• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:SE0950331A1
    申请号:SE0950331
    申请日:2009-05-13
    公开日:2010-11-14
    发明作者:Jan-Olof Wesstroem；Dave Adams
    申请人:Syntune Ab；
    IPC主号:
    专利说明:

    The invention is described in more detail below, in part in connection with exemplary embodiments of the invention shown in the accompanying drawings, in which - Figure 1 shows a 1X2 MMI according to the prior art - Figure 2 shows a ZX2 MMI according to the prior art - Figure 3 shows a 1X2 MMI where the invention is applied - figure 4 shows a ZX2 MMI where the invention is applied - figure 5 shows a 2X2 MMI where the invention is applied - figure 6 shows a ZX2 MMI where the invention is applied - figure 7 shows a ZX2 MMI where the invention is applied.
    The present invention relates to an optical light divider comprising one or two input waveguides for light.
    According to the invention, the part of the light divider which comprises the input waveguide or the input waveguides passes into at most one output waveguide in the propagation direction of the incoming light.
    Furthermore, there is a surface 14; 25; 31l angled to the direction of propagation of the light in the part of the light divider which is opposite the input waveguide or input waveguides, which surface is present where the light divider has an image from incoming light and that there are no corners in said part.
    In a very preferred embodiment of the invention, an optical light divider 1 is meant; 2 comprising a 4 or two 6, 7 input waveguides for light and two output waveguides 8, 9; 10, ll for light. The part of the light divider l; 2 which comprises or is connected to the input waveguide 4 or the input waveguides 6, 7 merges into at most one output waveguide 8; lO. Furthermore, there is a capture waveguide 9; ll arranged to capture light passing out of the light divider at the point where a second output waveguide would have been located at a distance from the light divider 1; 2 and in the same direction as the said second output waveguide would have had. h: docworkkmsöksextdoc, 2009-05-13 090075EN 10 15 20 25 30 35 Figure 2 shows a conventional 2X2 MMI (Multi Mod Interferometer) with two input waveguides 26, conductors 28, 29. light. 27 and two output wave- The arrows in Figure 3 mark the input and output The MMIn shown in Figure 2 sends half of the light from each input waveguide 26, 28, 29. interferometer where the light from one output waveguide is 27 to the two output waveguides It can for example used at the end of a Mach Zehnder Mach Zehndern output. One is thus only interested in the light from one output waveguide.
    In this use of the light divider, the light divider shown in Figure 2 according to the present invention can be replaced with the light divider 17 shown in Figure 5, where two input waveguides 18, 19, but only one output waveguide 20 are present.
    In this way, the initially mentioned inner horn is thus avoided, whereby reflexes are minimized.
    According to a preferred embodiment, the light divider 1 is a 2X2 MMI (Multi Mod Interferrometer), see figure 4, where a continuous surface 14 is found angled to the direction of propagation of the light, where the said second embodiment 15, 16, which surface is present, the walk waveguide 29 would have existed.
    Figure 4 shows a 2X2 MMI. According to this embodiment, there is a capture waveguide 9 arranged to capture light passing out of the light divider at the place where a second output waveguide 29 would have been located. The capture waveguide 9 is located at a distance from the light divider 1 and in the same direction as the said second output waveguide 29 would have had.
    The inner horn is avoided. Most of the light that would have ended up in the said second output waveguide 29 is instead captured by the capture waveguide 9. The light propagates a small distance in the surrounding material but is captured then up. A capture waveguide 9 is especially suitable when the reflection is small at the end of the MMIn. The reflection is small, for example in a shallowly etched ridge waveguide or in a buried heterostructure waveguide, where the contrast in the effective index between the waveguide and the surrounding surface is small.
    In the same way, a 1x2 MMI 21, shown in Figure 1, can be changed so that an output waveguide 22 is replaced by a capture waveguide 11, see Figure 3. According to this embodiment, there is a surface 25 angled to the propagation direction of the light where it is mentioned. when the second output waveguide 22 would have existed. where two input waveguides 41, 42 are present. Figure 7 shows a 2X2MMI 40, which is present and where there is no output waveguide. two capture waveguides 43, 44 located near said angled surface 45. stand from the light divider 40 and in the same direction as said capture capture waveguides 43, 44 are placed on other output waveguides would have had. The arrows show the propagation direction of the light.
    With a 2X2 MMi and a 1X2 MMI, inner corners against which incident light can be reflected are thus avoided.
    In the case of MMIs, the invention can be applied to cases where the light from the input waveguide or input waveguides has more than 1 "image" on the output side. It is then characteristic that where one or more images are formed, one or more waveguides have been removed, so that some images have no output waveguide.
