JP2018520375A - 偏波無依存反射変調器 - Google Patents
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- 230000010287 polarization Effects 0.000 title claims abstract description 188
- 230000003287 optical effect Effects 0.000 claims abstract description 217
- 238000000034 method Methods 0.000 claims abstract description 19
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
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- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 3
- LSGOVYNHVSXFFJ-UHFFFAOYSA-N vanadate(3-) Chemical compound [O-][V]([O-])([O-])=O LSGOVYNHVSXFFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910009372 YVO4 Inorganic materials 0.000 claims 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/06—Polarisation multiplex systems
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference
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- 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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
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- 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
- H04B10/27—Arrangements for networking
- H04B10/272—Star-type networks or tree-type networks
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- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference
- G02F1/211—Sagnac type
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2203/00—Function characteristic
- G02F2203/06—Polarisation independent
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
- H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
- H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
- H04J2014/0253—Allocation of downstream wavelengths for upstream transmission
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
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Abstract
Description
本願は、参照によりその全体が再製されるように本願明細書に組み込まれる米国仮特許出願番号第62/162161号、2015年5月15日出願、Yangjing Wen他による、名称「偏波無依存反射変調器(Polarization Independent Reflective Modulator)」の利益を請求する、米国非仮特許出願番号第15/136396号、2016年4月22日出願、名称「偏波無依存反射変調器(Polarization independent reflective modulator)」の利益を請求する。
Claims (20)
- 光搬送波を受信するよう構成される光入力と、
前記光入力、第1光経路、及び第2光経路に光結合される偏波ビームスプリッタであって、前記偏波ビームスプリッタは、
前記第1光経路に沿って前記光搬送波の第1偏波成分を転送し、
前記第2光経路に沿って前記光搬送波の第2偏波成分を転送し、前記第1偏波成分は、前記偏波ビームスプリッタを出るとき、前記第2偏波成分の第2偏波と直交する第1偏波を有する、
偏波ビームスプリッタと、
前記第1光経路に結合される近端と前記第2光経路に結合される遠端とを備える光変調器であって、前記光変調器は、前記光搬送波の前記第1偏波成分及び前記光搬送波の前記第2偏波成分を変調するよう構成される、光変調器と、
を含む装置。 - 前記第1偏波成分及び前記第2偏波成分を変調することは、
前記近端を介して前記第1光経路から前記第1偏波成分を受信することと、
前記遠端を介して前記第2光経路から前記第2偏波成分を受信することと、
前記第1偏波成分を変調して第1変調成分を生成することと、
前記第2偏波成分を変調して第2変調成分を生成することと、
前記遠端を介して前記第2光経路へ前記第1変調成分を出力することと、
前記近端を介して前記第1光経路へ前記第2変調成分を出力することと、
を含む、請求項1に記載の装置。 - 前記偏波ビームスプリッタは、
前記第1変調成分及び前記第2変調成分を結合変調信号に結合し、
前記光搬送波の方向と反対方向に、前記光入力を介して前記結合変調信号を転送する、
よう更に構成される、請求項2に記載の装置。 - 前記第1偏波成分及び前記第2偏波成分は、共通電気信号により実質的に同時に変調される、請求項3に記載の装置。
- 前記第2光経路に沿って位置付けられ前記第2偏波成分の前記第2偏波を前記第1偏波成分の前記第1偏波と平行になるよう回転するよう構成される偏波回転子、を更に含む請求項1乃至4のいずれか一項に記載の装置。
