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公开(公告)号：EP4303645A1
公开(公告)日：2024-01-10
申请号：EP22783956.0
申请日：2022-04-01
发明人： DONG, Zhen , LI, Yanbo
摘要： A PN junction, a method for preparing a PN junction, and a modulator are disclosed. The PN junction includes a slab waveguide layer (401) and a plurality of waveguides (402) arranged on the slab waveguide layer (401) at intervals along a specific direction. The slab waveguide layer (401) includes P-type doped regions (401-1) and N-type doped regions (401-2) that are alternately arranged in the specific direction, and a carrier-depletion region (403) in a shape of S connected head to tail along the specific direction is formed at a boundary between the two types of regions. Each of the plurality of waveguides (402) arranged at intervals includes a P-type doped region (402-1) and an N-type doped region (402-2), and one carrier-depletion region (403) is formed at a boundary between the two regions. Projections of the P-type doped regions (402-1), the N-type doped regions (402-2), and the carrier-depletion regions (403) of the plurality of waveguides (402) arranged at intervals on a surface of a slab waveguide region basically coincide with projections of corresponding regions of the slab waveguide layer (401) on the surface of the slab waveguide region. The PN junction has high modulation efficiency and a low optical loss. The PN junction is implemented through ion-implantation doping at an inclined angle, so that preparation costs of the PN junction can be reduced.
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公开(公告)号：EP3617763A1
公开(公告)日：2020-03-04
申请号：EP17910824.6
申请日：2017-05-23
发明人： DONG, Zhen , LIU, Jun , ZENG, Li , ZHAO, Qing , SONG, Xiaolu
IPC分类号： G02B6/42
摘要： This application discloses a module structure and a fabrication method therefor. The optical module structure includes: a substrate; an optical chip and an electrical chip that are fixedly connected to the substrate; and an optical coupling structure fixedly connected to the optical chip. A side that is of the optical chip and that faces the substrate has a first reference plane, and at least one first alignment mark is provided on the first reference plane; and the optical coupling structure has a second reference plane, and at least one second alignment mark is provided on the second reference plane. The first reference plane is aligned with the second reference plane, and the first alignment mark is aligned with the second alignment mark. A hybrid encapsulation manner is used for the optical module structure, so that encapsulation density of the optical module structure is increased, and channels of the optical module structure are increased when an area is the same, to support an optical interconnection for a large amount of data. In addition, a passive alignment manner that is convenient and quick is used for the optical module structure, so that an error caused by manual alignment is avoided, and alignment precision is relatively high.
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公开(公告)号：EP3477362A1
公开(公告)日：2019-05-01
申请号：EP16909229.3
申请日：2016-07-21
发明人： LI, Yanbo , SONG, Xiaolu , DONG, Zhen , JI, Ruiqiang , FU, Shengmeng , ZENG, Li
IPC分类号： G02F1/015
摘要： An electro-optic modulator includes an input waveguide (11), a beam splitter (12) connected to the input waveguide (11), a modulation arm that is disposed on each branch of the beam splitter (12) and that is configured to modulate a signal. Each modulation arm is correspondingly disposed with a double-layer electrode, a first layer electrode (21) of the double-layer electrode is a high-frequency traveling wave electrode that is configured to change carrier concentration in the modulation arm, a second layer electrode (26) is a direct current electrode having an inductor function, and an inductor formed in the second layer electrode (26) is connected to a high-frequency traveling wave electrode of the electro-optic modulator. The second layer electrode (26) uses a direct current electrode that can form an inductor. In this way, the electro-optic modulator has some functions of a bias tee, so that integration of the electro-optic modulator can be further improved without affecting performance of the electro-optic modulator, high-density packaging layout difficulty and cabling pressure can be effectively reduced, and cabling and packaging of a multi-channel high-speed signal on a base board can be implemented.
