EP1535093A1 - Carte de circuits munie de traces conducteurs electriques et de moyens de conversion electro-optique et/ou opto-electrique - Google Patents

Carte de circuits munie de traces conducteurs electriques et de moyens de conversion electro-optique et/ou opto-electrique

Info

Publication number
EP1535093A1
EP1535093A1 EP03794788A EP03794788A EP1535093A1 EP 1535093 A1 EP1535093 A1 EP 1535093A1 EP 03794788 A EP03794788 A EP 03794788A EP 03794788 A EP03794788 A EP 03794788A EP 1535093 A1 EP1535093 A1 EP 1535093A1
Authority
EP
European Patent Office
Prior art keywords
optical
circuit board
printed circuit
electrical
board according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP03794788A
Other languages
German (de)
English (en)
Inventor
Jörg RÖSCH
Frank Peter Schiefelbein
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1535093A1 publication Critical patent/EP1535093A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0274—Optical details, e.g. printed circuits comprising integral optical means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4214—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical element having redirecting reflective means, e.g. mirrors, prisms for deflecting the radiation from horizontal to down- or upward direction toward a device

Definitions

  • the invention relates to a printed circuit board according to the preamble of claim 1.
  • the performance of the processors can only be used • if the external connections enable the transmission and processing, such as switching, multiplexing and demultiplexing of these high frequencies.
  • optical components are increasingly being used for transmission.
  • the optical technology avoids electrical problems. So far, these optical components have been attached to printed circuit boards.
  • the optical components are connected using optical fibers.
  • the optical fibers of one or more circuit boards are through Splicing or optical connectors connected together. They often lead to other discrete components. These structures avoid electrical problems, but are relatively complex to construct and cost-intensive.
  • the object of the present invention is to demonstrate a simple connection technique for optical components.
  • optical circuits can also be integrated and the power supply to optical components or the control of optical components can be implemented by means of electrical circuits on a printed circuit board.
  • the optical conductor tracks or connections are designed as optical waveguides. This has the advantage of particularly low-loss and low-distortion connections.
  • the circuit board is designed as a multilayer board, i.e. it consists of several
  • a layer can contain electrical or optical connections. Mixed forms are also possible.
  • the layers of electrical and optical connections or conductor tracks do not have to be alternating. It can also be several layers of one type, which in turn lie over several layers of the other type.
  • the inner conductor tracks can be reached through orthogonal accesses with respect to the level of the conductor tracks. Likewise, the conductor tracks can be designed to be led out laterally.
  • the use of a multilayer circuit board has the advantage that complex electrical and optical circuits can be integrated on a circuit board.
  • the optical components or components are integrated in the circuit board.
  • integrated optics are possible. That For example, micro-electrical-mechanical systems, or MEMS for short, are integrated, which optionally emit an optical signal at one of two outputs. This allows the advantages of integrated optics to be combined with the advantages of electronics on the circuit board.
  • linear and nonlinear optical effects can advantageously be integrated on a circuit board.
  • Figure 1 is a schematic representation of a circuit board with an electrical and an optical level and an electro-optical component.
  • Figure 2 shows an embodiment with a multilayer board.
  • Figure 3 shows another embodiment with a multilayer board that carries optical signals of different wavelengths.
  • X Figure 4 shows a detail for an embodiment of an optical layer in a perspective cross-sectional view.
  • Figure 5 is a block diagram of an add / drop multiplexer.
  • FIG. 6 shows an internal structure of the add / drop multiplexer according to FIG. 5.
  • Figure 1 shows a circuit board LP.
  • This consists of a base layer 1, an optical layer 2, which has an optical conductor track 3, for example an optical waveguide, an electrical layer 4, which is electrically insulating and has electrically conductive conductor tracks 5.
  • An electro-optical component 6 is connected to the electrical conductor tracks and is arranged on a connection opening 7 to the optical layer 2.
  • the optical side of the electro-optical component 6 is optically effectively connected to the optical conductor track 3 by means of an optical coupling element 8, for example a mirror or a micro-electrical-mechanical system, abbreviated MEMS.
  • MEMS micro-electrical-mechanical system
  • FIG. 2 shows an analogous representation to Figure 1, with the difference that further layers are shown.
  • FIG. 2 shows two optical layers 2 and two electrical layers or levels 4 with conductor tracks (not shown), a connection opening 7 and an optical coupling element 8.
  • the arrow 9, which leads from the optical conductor track 3 to the optical coupling element 8, and the arrow 10, which leads outward from the optical coupling element 8, schematically shows the path of an optical signal that is coupled in or out.
  • FIG. 3 shows, analogously to FIG. 2, a circuit board with several layers, for example a multilayer board or multilayer circuit board.
  • the optical Layers transmit different optical signals, for example different wavelengths.
