JP6367291B2 - 温度補償型アレイ導波路回折格子アセンブリ - Google Patents
温度補償型アレイ導波路回折格子アセンブリ Download PDFInfo
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- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12014—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the wavefront splitting or combining section, e.g. grooves or optical elements in a slab waveguide
-
- 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
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12026—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by means for reducing the temperature dependence
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
- G02B6/12021—Comprising cascaded AWG devices; AWG multipass configuration; Plural AWG devices integrated on a single chip
-
- 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
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
- G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
- G02B6/12033—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by means for configuring the device, e.g. moveable element for wavelength tuning
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optical Integrated Circuits (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Couplings Of Light Guides (AREA)
Description
Claims (21)
- 合成信号導波路と、
分散信号導波路の集合と、
第一のスラブ導波路と、
前記第一のスラブ導波路に光学的に接続された第一のミラーと、
前記第一のミラーを支持するミラーアセンブリと、
導波路アレイと、
第二のスラブ導波路と、
を含むプレーナ光波回路において、
前記導波路アレイが、前記第一のスラブ導波路と前記第二のスラブ導波路を光学的に接続して、アレイ導波路回折格子を提供し、
前記合成信号導波路または前記分散信号導波路の集合が、アクセスエッジにおいて前記第一のスラブ導波路に光学的に接続され、前記合成信号導波路または前記分散信号導波路の集合のうちの他方が、前記第二のスラブ導波路に光学的に接続され、前記アクセスエッジから前記第一のスラブ導波路を通る光路が、前記第一のミラーから、前記導波路アレイと、前記合成信号導波路または前記分散信号導波路の集合の適当な素子を接続するアレイエッジへの光反射を提供することによって折り返され、
前記第一のミラーで反射させる設計の構成では、反射角度が約80度以下であり、前記アクセスエッジから前記第一のミラーまでの光路の距離と前記導波路アレイから前記第一のミラーまでの光路の距離の比が約0.5:1〜約2:1であり、前記ミラーアセンブリがアクチュエータを含み、これは、温度変化に応答して前記第一のミラーを旋回させることによって前記角度を変化させ、選択された温度範囲において、当該プレーナ光波回路を通る光の伝送の有効な温度補償を行い、
前記第二のスラブ導波路が第二の可動式ミラーを含み、前記第一のミラーと前記第二のミラーの両方の温度に応答する運動が合同で、前記回路を通る光の、有効に温度補償された伝送を提供する、
プレーナ光波回路。 - 前記第一のミラーが前記ミラーアセンブリの中に配置された旋回軸の周囲で旋回する、請求項1に記載のプレーナ光波回路。
- 前記ミラーアセンブリが前記第一のミラーに固定されたマウントと、前記マウントに固定され、第一の熱膨張率を有する第一のアクチュエータと、前記マウントに固定され、第二の熱膨張率を有する第二のアクチュエータと、を含み、温度変化に応答して前記第一と第二のアクチュエータの長さの差動的変化が前記マウントを移動させ、前記角度を変化させる、請求項1または2に記載のプレーナ光波回路。
- 前記アレイ導波路回折格子がベース上に搭載され、前記ミラーアセンブリが前記ベース上に搭載され、前記アクチュエータが前記ベースに取り付けられて、前記アクチュエータの長さの変化が前記ベースまたはその一部分を移動させ、前記ミラーアセンブリを旋回させることによって、有効に温度補償された光の伝送を提供する、請求項1または2に記載のプレーナ光波回路。
