JP7780111B2 - 監視装置および監視方法 - Google Patents

監視装置および監視方法

Info

Publication number
JP7780111B2
JP7780111B2 JP2024507221A JP2024507221A JP7780111B2 JP 7780111 B2 JP7780111 B2 JP 7780111B2 JP 2024507221 A JP2024507221 A JP 2024507221A JP 2024507221 A JP2024507221 A JP 2024507221A JP 7780111 B2 JP7780111 B2 JP 7780111B2
Authority
JP
Japan
Prior art keywords
light
monitoring device
monitoring
unit
signal
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.)
Active
Application number
JP2024507221A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2023175683A1 (https=
Inventor
學 吉野
一貴 原
慎 金子
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.)
NTT Inc
NTT Inc USA
Original Assignee
Nippon Telegraph and Telephone Corp
NTT Inc USA
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 Nippon Telegraph and Telephone Corp, NTT Inc USA filed Critical Nippon Telegraph and Telephone Corp
Publication of JPWO2023175683A1 publication Critical patent/JPWO2023175683A1/ja
Application granted granted Critical
Publication of JP7780111B2 publication Critical patent/JP7780111B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H04B10/073—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an out-of-service signal
    • H04B10/0731—Testing or characterisation of optical devices, e.g. amplifiers
    • 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
    • H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)
JP2024507221A 2022-03-14 2022-03-14 監視装置および監視方法 Active JP7780111B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2022/011383 WO2023175683A1 (ja) 2022-03-14 2022-03-14 監視装置および監視方法

Publications (2)

Publication Number Publication Date
JPWO2023175683A1 JPWO2023175683A1 (https=) 2023-09-21
JP7780111B2 true JP7780111B2 (ja) 2025-12-04

Family

ID=88022475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024507221A Active JP7780111B2 (ja) 2022-03-14 2022-03-14 監視装置および監視方法

Country Status (3)

Country Link
US (1) US20250192883A1 (https=)
JP (1) JP7780111B2 (https=)
WO (1) WO2023175683A1 (https=)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003158531A (ja) 2001-11-22 2003-05-30 Kddi Corp ノード判定方法、通信システム及びノード計測装置
JP2006074098A (ja) 2004-08-31 2006-03-16 Hitachi Communication Technologies Ltd 波長多重光送信機
JP2009296322A (ja) 2008-06-05 2009-12-17 Hitachi Communication Technologies Ltd 光分岐装置および受動光網システム
JP2010068362A (ja) 2008-09-12 2010-03-25 Hitachi Ltd 受動光網システムおよびその障害特定方法
JP2011066608A (ja) 2009-09-16 2011-03-31 Nec Corp 局内装置、加入者装置、光通信システム、故障装置特定方法、および装置のプログラム
JP2012029176A (ja) 2010-07-26 2012-02-09 Kddi Corp 障害ｏｎｕ特定装置、障害ｏｎｕ特定方法及びｐｏｎシステム
JP2014171079A (ja) 2013-03-04 2014-09-18 Nec Access Technica Ltd 光通信システムとその制御方法、および、光分配器
JP2016539575A (ja) 2013-11-21 2016-12-15 アルカテル−ルーセント 受動光ネットワークにおける長期発光障害ｏｎｕを識別する方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10262000A (ja) * 1997-03-19 1998-09-29 Fujitsu Ltd パッシブオプチカルネットワークにおける障害復旧方法及び装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003158531A (ja) 2001-11-22 2003-05-30 Kddi Corp ノード判定方法、通信システム及びノード計測装置
JP2006074098A (ja) 2004-08-31 2006-03-16 Hitachi Communication Technologies Ltd 波長多重光送信機
JP2009296322A (ja) 2008-06-05 2009-12-17 Hitachi Communication Technologies Ltd 光分岐装置および受動光網システム
JP2010068362A (ja) 2008-09-12 2010-03-25 Hitachi Ltd 受動光網システムおよびその障害特定方法
JP2011066608A (ja) 2009-09-16 2011-03-31 Nec Corp 局内装置、加入者装置、光通信システム、故障装置特定方法、および装置のプログラム
JP2012029176A (ja) 2010-07-26 2012-02-09 Kddi Corp 障害ｏｎｕ特定装置、障害ｏｎｕ特定方法及びｐｏｎシステム
JP2014171079A (ja) 2013-03-04 2014-09-18 Nec Access Technica Ltd 光通信システムとその制御方法、および、光分配器
JP2016539575A (ja) 2013-11-21 2016-12-15 アルカテル−ルーセント 受動光ネットワークにおける長期発光障害ｏｎｕを識別する方法

Also Published As

Publication number Publication date
US20250192883A1 (en) 2025-06-12
WO2023175683A1 (ja) 2023-09-21
JPWO2023175683A1 (https=) 2023-09-21

Similar Documents

Publication Publication Date Title
US10181696B2 (en) Photonic integrated circuit
Kraemer et al. Multi-band photonic integrated wavelength selective switch
US6559984B1 (en) Apparatus for monitoring optical path based on the identification of optical cross-connect input ports
Giles et al. The wavelength add/drop multiplexer for lightwave communication networks
EP1043859B1 (en) Optical add/drop multiplexer node device
US8494360B2 (en) In-service optical network testing
US9647789B2 (en) Optical transmission device, optical transmission system, and test method for alarm function
JP2001188209A (ja) 光学システム
KR20230027280A (ko) 스플리터, 광학 분배 네트워크, 및 광학 필터 구조에 대응하는 파장을 결정하기 위한 방법
WO2020244302A1 (zh) 光源切换方法和装置
WO2020135849A1 (zh) 一种光交换装置、系统及功率计算方法
US20030002046A1 (en) Compound asymmetric interferometric wavelength converter
JP7780111B2 (ja) 監視装置および監視方法
US7831146B2 (en) Time and wavelength-shifted dynamic bidirectional system
WO2021179978A1 (zh) 光模块、数据中心系统以及数据传输方法
MacHale et al. 10Gb/s bidirectional transmission in a 116km reach hybrid DWDM-TDM PON
Yeh et al. Fiber-fault protection WDM-PON using new apparatus in optical networking unit
JP7517421B2 (ja) 光ノード装置、光トランスポートネットワークシステム、光パストレース方法及びプログラム
US20020181081A1 (en) Dynamically optimized photonic waveshifting multiplexer apparatus and method
Zhang et al. Low-loss and polarization-insensitive photonic integrated circuit based on micron-scale SOI platform for high density TDM PONs
US20250184028A1 (en) Separation system
CN106199829A (zh) 一种具有信道监控功能的阵列波导光栅
EP4589349A1 (en) Optical integrated circuit and optical receiver
Mechin et al. Influence of Bragg gratings phase mismatch in a Mach-Zehnder-based add-drop multiplexer
Talli et al. High split ratio 116km reach hybrid DWDM-TDM 10Gb/s PON employing R-ONUs

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20240911

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250422

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250623

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20250729

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20250926

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20251021

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20251103

R150 Certificate of patent or registration of utility model

Ref document number: 7780111

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150