  • FIG. 4 shows a section of an embodiment of the optical layer 2. It consists of a first partial layer T1 with a first refractive index n1. A second sub-layer T2 with a second refractive index n2 is arranged above it. This has a light-conducting or light-wave-conducting cross-sectional profile, in the example this is an elevated rectangular channel. A further partial layer 3 with a third refractive index n3 is arranged on the partial layer 2.
  • the refractive index of the middle sub-layer T2 must be greater than that of the lower and upper sub-layers Tl and T3, i.e. the condition n2> nl and n2> n3 must be fulfilled.
  • deviating refractive index ratios are also conceivable.
  • the rectangular channel of the sub-layer 2 acts as an optical conductor.
  • FIG. 5 shows a block diagram of an add / drop multiplexer.
  • a wavelength multiplex signal WDM is fed to input E. This consists of several independent optical signals that are transported on different wavelengths.
  • the signal of one wavelength can be routed to the outside - the so-called drop side - and taken from the respective output Dl ... Dn.
  • a signal of an unused or outward channel of the wavelength division multiplex signal can be added. This is done on the Add page at the respective input AI ... An.
  • a correspondingly changed wavelength division multiplex signal WDM is output at output Z.
  • the wavelength division multiplex signal WDM is fed to a demultiplexer DEMUX. This divides the supplied signal into several partial signals according to the number of channels. A channel is shown in the illustration. This
  • Partial signal is fed to a first optical filter FI1, which forwards a filtered signal to an add / drop device ADE.
  • a first optical filter FI1 which forwards a filtered signal to an add / drop device ADE.
  • This can be implemented, for example, as a micro-electrical-mechanical system, or MEMS for short.
  • the signal coupled in or out can optionally be amplified by means of amplifiers VI and V2.
  • This arrangement is usually constructed discretely. It can be advantageously integrated by using the circuit board according to the invention.
  • the demultiplexers, filters, micro-electrical-mechanical systems, amplifiers and multiplexers can be integrated on a circuit board together with the control electronics or further processing electronics.
  • electro-optical, optical-electrical or optical means which comprise passive and active functions and are based on organic and / or inorganic materials, micro-electrical-mechanical systems, MEMS for short, optical filters such as gain flatness filters and tilt filters, optical switches, optical amplifiers, such as erbium or other rare earths, doped fiber amplifiers or semiconductor laser amplifiers, laser diodes, photodiodes, arrayed waveguide grating, AWGs for short, branches or taps, optical modulators, such as mach Zehnder modulators or electrical
  • Absorption modulators and other means of this type include.
  • electro-optical means such as laser diodes, refractive index-changing components, optical amplifiers, optical switches, and optical-electrical means, such as photodiodes
  • passive such as switching, damping, and active
  • active such as amplifying , non-linear effects, functions
  • polymer can be used instead of glass, silicon oxide or silicon dioxide for the optical conductor tracks.
  • Optical amplifiers such as erbium-doped fiber amplifiers, EDFA for short, erbium-doped waveguide amplifiers, EDWA for short, semiconductor laser amplifiers or semiconductor optical amplifiers, SOA for short, consist of several components such as monitor photodiodes, pump lasers, filters and fiber splices.
  • Optical amplifiers can advantageously be integrated by using the circuit board according to the invention.
  • the multilayer board comes with optical and electrical
  • Optical waveguides and suitable optical switches are introduced into the optical layers, which consist of thin glass or polymers and optionally have dopings, for example with erbium, which enable the optical signal to be coupled in and out.
  • Optical signals that are fed in or out can be fed to a fiber connector or a fiber connector strip, which is arranged on, in, on or near the printed circuit board.
  • the electrical and optical contacts or connecting elements of the printed circuit board can be combined or designed individually. Three-dimensional optical structures can also be integrated into the circuit board.
  • the optical signal can be passed on from one layer to another layer and can supply various means, components or components.
  • optical signals can be bundled or separated in integrated multiplexers, demultiplexers, splitters, tap couplers.
  • the optical layer can by
  • Doping optical amplifiers can be realized that compensate for losses or bring about an adaptation of the light signal.
  • the electrical layers take over the power supply, monitoring and control of the electrical, electronic, electro-optical, optical-electrical and optical components.
  • circuit boards according to the invention can not only be used in data and telecommunications technology, but also, for example, in automotive technology, medical technology, power plant technology, etc.
  • the advantages mentioned and the advantages resulting from the optical integration include, in addition to the reduction in the overall dimensions and the improved repeatability in production, the following.
  • An integrated solution in the circuit carrier or the printed circuit board is possible instead of individual components.
  • An integrated arrangement generally requires smaller electrical field dimensions, ie less energy, which in turn means fewer disturbances, such as due to electromagnetic incompatibility, or EMC for short.
  • EMC electromagnetic incompatibility
  • a circuit board can contain a complete optical add / drop multiplexer.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

