公开(公告)号：US20090214218A1

公开(公告)日：2009-08-27

申请号：US12289866

申请日：2008-11-06

Applicant: Hideaki Okayama

Inventor： Hideaki Okayama

IPC: H04J14/08

CPC classification number: H04Q11/0003 ,  G02F1/0126 ,  G02F2201/205 ,  G02F2202/32 ,  G02F2203/15 ,  G11C13/047

Abstract: An optical buffer device includes plural optical memory elements that are capable of holding light and an optical delay element. The plural optical memory elements are arranged on an optical path through which signal light and control light propagate in mutually opposite directions. Further, the optical delay element is disposed between the optical memory elements that are adjacent to each other. The optical delay element imparts different delays to the signal light and the control light. According to a preferred exemplary embodiment of this optical buffer device, each of the optical memory elements includes an optical waveguide through which the signal light and the control light propagate and an optical resonator that is disposed in proximity to this optical waveguide, and a coupling between the optical waveguide and the optical resonator is generated or cancelled depending on whether or not the control light is inputted.

Abstract translation: 光缓冲器件包括能够保持光的光学存储元件和光延迟元件。 多个光存储器元件布置在光路上，信号光和控制光通过该光路相互相反的方向传播。 此外，光学延迟元件设置在彼此相邻的光学存储元件之间。 光延迟元件对信号光和控制光赋予不同的延迟。 根据该光学缓冲器件的优选示例性实施例，每个光学存储器元件包括光波导，信号光和控制光传播通过该光波导，以及设置在该光波导附近的光学谐振器，以及耦合 根据输入的控制光是否产生或消除光波导和光谐振器。

公开(公告)号：US12038668B2

公开(公告)日：2024-07-16

申请号：US17786775

申请日：2020-12-21

Applicant: NKT PHOTONICS A/S

Inventor： Thomas Vestergaard Andersen

IPC: G02F1/35 ,  G02F1/365 ,  H01S3/00

CPC classification number: G02F1/3528 ,  G02F1/365 ,  H01S3/0085 ,  H01S3/0092 ,  G02F2201/20 ,  G02F2201/205

Abstract: A light source, including: a pulse generator for providing an initial sequence of light pulses, the pulse generator including an optical source for producing optical pulses; and a modulator in communication with the optical source for increasing or decreasing the selected number of pulses provided by the pulse generator in the selected time period; first and second optical arms, for propagating, respectively, first and second sequences of light pulses, wherein the first optical arm includes a first manipulator configured to generate the first sequence of light pulses from the initial sequence of light pulses, wherein the light source includes a nonlinear optical element arranged to receive the first sequence of light pulses or the second sequence of light pulses, and an optical switch arranged to switch either the first sequence of light pulses or the second sequence of light pulses for reception by the nonlinear optical element.

公开(公告)号：US11843417B2

公开(公告)日：2023-12-12

申请号：US18197751

申请日：2023-05-16

Applicant: ZHEJIANG LAB

Inventor： Qiang Zhang ,  Hui Yu

IPC: H04B10/60 ,  G02F1/295 ,  G02F1/31 ,  G02F1/313

CPC classification number: H04B10/60 ,  G02F1/2955 ,  G02F1/311 ,  G02F1/3131 ,  G02F2201/06 ,  G02F2201/205 ,  G02F2201/307 ,  G02F2202/10 ,  G02F2203/58 ,  G02F2203/70

Abstract: A programmable two-dimensional simultaneous multi-beam optically operated phased array receiver chip is manufactured based on silicon-on-insulator (SOI) and indium phosphide (InP) semiconductor manufacturing processes, including the SiN process. The InP-based semiconductor is used for preparing a laser array chip and a semiconductor optical amplifier array chip, the SiN is used for preparing an optical power divider, and the SOI semiconductor is used for preparing a silicon optical modulator, a germanium-silicon detector, an optical wavelength multiplexer, a true delay line, and other passive optical devices. The whole integration of the receiver chip is realized through heterogeneous integration of the InP-based chip and the SOI-based chip. Simultaneous multi-beam scanning can be realized through peripheral circuit programming control. The chip not only can realize two-dimensional multi-beam scanning, but also has strong expansibility, such that the chip can be used for ultra-wideband high-capacity wireless communication and simultaneous multi-target radar recognition systems.

公开(公告)号：US08200047B1

公开(公告)日：2012-06-12

申请号：US12466338

申请日：2009-05-14

Applicant: Anthony C. Kowalczyk

Inventor： Anthony C. Kowalczyk

IPC: G02F1/01 ,  G02B6/12 ,  G02B6/26 ,  G02B6/42

CPC classification number: G02B6/2861 ,  G02B6/12004 ,  G02B6/12009 ,  G02F1/292 ,  G02F1/313 ,  G02F2201/20 ,  G02F2201/205 ,  G02F2202/20 ,  G02F2203/24 ,  H01Q3/2676 ,  H01Q3/2682 ,  H04J14/0223 ,  H04J14/08

Abstract: Described are systems and methods that provide tunable true time delay of a signal using a compact photonic circuit. The photonic circuit comprises a plurality of waveguides, in which each waveguide corresponds to a different time delay. A particular one of the waveguides corresponding to a desired time delay is selected by tuning the wavelength of a tunable laser. Additional photonic circuits can be used to provide additional selectable time delays.