    According to a very preferred embodiment, the capture waveguide 43,44, emerging from the light divider, is pure 9; 11; which is arranged to capture light, which is placed at a distance from the light divider of 0.1 to 10 micrometers. According to an alternative embodiment of a 2X2 MMI 30 according to the invention, which is shown in Figure 6, there is a surface 31 arranged to constitute a side reflector at the place where a 2X2 MMI 30, the Surface has the first 28 exit guides would have existed. two input waveguides 32, 33 and an output guide 34. 31 are arranged to reflect light incident on the surface 31 in a direction substantially perpendicular to the propagation direction of the incident light so that the light leaves the MMIn on the opposite side of the surface 31 into a multi-mode guide 36, which is integrated in the light divider 30 or connected to the light divider 30.
    The multi-mode guide 32 is relatively wide and diverts the light to some type of lower reflective termination. In this way, inner corners and associated reflection are avoided. A side reflector 31 is particularly suitable when the reflection at the end of MMIn is e.g. where the contrast in large, in a deeply etched ridge waveguide, effective index between guide and surrounding surface is large.
    According to a preferred embodiment, the surface 31 is formed slightly outwardly convex, i.e. convex upwards in the figure.
    It is obvious that the initially mentioned problem is solved by means of the present invention.
    A number of embodiments have been described above. It is obvious that the person skilled in the art can vary the detailed design without the inventive idea of designing the light guide so that inner corners are missing.
    The present invention should therefore not be construed as limited to the above embodiments but may be varied within the scope of the appended claims. h: docworkkmsearchstextdoc, 2009-05-13 090075EN
    权利要求:
    Claims (8)
    [1]
    1. l. Optical light divider comprising or connected to (4; 6,7; l8, l9; 32,33; 4l, 42) (l; 2; l7; on the opposite side of the input waveguide or input (4; 6) , 7; l8, l9; 32,33; 41, 42) (8; 10; 20; 34) of a surface at least one input waveguide for characteristic 30,40), the waveguides light, of the light divider passing into at most an output waveguide in the propagation of the incoming light (14; 25; 31; 45) against the propagation direction of the light in that part of the light divider, ring direction, is angled opposite the input waveguide or waveguides and in that said surface is present where the light divider has a formation (image) from incoming light and the fact that inner corners are missing in the said part.
    [2]
    Optical light divider according to claim 1, characterized (1; 2), is connected to the input waveguide (4) (6,7; 18, 19; 32,33) 10; 20; 34) that a capture waveguide of, that part of the light divider which includes or or input waveguide- passes into only one output waveguide (8: in the propagation direction of the incident light of, (9; ll) passing out of the light divider at the point where a second output waveguide (22; 29) (9; ll) the divider and in the same direction as the said second output waveguide would have had, there is arranged to capture light, there would have been, which capture waveguide is placed at a distance from the light waveguide.
    [3]
    Light divider according to claim 1 or 2, characterized in that the light divider (1) is a 2X2 MMI (Multi Mod Interferometer) where a surface (14) is angled to the propagation direction of the light, wherein said second output waveguide (29 ) would have existed.
    [4]
    A light divider according to claim 1 or 3, characterized (40) connected to the input waveguide or input waveguides 42) is a 2X2 MMI, (45) comprising or is (41), provided that the part of the light divider area h: docworkkmsöksextdoc, 2009-05- 13 090075EN 10 15 20 25 30 from incom- (43,44) which passes out of lightde- there is where the light divider has an image (image) mande light and of, that two capture waveguides occur are arranged to capture light, the locator in the places where the output waveguides would have been, (43,44) from the light divider and in the same direction as the others mentioned which capture waveguides are placed at a distance the output waveguides would have had.
    [5]
    A light divider according to claim 1 or 2, that the light divider (2) is a 1X2 MMI (25) where said second output waveguide a v is at an angle to the light propagator (22) where a surface miter direction would have been. k e n n e - (9: ll), which passes out of the light divider is 4 or 5, that the capture waveguide
    [6]
    Light divider according to claims 2, 3, characterized in that it is arranged to capture light, placed at a distance from the light divider of 0.1 to 10 micrometers.
