Skip to main content
  • Investors
  • Partners
  • Blog
  • Contact Us
VIAVI Solutions
Back
  • United States
  • 中国
  • 日本
  • Brasil
  • СНГ
  • Deutschland
  • España
  • France
  • Mexico
  • United Kingdom
    • Lab and Manufacturing
      • Lab and Manufacturing
        • Application Emulation
        • Automation and Orchestration
        • UE Emulation
        • Cloud UE Emulation
        • Core Emulation
        • Core Test
        • O-CU Simulator
        • O-CU Test
        • O-DU Test
        • O-RU Test
        • RIC Test
        • Security Validation
        • Test as a Service (TaaS)
        • Ethernet Test
        • High-Speed Networks
        • Optical Manufacturing Test
      • Compute, Storage, Transport
        • Compute, Storage, Transport
        • PCI Express
        • SAS and SATA
        • Fiber Channel, Ethernet, FCoE, NVMeoF
        • Protocol Analyzers
        • Exercisers and Generators
        • Jammers
    • Network Deployment and Maintenance
      • Network Deployment and Maintenance
        • Antenna Alignment and Monitoring
        • Asset and Data Management
        • Cell Site Installation and Maintenance
        • Cable and Antenna Analyzer
        • Interference Hunting
        • RF Analysis
      • Fiber
        • Fiber
        • Asset and Data Management
        • Attenuators
        • Bit Error Rate
        • Copper, DSL, WiFi and Broadband Test
        • DOCSIS Test
        • Essential Fiber Optic Testers
        • Ethernet Test
        • Fiber Characterization
        • Fiber Identifiers
        • Fiber Inspection and Cleaning
        • Fault Locators
        • Fiber Optic Sensing
        • Fiber Optic Light Sources
      • Fiber (cont.)
        • Fiber (cont.)
        • HFC Test
        • MPO Testing
        • Optical Multimeter
        • Optical Power Meters
        • Optical Spectrum Analyzers (OSA)
        • OTDR Testing
        • PON Testing
        • Remote Fiber Test and Monitoring
        • Virtual Test and Activation
        • AIOps
        • Core Network Assurance
        • Ethernet Assurance
        • Remote Fiber Test and Monitoring
      • Service Assurance
        • Service Assurance
        • 5G Service Assurance and Analytics
        • AIOps
        • Fiber Service Assurance
        • HFC and Cable Service Assurance
        • Transport Assurance
      • Lab and Manufacturing
        • Lab and Manufacturing
        • Automation and Orchestration
        • Application Emulation
        • Cloud UE Emulation
        • Core Emulation
        • Core Test
        • O-CU Simulator
        • O-CU Test
        • O-DU Test
        • O-RU Test
        • RIC Test
        • Security Validation
        • Asset and Data Management
        • Remote Fiber Test and Monitoring
        • Virtual Test and Activation
        • AIOps
        • Ethernet Assurance
        • Remote Fiber Test and Monitoring
    • Railway and Mission-Critical
      Railway and Mission-Critical
      • Railway and Mission-Critical
      • Drive Test
      • ERTMS Monitoring
      • FRMCS Monitoring
      • Railway Cybersecurity
      • REC Monitoring
      • Mission Critical Assurance
      • Performance and Threat Visibility
        • Performance and Threat Visibility
        • End-User Experience
        • Enriched Flow Collection
        • Network Data Collection
        • Packet Analysis
        • Packet Capture Collection
        • Packet Meta-Data Collection
        • Threat Exposure Management
      • Test and Certification
        • Test and Certification
        • Bit Error Rate
        • Ethernet Test
        • Fiber Identifiers
        • Fiber Inspection and Cleaning
        • Fiber Optic Sensing
        • MPO Testing
        • Optical Power Meters
    • Land Mobile and Military Radio
      Land Mobile and Military Radio
      • Land Mobile and Military Radio
      • Communications Service Monitors
      • Land Mobile Radio Test
      • Military Radio Test
      • Modular Instrumentation
      • Software Defined Radio and System Solutions
    • Avionics