Abstract translation: 描述了使用紧凑型光子电路提供信号的可调谐真实时间延迟的系统和方法。 光子电路包括多个波导，其中每个波导对应于不同的时间延迟。 通过调谐可调激光器的波长来选择对应于所需时间延迟的特定一个波导。 可以使用额外的光子电路来提供额外的可选择的时间延迟。

公开(公告)号：US07893395B2

公开(公告)日：2011-02-22

申请号：US10167641

申请日：2002-05-28

Applicant: Christopher Ralph Pescod ,  Andrew James Smith

Inventor： Christopher Ralph Pescod ,  Andrew James Smith

IPC: G01J1/04

CPC classification number: H04B10/112 ,  G01S7/38 ,  G02B6/2861 ,  G02F1/0134 ,  G02F2201/02 ,  G02F2201/205

Abstract: This invention relates to optical delay lines, particularly to modifying an optical signal passing through an optical delay line. A method of applying a Doppler shift to an optical signal as it passes through an optical delay line is provided, the method comprising the step of progressively altering a property of the optical delay line during passage of the optical signal therethrough such that the time taken for the optical signal to pass therethrough is progressively lengthened or progressively shortened for successive portions of the optical signal. In addition, an optical delay line is provided that may be used in accordance with the above method.

Abstract translation: 本发明涉及光延迟线，特别涉及修改通过光延迟线的光信号。 提供了一种当光信号通过光延迟线时将多普勒频移应用于光信号的方法，所述方法包括在光信号通过期间逐渐改变光延迟线的特性的步骤，使得所需的时间 对于光信号的连续部分，通过的光信号被逐渐地延长或逐渐缩短。 此外，提供可以根据上述方法使用的光学延迟线。

公开(公告)号：US20060016969A1

公开(公告)日：2006-01-26

申请号：US10167641

申请日：2002-05-28

Applicant: Christopher Pescod ,  Andrew Smith

Inventor： Christopher Pescod ,  Andrew Smith

IPC: G01J5/08 ,  G01J1/04 ,  H01J3/14 ,  G01J1/42

CPC classification number: H04B10/112 ,  G01S7/38 ,  G02B6/2861 ,  G02F1/0134 ,  G02F2201/02 ,  G02F2201/205

Abstract: This invention relates to optical delay lines, particularly to modifying an optical signal passing through an optical delay line. A method of applying a Doppler shift to an optical signal as it passes through an optical delay line is provided, the method comprising the step of progressively altering a property of the optical delay line during passage of the optical signal therethrough such that the time taken for the optical signal to pass therethrough is progressively lengthened or progressively shortened for successive portions of the optical signal. In addition, an optical delay line is provided that may be used in accordance with the above method.

Abstract translation: 本发明涉及光延迟线，特别涉及修改通过光延迟线的光信号。 提供了一种当光信号通过光延迟线时将多普勒频移应用于光信号的方法，所述方法包括在光信号通过期间逐渐改变光延迟线的特性的步骤，使得所需的时间 对于光信号的连续部分，通过的光信号被逐渐地延长或逐渐缩短。 此外，提供可以根据上述方法使用的光学延迟线。

公开(公告)号：US06580540B1

公开(公告)日：2003-06-17

申请号：US09587126

申请日：2000-06-02

Applicant: Stephen P. Palese

Inventor： Stephen P. Palese

IPC: H04J1408

CPC classification number: G02F1/0126 ,  G02F1/0338 ,  G02F2201/205 ,  G02F2202/022 ,  G02F2203/50

Abstract: A time compensation architecture for use with a plurality of optical signals is disclosed. It comprises means for receiving the plurality of optical signals, optical means for selectively delaying the propagation of each of the plurality of optical signals, and means for outputting the time delayed optical signals. The delay may be achieved by changing the indices of refraction or the material lengths of the elements and can either be an active or a passive compensation technique.

