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    • 5. 发明申请
    • MULTI-MODE INTERFERENCE WAVEGUIDE BASED SWITCH
    • 多模干扰波形开关
    • WO2003027740A1
    • 2003-04-03
    • PCT/SE2002/001766
    • 2002-09-27
    • TELEFONAKTIEBOLAGET L M ERICSSONAUGUSTSSON, Torsten
    • AUGUSTSSON, Torsten
    • G02B6/28
    • G02F1/313G02B6/2813G02B6/3516G02B6/3546G02B6/356G02B6/3576G02F2001/217
    • The present invention relates to device for space selective switching of an optical signal from an input access waveguide to a first selected output access waveguide. Said device comprising a multi-mode interference (MMI) waveguide having at a first side a number, N, of accesses for connection of access waveguides. Said MMI waveguide having a length, in light propagating direction, so that an image at the i:th, i≤ N access waveguide propagating into said MMI waveguide will produce N self-images at a second side opposite to said first side, where N is an integer greater than 1. Said device further comprises reflective means located in said MMI waveguide close to said second side, arranged to reflect said N self-images towards said first side of said MMI waveguide, and means, arranged at said second side, for adjusting the phase of each of said self-images to create a single self-image at said selected output access waveguide.
    • 本发明涉及用于从输入接入波导到第一选择的输出接入波导的光信号的空间选择性切换的装置。 所述装置包括多模干涉(MMI)波导,其在第一侧具有用于连接接入波导的数量N的访问。 所述MMI波导具有在光传播方向上的长度,使得传播到所述MMI波导中的第i,i,N个访问波导上的图像将在与所述第一侧相对的第二侧产生N个自身图像,其中 N是大于1的整数。所述装置还包括位于靠近所述第二侧的所述MMI波导中的反射装置,被布置成朝向所述MMI波导的所述第一侧反射所述N个自身图像;以及装置,布置在所述第二侧 用于调整每个所述自身图像的相位以在所述选择的输出存取波导处产生单个自身图像。
    • 8. 发明申请
    • MACH-ZEHNDER WITH INDIVIDUALLY OPTIMIZED COUPLERS FOR OPTICAL SP LITTING AT THE INPUT AND OPTICAL COMBINING AT THE OUTPUT
    • MACH-ZEHNDER具有独立优化的耦合器,用于在输入和光学组合的输出处进行光学瞄准
    • WO2003016988A1
    • 2003-02-27
    • PCT/US2002/025098
    • 2002-08-06
    • SCOTT, David, C.VANG, Timothy, A.KALLURI, Srinath
    • SCOTT, David, C.VANG, Timothy, A.KALLURI, Srinath
    • G02F1/03
    • G02F1/225G02F1/2257G02F2001/217
    • A Mach-Zehnder modulator (5) with index tuned multimode interference couplers (20) and (70) comprising a substrate, an optical input waveguide on the substrate for receiving a light signal, and an input multimode interference coupler. The input multimode interference coupler splits the received light and propagates it down two separate waveguides (30) and (40). Also, the input multimode interference coupler contains electrodes that allow the index of refraction to be tuned. These waveguides contain phase shift regions so that the light signals can be combined at the output multimode interference coupler out of phase. This allows the modulation of the light signal. Also, the output multimode interference coupler contains electrodes that allow the index of refraction to be tuned. The modulated light signal is then outputted through an output waveguide. The tuning of the index of refraction for the input and output multimode interference couplers eliminates the sensitivity of the areas to variations in their geometry.
    • 具有索引调谐多模干涉耦合器(20)和(70)的马赫 - 曾德调制器(5)包括基板,用于接收光信号的基板上的光输入波导和输入多模干涉耦合器。 输入多模干涉耦合器分离接收的光并将其传播到两个独立的波导(30)和(40)上。 此外,输入多模干扰耦合器包含允许调整折射率的电极。 这些波导包含相移区域,使得光信号可以在输出多模干扰耦合器异相时被组合。 这允许光信号的调制。 此外,输出多模干涉耦合器包含允许调整折射率的电极。 然后通过输出波导输出调制光信号。 输入和输出多模干涉耦合器的折射率调整消除了区域对其几何变化的敏感性。
    • 9. 发明申请
    • A WAVELENGTH SELECTIVE MODULATOR
    • 波长选择调制器
    • WO00049456A1
    • 2000-08-24
    • PCT/SE2000/000236
    • 2000-02-07
    • G02B6/12G02B6/28G02B6/34G02F1/313G02F1/225G02B6/293G02F1/295H04B10/20H04J14/02
    • G02B6/29317G02B6/12007G02B6/2813G02B6/29355G02B6/29395G02B2006/12107G02B2006/12142G02F1/3136G02F2001/217
    • The invention relates to a device and to a method for modulating optical wavelength channels and where each wavelength channel can be modulated separately and independently of other wavelength channels. The optical wavelength channels are switched to at least one access waveguide. The wavelength channels are then transmitted through a first multimode waveguide (10) and imaged on at least two connecting waveguides. The optical wavelength channels are then transmitted to at least one wavelength selective cross-switch structure (2, 4, 6, 8). In each wavelength selective cross-switch structure the relative phase of a reflected wavelength channel is changed two times by two phase control elements (C1, C2, D1, D2, E1, E2, F1, F2) while the relative phase of the transmitted optical channel remains essentially unchanged after the wavelength selective cross-switch structure. The phase relationship between the optical signal in respective access waveguides to the second multimode waveguide (20) determines where the optical signal willbe focused on the output.
    • 本发明涉及一种用于调制光学波长信道的装置和方法,并且其中每个波长信道可以与其它波长信道分开且独立地进行调制。 光波长信道被切换到至少一个接入波导。 然后,波长通道通过第一多模波导(10)传输并在至少两个连接波导上成像。 然后将光学波长信道传输到至少一个波长选择性交叉开关结构(2,4,6,8)。 在每个波长选择性交叉开关结构中,反射波长通道的相对相位由两个相位控制元件(C1,C2,D1,D2,E1,E2,F1,F2)改变两次,而透射光学器件的相对相位 在波长选择性交叉开关结构之后,通道保持基本不变。 在第二多模波导(20)的各个接入波导中的光信号之间的相位关系确定光信号将聚焦于输出的位置。