    [7]
    A light divider according to claim 1, is a ZX2 MM:, first output waveguide (31) reflecting towards the surface where the light divider (30) is characterized in that at the place where a (22) arranged to constitute a side reflector arranged to (31) perpendicular to the propagation of the incident light (36), the light divider or connected to the light divider. a v, there would have been a surface incident light in a direction west into a multimode waveguide integrated in
    [8]
    Light divider according to claim 7, characterized in that the surface 31 is designed slightly outwardly convex. h: docworkkmsearchstextdoc, 2009-05-13 090075EN
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4172631A|1975-01-07|1979-10-30|Izon Corporation|Parallel optical fiber and strip illuminating arrays|
    GB2222891B|1988-09-17|1992-01-08|Stc Plc|Diffraction grating|
    DE69400905T2|1993-08-04|1997-05-22|Philips Electronics Nv|MULTI-FASHION IMAGE COMPONENT AND RING LASER WITH A MULTI-FASHION IMAGE COMPONENT|
    JPH07174929A|1993-11-01|1995-07-14|Sumitomo Electric Ind Ltd|Light branching device and optical parts|
    WO1995012828A1|1993-11-04|1995-05-11|Besse Pierre Andre|Process for altering the intensity and phase ratios in multi-mode interference couplers|
    US5630004A|1994-09-09|1997-05-13|Deacon Research|Controllable beam director using poled structure|
    US6236781B1|1999-09-30|2001-05-22|Agere Systems Optoelectronics Guardian Corp.|Duplicated-port waveguide grating router having substantially flat passbands|
    US6289147B1|1999-11-01|2001-09-11|Bbv Design Bv|Passband flattening of a phasar|
    JP4208366B2|1999-12-03|2009-01-14|富士通株式会社|Optical coupler and optical multiplexer|
    US6385371B1|2000-04-03|2002-05-07|Cogent Light Technologies, Inc.|Optical system including coupling for transmitting light between a single fiber light guide and multiple single fiber light guides|
    US6512864B1|2000-06-08|2003-01-28|Lucent Technologies Inc.|Optical multiplexer/demultiplexer arrangement for WDM signals having in-band and out-of-band signal components|
    US6424760B1|2000-12-29|2002-07-23|Sumitomo Electric Industries, Ltd.|Optical multiplexer/demultiplexer|
    JP3679016B2|2001-02-27|2005-08-03|エヌティティエレクトロニクス株式会社|Optical multiplexing circuit and optical multiplexing device|
    JP2003014963A|2001-06-27|2003-01-15|Nec Corp|Semiconductor optical integrated element and its manufacturing method and module for optical communication|
    US6810167B2|2001-10-29|2004-10-26|Fujitsu Limited|Wavelength division demultiplexing apparatus|
    US6714704B2|2001-11-29|2004-03-30|Lightcross, Inc.|Optical component having selected bandwidth|
    GB0216319D0|2002-07-13|2002-08-21|Alcatel Optronics Uk Ltd|Improved optical splitter|
    US6892008B2|2003-02-14|2005-05-10|Optovia Corporation|Planar star couplers with reduced insertion loss|
    WO2005022223A1|2003-08-28|2005-03-10|Nec Corporation|Optical device of waveguide type and its production method|
    JP2005274962A|2004-03-24|2005-10-06|Fuji Xerox Co Ltd|Optical waveguide wiring board, method for manufacturing same, original board for manufacturing same, and photoelectric hybrid substrate|
    JP2004258677A|2004-04-26|2004-09-16|Sharp Corp|Optical circuit element and integrated optical circuit device using it|
    JP2006032315A|2004-06-14|2006-02-02|Seiko Epson Corp|Light-emitting device, electronic equipment, projection-type display device, line head, and image forming apparatus|
    JP2006017824A|2004-06-30|2006-01-19|Fuji Photo Film Co Ltd|Light guiding body|
    EP1840607B1|2005-01-20|2013-11-06|Fujitsu Ltd.|Optical waveguide device and semiconductor device|
    JP4499611B2|2005-05-19|2010-07-07|日本電信電話株式会社|Multimode interference optical waveguide|
    JP2006337748A|2005-06-02|2006-12-14|Fuji Xerox Co Ltd|Optical waveguide and its manufacturing method|US8889447B2|2012-06-21|2014-11-18|International Business Machines Corporation|Double layer interleaved p-n diode modulator|
    WO2015157911A1|2014-04-15|2015-10-22|华为技术有限公司|Optical waveguide group velocity delay measurement device and method|
    CN107407775A|2015-04-24|2017-11-28|华为技术有限公司|A kind of waveguiding structure and silicon base chip|
    US9885828B2|2015-06-04|2018-02-06|Finisar Sweden Ab|Optical waveguiding part|
    US10359569B2|2016-05-09|2019-07-23|Huawei Technologies Co., Ltd.|Optical waveguide termination having a doped, light-absorbing slab|
    WO2018198193A1|2017-04-25|2018-11-01|三菱電機株式会社|Semiconductor device and method for manufacturing semiconductor device|
    US10983272B2|2017-05-26|2021-04-20|Mitsubishi Electric Corporation|Multi-mode interference multiplexer/demultiplexer and optical element using the same|
    JP2019008275A|2017-06-27|2019-01-17|住友電気工業株式会社|Multimode interferometer, mach-zehnder modulator|
    WO2020075234A1|2018-10-10|2020-04-16|三菱電機株式会社|Multi-mode interferometric optical waveguide device and photonic integrated circuit|
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