Abstract translation: 公开了一种用于多个光信号的时间补偿架构。 它包括用于接收多个光信号的装置，用于选择性地延迟多个光信号中的每一个的传播的光学装置，以及用于输出时间延迟的光信号的装置。 可以通过改变折射率或元件的材料长度来实现延迟，并且可以是有源或无源补偿技术。

公开(公告)号：US20230291483A1

公开(公告)日：2023-09-14

申请号：US18197751

申请日：2023-05-16

Applicant: ZHEJIANG LAB

Inventor： Qiang ZHANG ,  Hui YU

IPC: H04B10/60 ,  G02F1/295 ,  G02F1/31 ,  G02F1/313

CPC classification number: H04B10/60 ,  G02F1/2955 ,  G02F1/311 ,  G02F1/3131 ,  G02F2202/10 ,  G02F2201/307 ,  G02F2203/70 ,  G02F2201/06 ,  G02F2201/205 ,  G02F2203/58

Abstract: A programmable two-dimensional simultaneous multi-beam optically operated phased array receiver chip is manufactured based on silicon-on-insulator (SOI) and indium phosphide (InP) semiconductor manufacturing processes, including the SiN process. The InP-based semiconductor is used for preparing a laser array chip and a semiconductor optical amplifier array chip, the SiN is used for preparing an optical power divider, and the SOI semiconductor is used for preparing a silicon optical modulator, a germanium-silicon detector, an optical wavelength multiplexer, a true delay line, and other passive optical devices. The whole integration of the receiver chip is realized through heterogeneous integration of the InP-based chip and the SOI-based chip. Simultaneous multi-beam scanning can be realized through peripheral circuit programming control. The chip not only can realize two-dimensional multi-beam scanning, but also has strong expansibility, such that the chip can be used for ultra-wideband high-capacity wireless communication and simultaneous multi-target radar recognition systems.

公开(公告)号：US20140056023A1

公开(公告)日：2014-02-27

申请号：US13977913

申请日：2012-09-21

Applicant: Takemi Hasegawa

Inventor： Takemi Hasegawa

IPC: G02F1/365

CPC classification number: G02F1/365 ,  G02F2001/3528 ,  G02F2201/205

Abstract: A broadband light source that outputs broadband light with reduced peak power includes a pulsed light source, an optical fiber, a band-elimination filter, and a light echo unit. The optical fiber receives pulsed light output from the pulsed light source, expands the spectrum of the pulsed light by a nonlinear optical effect within the fiber to generate supercontinuum light, and outputs the supercontinuum light. The light echo unit has a plurality of optical paths between an input terminal and an output terminal thereof. At least one optical path in the plurality of optical paths serves as a loop optical path. The light echo unit receives, via the input terminal, the supercontinuum light output from the optical fiber and having traveled through the band-elimination filter, guides the supercontinuum light through the plurality of optical paths, and outputs the supercontinuum light guided by the plurality of optical paths from the output terminal.

Abstract translation: 输出具有降低的峰值功率的宽带光的宽带光源包括脉冲光源，光纤，带除滤波器和光回波单元。 光纤接收从脉冲光源输出的脉冲光，通过光纤内的非线性光学效应使脉冲光的光谱膨胀，产生超连续光，并输出超连续光。 光回波单元在输入端子和输出端子之间具有多个光路。 多个光路中的至少一个光路用作环路光路。 光回波单元经由输入端子接收从光纤输出的超连续光并穿过带除滤波器，引导超连续光通过多条光路，并输出由多条光引导的超连续光 输出端子的光路。

公开(公告)号：US07705287B2

公开(公告)日：2010-04-27

申请号：US12247409

申请日：2008-10-08

Applicant: Masato Tanaka

Inventor： Masato Tanaka

IPC: G01J4/00

CPC classification number: G02F1/365 ,  G02F2001/3528 ,  G02F2201/20 ,  G02F2201/205

Abstract: A broadband light source unit that produces a supercontinuum lightwave having a flat spectral form and has a light source that outputs a first source lightwave, which is a pulse lightwave having periodic pulses with a constant intensity, an intensity modulator that receives the first source lightwave, produces a second source lightwave having pulses whose intensities are different from one another, and outputs it, and a nonlinear optical medium section that receives the second source lightwave, produces a supercontinuum lightwave having a wavelength band broadened through a nonlinear optical phenomenon, and outputs it. An optical analyzer includes a light-applying section that applies a supercontinuum lightwave outputted from the broadband light source unit to a light-receiving region of a measurement-undergoing object, and an image pickup section that receives a lightwave generated at the light-receiving region by the application of the supercontinuum lightwave and picks up an image of the measurement-undergoing object.

Abstract translation: 一种宽带光源单元，其产生具有平坦光谱形式的超连续光波，并具有输出作为具有恒定强度的周期脉冲的脉冲光波的第一源光波的光源，接收第一源光波的强度调制器， 产生具有强度彼此不同的脉冲的第二源光波，并输出，并且接收第二源光波的非线性光学介质部产生具有通过非线性光学现象变宽的波长带的超连续光波，并输出 。 一种光学分析仪包括：将从宽带光源单元输出的超连续光波应用于测量对象的受光区域的摄像部;以及摄像部，其接收在受光区域产生的光波 通过应用超连续光波，并拾取测量对象的图像。