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    AWG SUPPORTING MULTIPLE FREQUENCY BANDS AND CHANNEL PLANS
    3.
    发明授权
    AWG SUPPORTING MULTIPLE FREQUENCY BANDS AND CHANNEL PLANS 有权

    公开(公告)号：EP2628037B1

    公开(公告)日：2018-05-23

    申请号：EP11833344.2

    申请日：2011-10-12

    申请人： Gemfire Corporation

    发明人： BULTHUIS, Hindrik, Freerk

    IPC分类号： G02B6/28 ,  G02B6/12 ,  H04J14/02

    CPC分类号： G02B6/12016 ,  G02B6/12014 ,  H04J14/0282

    摘要： Roughly described, an AWG has two or more inputs and multiple outputs. By selecting the angular spacing among the inputs, and by designing the different inputs to address different orders of the waveguide array, the device can be designed such that the inputs will carry frequency bands having any desired center frequency spacing and any desired same or different channel spacing. For example a dual input device can be designed such that one input carries C-band channels and the other input carries L-band channels, and both have channel spacings that match or substantially match the ITU grid.

    Optical multi/demultiplexing circuit equipped with phase generating device
    8.
    发明公开
    Optical multi/demultiplexing circuit equipped with phase generating device 有权
    波分复用/解复用电路与反相产生装置

    公开(公告)号：EP1830207A3

    公开(公告)日：2007-09-12

    申请号：EP07107515.4

    申请日：2003-12-04

    申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION

    发明人： Mizuno, Takayuki ,  Kitoh, Tsutomu ,  Oguma, Manabu ,  Inoue, Yasuyuki

    IPC分类号： G02B6/34

    CPC分类号： G02B6/12019 ,  G02B6/12007 ,  G02B6/12016 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/29353 ,  G02B6/29355 ,  G02B6/2938

    摘要： An optical multi/demultiplexing circuit that is arranged to multi/demultiplex a plurality of optical signals in a whole passband, the whole passband being configured with a plurality of passbands, the optical multi/demultiplexing circuit comprising: at least two optical multi/demultiplexing devices (111,112), wherein a first one includes at least one input section and at least two output sections and a second one includes at least two input sections and a plurality of output sections, and at least one optical delay line device (107) interposed between said optical multi/demultiplexing devices; characterized in that at least one of said optical multi/demultiplexing devices includes a phase generating device; wherein said phase generating device is arranged to generate an optical frequency-dependent phase defined as a phase difference between two optical signals output from two of said plurality of output sections of the optical multi/demultiplexing device, wherein one or more phase generating device is arranged to generate a resulting optical frequency dependent phase Φ which provides a quadratic or higher order polynomial optical frequency dependency or an optical frequency dependency according to a Gaussian function, and which sets an optical frequency period between said passbands and a center frequency of said whole passband at desired values independently.

    COMPOSANT OPTIQUE A FONCTION DE SEPARATION SPECTRALE
    9.
    发明授权
    COMPOSANT OPTIQUE A FONCTION DE SEPARATION SPECTRALE 有权
    光学组件对于不同波长的光谱分离

    公开(公告)号：EP1433006B1

    公开(公告)日：2006-02-08

    申请号：EP02800168.3

    申请日：2002-10-01

    申请人： YENISTA OPTICS SA

    发明人： FOUCHE, Jean-Baptiste

    IPC分类号： G02B6/34

    CPC分类号： G02B6/12016 ,  G02B6/12019 ,  G02B6/2551 ,  G02B6/2931 ,  G02B6/29362 ,  G02B6/29367 ,  G02B6/32 ,  G02B6/4203

    摘要： The invention relates to an optical component comprising at least one input guide element (1-4), at least one output guide element (5) and a spectral separation element (7) which is disposed between the input guide element(s) (1-4) and the output guide element(s) (5). The inventive component is characterised in that at least one of the input or output guide elements (1-5) comprises a fibre (1-5) containing a portion (21-25) which is designed to increase the mode range of a beam that it guides. According to the invention, the portion which is designed to increase the beam mode range can comprise a portion with a graded index, a portion having a core or gain size which varies radially and/or longitudinally, or a portion having a core or gain index which varies transversely and/or longitudinally.

    PHASAR WITH FLATTENED PASS-BAND
    10.
    发明授权
    PHASAR WITH FLATTENED PASS-BAND 有权
    与扁平通道曲线Phasar

    公开(公告)号：EP1226461B1

    公开(公告)日：2006-01-11

    申请号：EP00973004.5

    申请日：2000-11-01

    申请人： Gemfire Europe Limited

    发明人： BULTHUIS, Hindrick, Freerk ,  AMERSFOORT, Martin, Ronald ,  LAMING, Richard, Ian ,  VOLANTHEN, Mark ,  VAN DER VLIET, Frederik, Marcel

    IPC分类号： G02B6/34 ,  G02B6/293

    CPC分类号： G02B6/12016 ,  G02B6/12019 ,  G02B6/2813

    摘要： A passband-flattened phasar including two free space regions (48, 52) coupled by a plurality of waveguides (50) having predetermined differences between their lengths so as to act as an arrayed waveguide grating. The phasar is particularly useful in a wavelength-division multiplexed (WDM) optical communication system. The input waveguide is coupled to the first free space region through a Mach-Zehnder interferometer (MZI) (64) having two waveguide arms (66, 68) of differing lengths receiving approximately equal amounts of the input signal. The arms differ in lengths so as to produce a phase difference between them. In WDM network, the waveguide arm produces a phase difference such that the free spectral range of the MZI equals the wavelength channel spacing, such that the wavelength response of the MZI is the same for each of the WDM wavelengths. The two outputs of the MZI are coupled into the input end of a multi-mode interferometer (MMI) (44) with a lateral separation which provides a lateral spatial dispersion in the MMI equalling the lateral spatial dispersion of the conventional phasar. Thereby, a larger portion of the passband is equally passed through the phasar.