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).

Yokogawa broad lineup of OTDRs offer cost performance , field durability, and applicable dynamic range. Yokogawa's thirty year history of innovation in reflectometry design delivers technology solutions where you need them most.


Selection Guide
Category Model Wavelength & Dynamic Range
1310 1550 1625 1650 1490 850 1300
AQ7275 OTDR 735031 30
735032 34 32
735033 40 38
735034 43 41
735035 34 32 30
735036 40 38 33
735037 40 38 30
735038 40 38 36
735041 40 38 22.5 24
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

Optical Time Domain Reflectometer AQ7280

Optical Time Domain Reflectometer AQ7280

In 2002, Yokogawa became a leading supplier of optical test and measurement solutions following the acquisition of Ando Electric. Today, with over 30 years of experience in optoelectronic technology and real world lab and field testing, Yokogawa is justifiably qualified to deliver field test equipment solutions with the world renowned quality and exceptional performance expected from an industry pioneer. 

Optical Time Domain Reflectometer AQ7275

Optical Time Domain Reflectometer AQ7275

The AQ7275 is one of the best selling OTDRs in the world. Model lineup has been expanded to a total of 9 models to choose from with a dynamic range of up to 45dB . Wavelength capability spans from 850nm (MMF) to 1650nm (SMF). An impressive 0.8m event dead zone makes this model an excellent choice for FTTH and metro, core networks.

MFT-OTDR Optical Time Domain Reflectometer AQ1200

MFT-OTDR Optical Time Domain Reflectometer AQ1200

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.

Remote Optical Time Domain Reflectometer AQ7277

Remote Optical Time Domain Reflectometer AQ7277

High performance OTDR module for Remote Fiber Test System.

OTDR Emulation Software AQ7932

OTDR Emulation Software AQ7932

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.


All Products Guide
All Products Guide
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