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4.发明公开
公开(公告)号：EP4428609A1
公开(公告)日：2024-09-11
申请号：EP23759107.8
申请日：2023-02-18
发明人： DONG, Zhen , ZHANG, Peijie , LI, Yanbo
IPC分类号： G02F1/21
摘要： A Mach-Zehnder MZ modulator (200), a multi-channel MZ modulator, and an optical transmitting apparatus (900) are provided. The MZ modulator (200) includes a splitter (201), two modulation arms, and a coupler (203). The two modulation arms include two optical transmission waveguides (202a, 202b) and two electrodes (204a, 204b). The splitter (201) is configured to: perform power splitting on an optical carrier to obtain two optical carriers, and input the two optical carriers to input ports of the two optical transmission waveguides (202a, 202b), respectively. The two electrodes (204a, 204b) include a first electrode (204a) and a second electrode (204b), which are respectively configured to: receive two electrical signals (S+, S-) that are differential signals, and apply the two electrical signals (S+, S-) to the two optical transmission waveguides (202a, 202b) to change phases of the two optical carriers. The first electrode (204a) is connected to two sides that are farther from each other of the two optical transmission waveguides (202a, 202b), and the second electrode (204b) is connected to two sides that are closer to each other of the two transmission waveguides (202a, 202b). Two input ends of the coupler (203) are connected to output ports of the two optical transmission waveguides (202a, 202b), respectively, and are configured to: perform interference on the optical carriers whose phases are changed via the two modulation arms, and output the optical carriers.
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公开(公告)号：EP3866355A1
公开(公告)日：2021-08-18
申请号：EP19878188.2
申请日：2019-10-30
发明人： XU, Benbo , ZHAO, Jialin , DONG, Zhen
IPC分类号： H04B10/03
摘要： This application discloses a light source switching apparatus, method, and system. In an implementation, the apparatus includes a first multi-mode interference (MMI) coupler, a second MMI coupler, and a phase modulator, where: the first MMI coupler includes four ports, where a first port and a second port are located on one side of the first MMI coupler, and a third port and a fourth port are located on the other side of the first MMI coupler; the second MMI coupler includes three ports, where a fifth port and a sixth port are located on one side of the second MMI coupler, and a seventh port is located on the other side of the second MMI coupler; the first port and the second port are connected to the fifth port and the sixth port in a one-to-one correspondence, to form two connections; the phase modulator is disposed on any one of the two connections, and the seventh port is configured to connect to an optical modulator; both the third port and the fourth port are configured to connect to a light source that outputs continuous light energy; and the phase modulator is configured to select one light source from the two light sources for output from the seventh port. The light source switching apparatus in this application can implement fast light source module switching.
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公开(公告)号：EP3553818A1
公开(公告)日：2019-10-16
申请号：EP17898385.4
申请日：2017-02-28
发明人： GAO, Lei , ZENG, Li , SONG, Xiaolu , DONG, Zhen
IPC分类号： H01L25/00
摘要： This application provides an optical/electrical hybrid package assembly, including: a mother PCB; a first daughter-PCB, the first daughter-PCB being disposed on one of surfaces of the mother PCB; an optical chip, disposed on one surface of the first daughter-PCB; and an electrical chip, disposed on the other surface of the first daughter-PCB. In the optical/electrical hybrid package assembly provided in this application, while a high integrated level of a device is ensured, working stability and reliability of the optical chip and the electrical chip are effectively improved.
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公开(公告)号：EP3968070A1
公开(公告)日：2022-03-16
申请号：EP20818550.4
申请日：2020-04-05
发明人： XU, Benbo , LI, Yanbo , DONG, Zhen
IPC分类号： G02B6/42
摘要： This application discloses an optical source switching apparatus and method. The apparatus includes one or more first optical sources, an optical cross-connect device, one or more second optical sources, and at least one first coupler. The optical cross-connect device is connected to the one or more first optical sources, the optical cross-connect device is further connected to the first coupler, and the first coupler is connected to the second optical source; both the first optical source and the second optical source are configured to output continuous optical energy, and the optical cross-connect device is configured to enable optical energy output by at least one of the one or more first optical sources to enter the first coupler when at least one of the one or more second optical sources fails; and the first coupler is configured to implement beam splitting of the optical energy output by the first optical source and/or the second optical source.