L'invention concerne une carte de circuits munie de tracés conducteurs électriques, qui comporte en outre des tracés conducteurs optiques. Il est prévu en outre des moyens électro-optiques ou opto-électriques sur ou dans la carte de circuits.
EP03794788A 2002-09-05 2003-08-13 Carte de circuits munie de traces conducteurs electriques et de moyens de conversion electro-optique et/ou opto-electrique Ceased EP1535093A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10241203 2002-09-05
DE10241203A DE10241203A1 (de) 2002-09-05 2002-09-05 Leiterplatte mit elektrischen Leiterbahnen und Mitteln zur elektro-optischen und/oder optisch-elektrischen Wandlung
PCT/DE2003/002729 WO2004025341A1 (fr) 2002-09-05 2003-08-13 Carte de circuits munie de traces conducteurs electriques et de moyens de conversion electro-optique et/ou opto-electrique

Publications (1)

Publication Number Publication Date
EP1535093A1 true EP1535093A1 (fr) 2005-06-01

Family

ID=31895680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03794788A Ceased EP1535093A1 (fr) 2002-09-05 2003-08-13 Carte de circuits munie de traces conducteurs electriques et de moyens de conversion electro-optique et/ou opto-electrique

Country Status (5)

Country Link
US (1) US20060104562A1 (fr)
EP (1) EP1535093A1 (fr)
CN (1) CN1678930A (fr)
DE (1) DE10241203A1 (fr)
WO (1) WO2004025341A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004354532A (ja) * 2003-05-27 2004-12-16 Seiko Epson Corp 光モジュール及びその製造方法、光通信装置、電子機器
US8346087B2 (en) * 2007-09-28 2013-01-01 Oracle America, Inc. Wavelength-division multiplexing for use in multi-chip systems
KR101246137B1 (ko) * 2008-12-19 2013-03-25 한국전자통신연구원 발광 소자 및 광결합 모듈
US7949211B1 (en) 2010-02-26 2011-05-24 Corning Incorporated Modular active board subassemblies and printed wiring boards comprising the same
WO2012069929A1 (fr) * 2010-11-25 2012-05-31 Fci Carte de circuits imprimés optique
CN104730653B (zh) * 2013-12-23 2016-08-31 华为技术有限公司 光互连系统和方法

Citations (1)

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GB2366105A (en) * 2000-03-15 2002-02-27 Nortel Networks Ltd MEMS based integrated photonic switch for WDM systems

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DE4234485C1 (de) * 1992-10-13 1993-09-30 Ant Nachrichtentech Vorrichtung mit zwei optischen Eingängen und vier optischen Ausgängen und Polarisationsdiversity-Empfänger für den optischen Überlagerungsempfang
JP3439533B2 (ja) * 1994-06-24 2003-08-25 富士通株式会社 選択的保護機能を有するｓｄｈ２−ファイバリング光多重装置
US5521992A (en) * 1994-08-01 1996-05-28 Motorola, Inc. Molded optical interconnect
US5761350A (en) * 1997-01-22 1998-06-02 Koh; Seungug Method and apparatus for providing a seamless electrical/optical multi-layer micro-opto-electro-mechanical system assembly
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US6706546B2 (en) * 1998-10-09 2004-03-16 Fujitsu Limited Optical reflective structures and method for making
JP3728147B2 (ja) * 1999-07-16 2005-12-21 キヤノン株式会社 光電気混載配線基板
US6363183B1 (en) * 2000-01-04 2002-03-26 Seungug Koh Reconfigurable and scalable intergrated optic waveguide add/drop multiplexing element using micro-opto-electro-mechanical systems and methods of fabricating thereof
EP1116973A1 (fr) * 2000-01-11 2001-07-18 Corning Incorporated Dispositifs à guides d'onde optique intégrés athermalisés
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See also references of WO2004025341A1 *

Also Published As

Publication number Publication date
DE10241203A1 (de) 2004-03-25
CN1678930A (zh) 2005-10-05
US20060104562A1 (en) 2006-05-18
WO2004025341A1 (fr) 2004-03-25

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