Optical Time Domain Reflectometer

An optical time domain reflectometer (OTDR) is a precision instrument used to locate events or faults along a fiber link, typically within an optical communications network. The OTDR launches a series of high speed optical pulses into the fiber to be measured. Various events on the fiber generates a Rayleigh back scatter that returns to the OTDR and the strength of the return pulses are measured and integrated as a function of time, and plotted as a function of fiber length. The horizontal axis is the distance and the vertical axis is the loss.

OTDRs are mainly used in the optical fiber installation and maintenance servicing of access networks (communications links between telephone exchanges and telephone poles) and user networks (communications links between user sites and telephone poles).

Our broad lineup of OTDRs offer cost performance, field durability, and applicable dynamic range. With thirty years of innovation in reflectometry design we deliver technology solutions where you need them most.

  • Responding to the growing needs for reliable and ease-of-use field test instruments for installation and maintenance of fiber optic networks, Yokogawa AQ7280 Optical Time Domain Reflectometer (OTDR) is designed to empower field technicians to make fast and precise measurements with confidence.The AQ7280 satisfies a broad range of test and measurement needs in analyzing optical networks from access to core.

  • High performance OTDR module for RFTS (Remote Fiber Test System)

  • The AQ1200 Multi Field Tester OTDR is a compact and lightweight handheld OTDR optimized for the installation and maintenance of optical fiber cables. Designed with ease of use in mind to simplify field testing, improve work efficiency and ensure qualify results. Seven models are offered, each with unique wavelength(s) based on their specific application.

  • AQ7932 is application software that performs analysis of trace data from the OTDR on a PC, and conveniently creates professional reports. The built-in report creation wizard function makes this task simple, quick and easy.

Category Model Wavelength & Dynamic Range
1310 1490 1550 1625 1650 850(MM) 1300(MM)
AQ7280 OTDR AQ7282A 38   36        
AQ7283A 42   40        
AQ7284A 46   45        
AQ7285A 50   50        
AQ7283F 42   40   40 *    
AQ7283H 42   40 39      
AQ7284H 46   45 44      
AQ7283K 42 38 40 40      
AQ7282M           25 27
AQ1200 MFT-OTDR AQ1200A 32   30        
AQ1200B       30 *      
AQ1200C         30 *    
AQ1200E 32   30 30 *      
AQ1205A 40   38        
AQ1205E 40   38 33 *      
AQ1205F 40   38   30 *    
* Built-in filter  



    The AQ7270 OTDR maximizes the total working time during on-site tests as the time to power up the device, make measurements, and analyze and store the measurement results are significantly reduced. The measurement results can easily be transmitted to computers using the USB interface or the Ethernet. The analysis software (optional), helps with preparation of computer-generated reports.