      Avionics
      • Avionics
      • ADS-B Compliance
      • Aircraft Fuel Quantity Test Sets and Interfaces
      • Antenna Couplers
      • Distance Measuring Equipment (DME)
      • Fiber Optic Avionics
      • GPS Signal Simulators
      • Military Avionics
      • Modular Instrumentation
      • Navigation and Communication
      • Radio Altimeters (RADALT)
      • Radio Frequency Automatic Test Equipment (RF ATE) Systems
      • Tactical Air Navigation System (TACAN)
      • Traffic Collision Avoidance System (TCAS)
      • Transponder and Interrogator
    • Position, Navigation and Timing
    • Custom Optics and Pigments
      • Custom Optics and Pigments
      • Custom Optics
        • Custom Optics
        • Custom Optical Filters
        • Light Shaping Optics
        • MicroNIR Spectrometers
      • Pigments
        • Pigments
        • Brand Protection
        • ChromaFlair Pigments
        • Security Pigments
        • SpectraFlair Pigments
    • All Products
      All Products
      • All Products
      • All Products
      • Products by Family
      • Discontinued Products
    • Services
      Services
      • Services
      • Instrument Care Plans
      • Refurbished Equipment
      • Repair and Calibration
      • System Maintenance and Contracts
      • Training and Certification
      • VIAVI Automated Lab-as-a-Service for Open RAN (VALOR)
      • Order Services
      • Wireline
        • Wireline
        • DWDM
        • Ethernet Service Activation Test
        • Fiber Construction
        • Fiber Network Solutions
        • FTTx
        • HFC Network Test
        • MPO Connector Testing
        • Passive Optical Network (PON)
        • Rural Broadband
        • Test Process Automation (TPA)
        • Transport Network Operations
      • Wireless
        • Wireless
        • 5G Solutions
        • 5G Security
        • 5G Synchronization
        • 6G Forward
        • Automated Lab-as-a-Service for Open RAN
        • Cell Site Installation
        • Cloud-Based Testing
        • Interference Hunting
        • MU-MIMO Test
        • Network Digital Twin
        • Non-Terrestrial Networks
        • Open RAN
        • Private 5G
        • RAN Intelligence Solutions
      • NITRO
        • NITRO
        • NITRO AIOps
        • NITRO Cable
        • NITRO Core
        • NITRO Enterprise
        • NITRO Fiber
        • NITRO Fiber Sensing
        • NITRO Location Intelligence
        • NITRO Transport
        • NITRO Wireless
        • Artificial Intelligence and Machine Learning
        • Cloud-Based Testing
        • Edge Computing
        • Hyperscale
        • Performance Management and Security
        • RANtoCore
        • WAN Performance Testing
        • Data Center Interconnect
        • MPO Connector Testing
        • Tier 1 (Basic) Fiber Optic Certification
        • Tier 2 (Extended) Fiber Optic Certification
    • Enterprise and Data Center
      • Enterprise and Data Center
      • Performance Management and Security
        • Performance Management and Security
        • Cloud Monitoring
        • End-User Experience Monitoring
        • High-Fidelity Threat Forensics and Remediation
        • Network Performance Monitoring
        • Threat Exposure Management
        • Unified Communications
      • Test and Certification
        • Test and Certification
        • Cloud-Based Testing
        • Data Center Interconnect
        • Ethernet Service Activation Test
        • Fiber and Copper Test and Certification
        • Tier 1 (Basic) Fiber Optic Certification
        • Tier 2 (Extended) Fiber Optic Certification
        • MPO Connector Testing
        • WAN Performance Testing
        • VPN Management Solution
    • Network Equipment Manufacturers
      Network Equipment Manufacturers
      • Network Equipment Manufacturers
      • 5G Network Equipment Manufacturers
      • Analytics Enablement
      • Cloud-Based Testing
      • Coherent Optics Testing
      • Field Deployment
      • Non-Terrestrial Networks
      • Open RAN Security Test