- 前記偏波回転子は、ファラデー回転子又はモード変換器を含む、請求項5に記載の装置。
- 前記第1光経路及び前記第2光経路は、シリコン導波路を含み、前記偏波ビームスプリッタ及び前記偏波回転子は、シリコンに基づく偏波スプリッタ回転子(polarization splitter rotator、PSR)に含まれる、請求項5に記載の装置。
- 前記光変調器は、シリコン導波路に基づく変調器、単一集中定数型変調器、マッハツェンダー変調器、同相直交(Inphase Quadrature、IQ)変調器、マイクロリング共振器に基づく変調器、電界吸収型変調器、又はそれらの組合せを含む、請求項1乃至7のいずれか一項に記載の装置。
- 前記偏波ビームスプリッタは、イットリウムオルトバナジウム酸(Yttrium Orthovanadate、YVO4)複屈折結晶を含み、前記偏波回転子はガラスウェッジ及び半波長板を含む、請求項5に記載の装置。
- 前記偏波ビームスプリッタ及び前記偏波回転子は、2次元格子カプラに含まれる、請求項5に記載の装置。
- リモート装置から光搬送波を受信するよう構成される光ポートと、
前記光ポートに結合された偏波無依存反射変調器(polarization independent reflective modulator、PIRM)であって、前記PIRMは、
前記光ポートから前記光搬送波を受信し、
前記光搬送波を第1偏波成分及び第2偏波成分に分け、前記第1偏波成分の第1偏波が前記第2偏波成分の第2偏波と直交するようにし、
前記第1偏波成分及び前記第2偏波成分上に電気信号を変調し、
前記の変調した第1偏波成分及び前記の変調した第2偏波成分を結合して、結合変調信号を生成する、
よう構成される、PRIMと、
を含む装置。 - 前記PIRMは、前記第1偏波と平行になるよう前記第2偏波を回転し、及び前記第1偏波成分及び前記第2偏波成分を実質的に同時に変調するよう更に構成される、請求項11に記載の装置。
- 前記装置は、複数のPIRMを含み、前記装置は、前記光ポート及び前記PIRMに結合された波長分割マルチプレクサを更に含み、前記光搬送波は複数の波長を含み、前記波長分割マルチプレクサは、波長分割多重化をサポートするために、各波長を対応するPIRMに分配するよう構成される、請求項11乃至12のいずれか一項に記載の装置。
- 前記装置は、データセンタ内に位置付けられるサーバであり、前記リモート装置はエンドオブロー(end−of−row、EOR)スイッチであり、前記PIRMは、前記結合変調信号を前記光ポートを介して前記EORスイッチへ送信するよう更に構成される、請求項11乃至13のいずれか一項に記載の装置。
- 前記装置は、ダウンストリーム光ポートを更に含み、前記PIRMは、前記結合変調信号を前記ダウンストリーム光ポートを介してダウンストリーム装置へ送信するよう更に構成される、請求項11乃至14のいずれか一項に記載の装置。
- 前記装置はリモート無線ユニット(remote radio unit、RRU)であり、前記リモート装置はベースバンドユニット(baseband unit、BBU)であり、前記装置は無線通信機を含み、前記電気信号は、変調及び前記光ポートを介した前記BBUへの再送信のために、前記無線通信機を介してモバイルネットワークから受信される、請求項11乃至15のいずれか一項に記載の装置。
- リモート装置から光入力ポートを介して光搬送波を受信するステップと、
前記光搬送波を第1偏波成分及び第2偏波成分に分けるステップであって、前記第1偏波成分の第1偏波が前記第2偏波成分の第2偏波と直交するようにする、ステップと、
前記第1偏波成分及び前記第2偏波成分上に電気信号を変調するステップと、
前記の変調した第1偏波成分及び前記の変調した第2偏波成分を結合して、結合変調信号を生成するステップと、
を含む方法。 - 前記光搬送波により共通光ファイバに渡り前記光入力ポートを介して前記結合変調信号を送信するステップ、を更に含む請求項17に記載の方法。
- 変調の前に、前記第1偏波成分の前記第1偏波と平行になるよう、前記第2偏波成分の前記第2偏波を回転するステップ、を更に含む請求項18に記載の方法。
- 前記電気信号は、単一の変調器を用いることにより、前記第1偏波成分及び前記第2偏波成分上に実質的に同時に変調され、前記第1偏波成分及び前記第2偏波成分は、前記単一の変調器を反対方向に横切る、請求項19に記載の方法。
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US201562162161P | 2015-05-15 | 2015-05-15 | |
US62/162,161 | 2015-05-15 | ||
US15/136,396 US20160337041A1 (en) | 2015-05-15 | 2016-04-22 | Polarization Independent Reflective Modulator |
US15/136,396 | 2016-04-22 | ||
PCT/CN2016/080513 WO2016184301A1 (en) | 2015-05-15 | 2016-04-28 | Polarization independent reflective modulator |
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EP (1) | EP3289407B1 (ja) |
JP (1) | JP6527600B2 (ja) |
CN (1) | CN107615139B (ja) |
WO (1) | WO2016184301A1 (ja) |
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CN107615139B (zh) | 2020-09-18 |
JP6527600B2 (ja) | 2019-06-05 |
CN107615139A (zh) | 2018-01-19 |
WO2016184301A1 (en) | 2016-11-24 |
EP3289407B1 (en) | 2019-06-26 |
EP3289407A1 (en) | 2018-03-07 |
EP3289407A4 (en) | 2018-05-02 |
US20160337041A1 (en) | 2016-11-17 |
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