JP7101569B2 - 光受信装置の組立方法 - Google Patents
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/614—Coherent receivers comprising one or more polarization beam splitters, e.g. polarization multiplexed [PolMux] X-PSK coherent receivers, polarization diversity heterodyne coherent receivers
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with infrared radiation
-
- 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
- G02B6/4213—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being polarisation selective optical elements
-
- 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
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/61—Coherent receivers
- H04B10/615—Arrangements affecting the optical part of the receiver
-
- 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
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2808—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs
- G02B6/2813—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using a mixing element which evenly distributes an input signal over a number of outputs based on multimode interference effect, i.e. self-imaging
-
- 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
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- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4295—Coupling light guides with opto-electronic elements coupling with semiconductor devices activated by light through the light guide, e.g. thyristors, phototransistors
Description
最初に、本発明の実施形態の内容を列記して説明する。一実施形態に係る光受信装置の組立方法において、光受信装置は、互いに直交する2つの偏光成分を含む信号光を入力する信号光入力ポートと、信号光を一方の偏光成分と他方の偏光成分とに分岐する偏光ビームスプリッタと、一方の偏光成分から電気的な第1の受信信号を生成し、他方の偏光成分から電気的な第2の受信信号を生成する信号受信部と、信号光入力ポートと信号受信部との間の光路上に配置される少なくとも1つの光学部品と、を備える。偏光ビームスプリッタは、信号光の波長域である第1の波長域、及び第1の波長域外の第2の波長域を設計波長域に含む。当該組立方法は、信号光入力ポートと信号受信部の間の光路上に偏光ビームスプリッタを配置する工程と、偏光ビームスプリッタと信号受信部の間の光路上に少なくとも1つの光学部品を配置する工程と、信号光の波長帯域とは別の第2の波長域に含まれる試験光を信号光入力ポートから偏光ビームスプリッタに入力する工程と、信号受信部に入力される試験光の光強度に基づいて、少なくとも1つの光学部品の光軸調整を行う工程と、を含む。
本発明の実施形態に係る光受信装置の組立方法の具体例を、以下に図面を参照しつつ説明する。なお、本発明はこれらの例示に限定されるものではなく、特許請求の範囲によって示され、特許請求の範囲と均等の意味及び範囲内でのすべての変更が含まれることが意図される。以下の説明では、図面の説明において同一の要素には同一の符号を付し、重複する説明を省略する。
Claims (6)
- 光受信装置の組立方法であって、
前記光受信装置は、
互いに直交する2つの偏光成分を含む信号光を入力する信号光入力ポートと、
前記信号光を一方の前記偏光成分と他方の前記偏光成分とに分岐する偏光ビームスプリッタと、
前記一方の偏光成分から電気的な第1の受信信号を生成し、前記他方の偏光成分から電気的な第2の受信信号を生成する信号受信部と、
前記信号光入力ポートと前記信号受信部との間の光路上に配置される少なくとも1つの光学部品と、
を備え、
前記偏光ビームスプリッタは、前記信号光の波長域である第1の波長域、及び前記第1の波長域外の第2の波長域を設計波長域に含み、
前記組立方法は、
前記第2の波長域が含まれる試験光を入力する模擬ポートと前記信号受信部の間の前記光路上に前記偏光ビームスプリッタを配置する工程と、
前記偏光ビームスプリッタと前記信号受信部の間の前記光路上に前記少なくとも1つの光学部品を配置する工程と、
前記試験光を前記模擬ポートから前記偏光ビームスプリッタに入力する工程と、
前記信号受信部に入力される前記試験光の光強度に基づいて、前記少なくとも1つの光学部品の光軸調整を行う工程と、
前記模擬ポートを前記信号光入力ポートに置き換えて前記信号光入力ポートの光軸調整及び固定を行う工程と、
を含む、光受信装置の組立方法。 - 前記第1の波長域の下限が1565nmであり、
前記第2の波長域は1565nmよりも小さい波長域を含む、請求項1に記載の光受信装置の組立方法。 - 前記第1の波長域の上限が1615nmである、請求項2に記載の光受信装置の組立方法。
- 前記試験光の波長が1550nm~1565nmの範囲内である、請求項2または3に記載の光受信装置の組立方法。
- 前記少なくとも1つの光学部品には、前記信号受信部に前記信号光を集光するためのレンズが含まれる、請求項1~4のいずれか1項に記載の光受信装置の組立方法。
- 前記少なくとも1つの光学部品には、前記信号光を減衰する可変減衰器が含まれる、請求項1~5のいずれか1項に記載の光受信装置の組立方法。
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JP2018162444A JP7101569B2 (ja) | 2018-08-31 | 2018-08-31 | 光受信装置の組立方法 |
CN201910804356.3A CN110875782B (zh) | 2018-08-31 | 2019-08-28 | 相干接收器的组装方法 |
US16/557,270 US11454768B2 (en) | 2018-08-31 | 2019-08-30 | Assembly method for coherent receiver |
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CN115225162B (zh) * | 2022-08-29 | 2023-01-24 | 北京中科国光量子科技有限公司 | 一种基于往返式延迟干涉仪的集成自相干接收光芯片 |
CN115134004B (zh) * | 2022-08-29 | 2022-11-18 | 北京中科国光量子科技有限公司 | 一种基于双向复用延迟干涉仪的集成自相干接收光芯片 |
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JP2007164179A (ja) | 2005-12-09 | 2007-06-28 | Enplas Corp | 光学素子 |
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