Yokogawa Electric Corporation
Test and Measurement Instrumentation
Optical test equipment or optical measuring instruments are used to measure and characterize the physical properties of light. The insatiable demand for higher capacity in communication networks has fueled the need for highly precise optical test solutions. In addition, precision optical measurements are essential to optical research applications for biophotonics, environmental sensing, and consumer products.
R&D engineers, academic researchers, manufacturing engineers, and field service personnel depend on precision optical test equipment to ensure design and performance specifications, production quality, and network health. For more than thirty years, Yokogawa (formerly Ando) has delivered quality, consistency, ease of use, and market leadership for optical test applications
- Optical Instrumentation

Optical Spectrum Analyzers, Wavelength Meters, Power Meters, Light Sources, Time Domain Reflectometers and Modular Systems
- Spectrum Analyzers
- OTDRs
- Wavelength Meters
- Modular System
- Portable Power Meters
AQ6370D Optical Spectrum Analyzer
600 to 1700 nm, ideal for the characterization and test of optical components and systems used in the tele-communications Industry.
AQ6373B Optical Spectrum Analyzer
350 to 1200 nm, Designed to out-perform in optical measurements taken in VIS (visible) and NIR (near infrared) regions.
AQ6375B Optical Spectrum Analyzer
1200 to 2400 nm, detection and precise characterization of signals emitted in the exNIR (extended Near InfraRed) and SWIR (Short-Wavelength InfraRed) regions
AQ7280 Optical Time Domain Reflectometers (OTDR)
Multi-tasking, Optical Power Meter & Checker, Optical Light Source and Time Domain Reflectometer All-in-one Unit.
• High-Performance, measures optical fiber lengths and losses and identifies failure locations.
• Multi-tasking
AQ7275 Optical Time Domain Reflectometers (OTDR)
High-Performance , measures optical fiber lengths and losses and identifies failure locations.
• 9 models available with Wavelength capability from 850nm (MMF) to 1650nm (SMF)• Tests up to 4 wavelengths
• Short Dead Zone:<0.8m (2.7 ft) Enables multiple close range event detection
AQ1200 Optical Time Domain Reflectometer
(MFT-OTDR) Compact handheld multi-function chassis, fully equipped with powerful field testing functions & easy to operate
• 7 models available with Wavelength capability from 1310nm (MMF) to 1650nm (SMF)• Tests up to 4 wavelengths
• Short Dead Zone (0.8 m)
AQ7277 Remote Optical Time Domain Reflectometer
High performance OTDR module for Remote Fiber Test Systems• Measurement at 1650 nm (Maintenance wavelength)
• Built-in 1310/1550 nm cut filter for live-fiber monitoring
• Allow to test PON system through high-port-count splitter
High-Performance and cost-effective
The AQ6150 Optical Wavelength meter series is ideal for accurately measuring the optical wavelength of optical devices and systems used in telecommunication applications from 1270 to 1650 nm (including C&L Band)
• High wavelength accuracy of ±0.3pm• Cope with modulated light and optical filter measurement
• Simultaneous measurement of up to 1024 wavelengths
Frame Controllers – Modular Manufacturing Test System
The AQ2200 multi-application Test System is the ideal system for measuring and evaluating a wide range of optical devices and optical transmission systems. A variety of measurement modules are available
• Hot-swappable modules
• A broad lineup of measurement modules
AQ1100 Multi-function Optical Loss Test Set
Optical Light Sources and Optical Power meter in one unit. Designed for field operations with a 5.7" screen, yet weighing under 3.3lbs / 1.5kg, the AQ1100 provides a USB port for data storage and optional PING test function and Visible Fault Light. It can be configured for standard power measurements, high power measurements or FTTH with 1490/1550nm parallel measurements
AQ2170 and AQ2170H Optical Power Meters
Compact portable optical power meters are crucial tools to test and verify that insertion losses are within specifications in fiber links deployed by cable TV, enterprise, service provider, carrier, Ethernet and FTTH networks.
• AQ2170 – +10 dBm max. power (Standard)• AQ2170H – +26 dBm max. power (High Power)
• Up to 7 working wavelengths
AQ2180 and AQ2180H Optical Power Meter
Compact portable optical power meters are crucial tools to test and verify that insertion losses are within specifications in fiber links deployed by cable TV, enterprise, service provider, carrier, Ethernet and FTTH networks.
• AQ2170 – +10 dBm max. power (Standard)• AQ2170H – +26 dBm max. power (High Power)
• Up to 7 working wavelengths
AQ4280A, AQ4280B and AQ4280C Optical Light Source
Yokogawa’s AQ4280 light source is a crucial tool for field use in certifying and commissioning networks. Designed for testing FTTH networks (1310, 1490, and 1550 nm), cable TV, enterprise, service provider, carrier and Ethernet networks.
• AQ4280A ; 1310/1550nm• AQ4280B ; 1310/1490/1550nm
• AQ4280C ; 1310/1550,1490/1625nm (2 ports)