- 前記ミラーアセンブリが、
基準値より上の第一の温度範囲について、第一の熱膨張率にしたがって膨張することによって前記第一のミラーまたはその他の反射面を旋回させ、前記アレイ導波路回折格子を通る光の、有効に温度補償された伝送を提供する第一のアクチュエータと、
基準値より下の第二の温度範囲について、第二の熱膨張率にしたがって収縮することによって前記第一のミラーまたはその他の反射面を旋回させ、前記アレイ導波路回折格子を通る光の、有効に温度補償された伝送を提供する第二のアクチュエータと、
を含む、請求項1または2に記載のプレーナ光波回路。 - 前記アレイ導波路回折格子がベース上に搭載され、前記ミラーアセンブリが前記ベース上に搭載され、前記第一のアクチュエータと前記第二のアクチュエータが前記ベース上に搭載される、請求項5に記載のプレーナ光波回路。
- 前記導波路が、光学ガラスを含む単独モノリシック部材の中にあり、1つまたは複数の前記ミラーアセンブリが接続ストラットによって前記モノリシック部材に固定される、請求項1〜6のいずれか1項に記載のプレーナ光波回路。
- 前記反射角度が約3度〜約70度の範囲内にある、請求項1〜7のいずれか1項に記載のプレーナ光波回路。
- 前記アクセスエッジから前記ミラーまでの光路の距離と、前記導波路アレイから前記第一のミラーまでの光路の距離の比が約0.75:1〜約1.5:1の範囲内である、請求項1〜8のいずれか1項に記載のプレーナ光波回路。
- 前記合成信号導波路が前記アクセスエッジにおいて前記第一のスラブ導波路に光学的に接続される、請求項1〜9のいずれか1項に記載のプレーナ光波回路。
- 前記分散信号導波路が前記アクセスエッジにおいて前記第一のスラブ導波路に光学的に接続される、請求項1〜10のいずれか1項に記載のプレーナ光波回路。
- フットプリントが約5000mm2〜約500mm2の範囲内である筐体をさらに含み、前記プレーナ光波回路が、約1250nm〜約1650nmの波長範囲で動作し、前記筐体が光コネクタを露出させて、合成光信号と分散光信号に関する光ファイバとの直接または間接の光学的な接続を提供する、請求項1〜11のいずれか1項に記載のプレーナ光波回路。
- 前記合成信号導波路と前記分散信号導波路が共通のエッジに接続する、請求項12に記載のプレーナ光波回路。
- 前記アクチュエータが、アルミニウム、真鍮、青銅、クロム、銅、金、鉄、マグネシウム、ニッケル、パラジウム、プラチナ、銀、ステンレススチール、錫、チタン、タングステン、亜鉛、ジルコニウム、Hastelloy(登録商標)、Kovar(登録商標)、Invar、Monel(登録商標)、Inconelのうちの1つまたは複数を含む、請求項1〜13のいずれか1項に記載のプレーナ光波回路。
- 選択された温度範囲について有効に温度補償された光回路を調整する方法であって、
請求項1〜14のいずれか1項に記載のプレーナ光波回路と、前記プレーナ光波回路のための箱体を提供するステップと、
前記アクチュエータを基準温度で調整し、前記アレイ導波路回折格子を通る中心バースト波長を整列させるステップと、
前記アクチュエータの調整後に前記箱体を密閉して、前記温度補償された光回路を格納するステップと、
を含む方法。 - 合成信号導波路と、
分散信号導波路の集合と、
第一のアクセスエッジと第一のアレイエッジを含む第一スラブ導波路と、
前記第一のスラブ導波路に光学的に接続される第一のミラーと、
第二のアクセスエッジと第二のアレイエッジを含む第二のスラブ導波路と、
前記第二のスラブ導波路に光学的に接続される第二のミラーと、
前記第一のスラブ導波路を前記第二の導波路に、それぞれのアレイエッジを通じて光学的に接続する導波路アレイと、
を含むプレーナ光波回路において、
各スラブ導波路が、それぞれの前記アクセスエッジとそれぞれの前記アレイエッジの間の折り返し光路を有し、前記ミラーで約80度以下の角度で反射させ、前記アクセスエッジから前記ミラーまでの距離と前記アレイエッジから前記ミラーまでの距離の比が約0.5:1〜約2:1であり、
前記第一のミラーを支持し、温度変化に応答して前記第一のミラーを旋回させるアクチュエータを含む第一のミラーアセンブリと、前記第二のミラーを支持し、温度変化に応答して前記第二のミラーを旋回させるアクチュエータを含む第二のミラーアセンブリと、をさらに含み、前記第一のミラーアセンブリと第二のミラーアセンブリが協働して、選択された温度範囲について、前記光路を補正し、当該プレーナ光波回路を通る光の、有効に温度補償された伝送を提供する、
プレーナ光波回路。 - 前記合成信号導波路と前記分散信号導波路が共通のエッジに接続する、請求項16に記載のプレーナ光波回路。
- それぞれの前記アクセスエッジとアレイエッジが前記スラブ導波路の共通の平坦エッジの部分である、請求項16または17に記載のプレーナ光波回路。
- 請求項16〜18のいずれか1項に記載のプレーナ光波回路と、前記プレーナ光波回路と光学的に接続される筐体と、を含む光デバイス。
- 前記プレーナ光波回路と接続し、光ファイバを個々の前記合成信号導波路と前記分散信号導波路に切断可能に選択的に光学的に連結する光コネクタをさらに含む、請求項19に記載の光デバイス。
- 光ファイバを前記合成信号導波路または分散信号導波路と非可動的に光学的に接続する非可動的光コネクタをさらに含み、前記光ファイバが開口部から前記筐体を通過する、請求項19に記載の光デバイス。
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