      • Scalable Manufacturing
      • Technology and Service Introduction
      • Test and Development
      • General Aviation
      • Military Aviation
      • Optical Coatings and Filters
    • Government, Aerospace and Defense
      Government, Aerospace and Defense
      • Government, Aerospace and Defense
      • Electromagnetic Warfare
      • Field Test
      • Military Aviation Testing
      • Payload & Device Optical Elements
      • Radar
      • Research, Development and Manufacturing
      • Secure and Reliable Communications
      • Spectrum Monitoring and Signal Analysis
    • Custom Optics and Pigments
      Custom Optics and Pigments
      • Custom Optics and Pigments
      • 3D Sensing
      • Anti-Counterfeiting
      • Automotive
      • Consumer Electronics
      • Custom Color Solutions
      • Government and Aerospace
      • Industrial
      • NIR Spectroscopy
      • Spectral Sensing
    • Contractors
      Contractors
      • Contractors
      • Cell Site Installation
      • Enterprise and Data Center
      • Residential Broadband Services Installation
      • Solutions for Field Technicians
      • Solutions for Installers
      • Solutions for Operations Managers
    • Utilities
  • How to Buy
    • Request a Quote
    • Request a Demo
    • Check Order Status
    • Contact Us
    • Equipment Rental
    • Financing Options
    • How to Order Products
    • How to Order Services
    • Locate a Partner
    • Refurbished Equipment
  • Resources
    • Learning Center
      Learning Center
      • Learning Center
      • What are Cloud Solutions?
      • What is 5G Energy Consumption?
      • What is 5G Testing?
      • What is a Hyperscale Data Center?
      • What is End-User Experience Monitoring?
      • What is Fiber Construction?
      • What is Fiber Optic Sensing?
      • What is Fiber Testing?
      • What is OTDR Testing?
      • What is Packet Capture?
      • What is PCIe 6.0?
      • What is RF Interference?
      • View All Topics
    • Literature Library
    • Blog Posts
    • Subscription Center
    • Video Library
    • Webinars
    • Customer Support
      Customer Support
      • Customer Support
      • Customer Portal
      • Customer Service
      • Technical Support
      • Return Material Authorization (RMA)
      • How-To Videos
      • Knowledge Base
      • Quick Cards and Tech Tips
      • Software Downloads
      • Warranty, Quality and Compliance
    • About Us
      About Us
      • About Us
      • Awards and Recognition
      • Environment, Social, and Governance (ESG)
      • Leadership
      • Our Locations
      • Together with VIAVI
    • Careers
      Careers
      • Careers
      • Career Paths
      • Search and Apply
      • Early-Career Program
      • Life at VIAVI
      • What We Value
      • Events
      • In the News
      • News Releases
      • Blog Posts
      • Subscription Center
    • Partners
      Partners
      • Partners
      • Locate a Partner
      • Partner Portal Login
      • Compliance
      • Data Privacy and Data Security
      • Patents
      • Product Environmental Compliance
      • Privacy Policy
      • Terms and Conditions
      • Terms of Use
    • Contact Us

  • Product
    Japanese

    CWDM 光スペクトラムアナライザモジュール（COSA-4055）

  • Load More
Corporate
  • About Us
  • Careers
  • Investor Relations
  • News Releases
  • Partners
  • Social Responsibility
Areas of Expertise
  • 3D Sensing
  • 5G Testing
  • Avionics
  • Fiber
  • Service Assurance
Support
  • Customer Service
  • Technical Assistance
  • Technical Support Portal
  • Repair and Calibration
  • Software Downloads
How to Buy
  • Request a Quote
  • Contact Sales
  • Locate a Partner
  • Order Status
viavi logo
  • Facebook
  • Instagram
  • LinkedIn
  • Twitter
  • YouTube
Subscription Center

© 2024 VIAVI Solutions Inc.

  • Cookie Preferences
  • Contact Us
  • Sitemap
  • Terms of Use
  • Privacy Policy
  • Technical Assistance
  • Request RMA
  • Request a Quote
  • Locate a Partner
  • Customer Portal
  • Contact Us