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8.发明公开
公开(公告)号：EP3869710A1
公开(公告)日：2021-08-25
申请号：EP18941010.3
申请日：2018-11-24
发明人： DONG, Zhen , LI, Yanbo , SONG, Xiaolu
IPC分类号： H04B10/25 , G02B6/27 , H04B10/61 , H04B10/516
摘要： This application discloses a polarization processing optical device, method, and system. In specific implementation, the polarization processing optical device includes a polarization beam splitter (PBS), a polarization rotator (PR), a coupler, and a phase tuner (PT), where one port of the PBS is configured to input a continuous light source, and the other two ports of the PBS are respectively connected to the PR and one port of the coupler; and the PR is connected to another port of the coupler; the PT is disposed on a connection between the PBS and the coupler or a connection between the PR and the coupler; and at least one port of the coupler is configured to output single-polarization light, and the PT is configured to control output optical power of the first coupler. The polarization processing optical device may convert an optical energy in a random polarization state into an optical energy in a single polarization state, and realize optical splitting with a specific proportion. According to the apparatus, an optical transmitter and/or receiver may use a conventional optical fiber to connect a light source and an optical modulator, so that costs are reduced.
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公开(公告)号：EP3862801A1
公开(公告)日：2021-08-11
申请号：EP19880264.7
申请日：2019-10-30
发明人： XU, Benbo , SONG, Xiaolu , LI, Yanbo , DONG, Zhen , GAO, Lei , SUO, Jing
IPC分类号： G02B6/42
摘要： A light source module (200) for use in the field of optical communications is provided. The light source module (200) includes a substrate (202), a light source (201), an optical interface (203), and an electrical interface (204). The light source (201) and the electrical interface (204) are disposed on the substrate (202). The electrical interface (204) is configured to supply power to the light source (201). The optical interface (203) is coupled to the light source (203), and the optical interface (203) is configured to output continuous light energy emitted by the light source (201). The optical interface (203) and the electrical interface (204) face a same direction. The light source module is detachably connected to a panel. The light source module (200) has advantages of reducing component replacement cost for an optical communications device, extending a service lifespan of the light source (201), and reducing replacement complexity of failed components.
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10.发明公开
公开(公告)号：EP3809177A1
公开(公告)日：2021-04-21
申请号：EP18925780.1
申请日：2018-07-12
发明人： LIU, Jun , DONG, Zhen , GAO, Lei , SONG, Xiaolu
摘要： Embodiments of this application provide an optical coupling apparatus, an optical module, and a communications device. The optical coupling apparatus includes: an optical fiber component, including a plurality of optical fibers and an optical fiber fixing block, where the plurality of optical fibers are fixed to the optical fiber fixing block, a first end face is disposed on the optical fiber fixing block, at least some of the optical fibers include a plug end, and the plug ends protrude from the first end face; and an optical write waveguide block, including a main body and a plurality of waveguides corresponding to fiber cores of the plurality of optical fibers, where the plurality of waveguides are disposed in the main body, a second end face is disposed on the main body, coupling holes that are in a one-to-one correspondence with the plug ends are disposed on the second end face in a recessed manner, and the coupling holes are formed when ends of the waveguides are recessed from the second end face; and when the second end face and the first end face are connected to each other, the plug ends of the at least some of the optical fibers are inserted into the coupling holes in a one-to-one correspondence manner, so that the fiber cores of the plurality of optical fibers are coupled to and aligned with the plurality of waveguides in a one-to-one correspondence manner, thereby implementing optical signal transmission between the optical fiber component and the optical write waveguide block.
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