02B6/136 , C23C16/401
摘要： Disclosed herein is methods for fabricating ultra-low loss waveguides. One particular method may include: preparing a substrate including a lower cladding layer in a deposition chamber; flowing precursors including deuterated silane and nitrogen onto the lower cladding layer in the deposition chamber; subjecting the precursors to an inductively coupled plasma-plasma enhanced chemical vapor deposition (ICP-PECVD) process which disassociates the deuterated silane and nitrogen and deposits waveguide material of silicon nitride or silicon oxynitride onto the lower cladding layer; patterning the waveguide material into a patterned waveguide material; and depositing a top cladding layer on the patterned waveguide material, wherein the ICP-PECVD process occurs at a temperature less than or equal to 250° C. Advantageously, the ICP-PECVD process allows for deposition of low hydrogenated deposition of material layers which may allow for low temperature fabrication of ultra-low loss waveguides.
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公开(公告)号：US20240203616A1
公开(公告)日：2024-06-20
申请号：US18542341
申请日：2023-12-15
IPC分类号： G21K1/00
CPC分类号： G21K1/003
摘要： A device may include an atomic cell with a first wall. A device may include a photonic integrated circuit positioned parallel to the atomic cell first wall, the photonic integrated circuit comprising: a set of three grating emitters mounted on the photonic integrated circuit around a circumference with a spacing of around 120 degrees, wherein each grating emitter is etched to emit free-space beams on to the first wall of the atomic cell at a selected angle, wherein the selected angle in combination with the circumference results in the set of free-space beams intersecting at a location inside the atomic cell.
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