What do optical time domain reflectometer (otdr) displays and controls encompass?

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.

Inhaltsverzeichnis Show

Single Mode Optical Fiber
Multi Mode Optical Fiber
Single Mode Optical Fiber + Multi Mode Optical Fiber
Product Overviews
What does an optical time domain reflectometer OTDR display?
What is the function of OTDR?
Which is the optical detector used in OTDR?
What are the three functional components of an optical power meter?

OTDR Working Principle: How does an optical time domain reflectometer work? The OTDR launches a series of high speed optical pulses into the fiber to be measured. Various events on the fiber generate a Rayleigh back scatter that returns to the OTDR. 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.

Optical Time Domain Reflectometer uses: OTDR testing parameters 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.

AQ1000 optical time domain reflectometer
Increase productivity optical access networks field personnel
Intuitive and responsive
One-button measurement
Trace and map view

Yokogawa AQ7280 Optical Time Domain Reflectometer (OTDR)
Fast and precise measurements with confidence
Satisfies broad range of test and measurement needs
Analyzing optical networks from access to core

Yokogawa AQ1210 series OTDR
Fast and precise
Optical time domain reflectometer delivers high reliability
Harsh field conditions
Multi-touch touchscreen, automatic measurement

AQ7933 is application software to display and analyze waveform data measured by Yokogawa OTDRs and create a work report on a PC. This software provides more intuitive operability than the conventional software, helping field engineers to reduce their work.

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.

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

Selection Guide

Selection Guide

Single Mode Optical Fiber

AQ7280

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB) (Typ)	Application	Fiber Network
1310 nm	1383 nm	1490 nm	1550 nm	1625 nm	1650 nm	Installation	Maintenance	Research ・ Manufacturing	Core	Metro	Access	PON
Dark	Live
AQ7282A	2			1	38			36			●	●					●	●
AQ7283A	2	●		1	42			40			●	●				●	●	●
AQ7284A	2	●		1	46			45			●	●			●	●	●
AQ7285A	2	●		1	50			50			●	●			●	●	●
AQ7283E	3	●	●	2	42			40	40		●	●	●			●	●	●
AQ7283F	3	●	●	2	42			40		40	●	●	●			●	●	●
AQ7282G	3			1	38		36	36			●	●					●	●
AQ7283H	3	●		1	42			40	39		●	●	○			●	●	●
AQ7284H	3	●		1	46			45	44		●	●	○		●	●	●
AQ7283K	4	●		1	42		38	40	40		●	●	○			●	●	●
AQ7283J	4	●		1	42	39		40	40		●	●	○			●	●	●
AQ7286A	2	●		1	42			40						●
AQ7286H	3	●		1	42			40	39					●
AQ7286J	4	●		1	42	39		40	39					●

○: Using an external filter

AQ1210

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB) (Typ)	Application	Fiber Network
1310 nm	1383 nm	1490 nm	1550 nm	1625 nm	1650 nm	Installation	Maintenance	Core	Metro	Access	PON
Dark	Live
AQ1210A	2			1	37			35			●	●			●	●
AQ1215A	2	●		1	42			40			●	●		●	●	●
AQ1210E	3		●	2	37			35	35		●	●	●		●	●
AQ1215E	3	●	●	2	42			40	39		●	●	●	●	●	●
AQ1215F	3	●	●	2	42			40		37	●	●	●	●	●	●
AQ1216F	3	●	●	2	42			40		40	●	●	●	●	●	●

AQ7277B

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB) (Typ)	Application	Fiber Network
1550 nm	1650 nm	Installation	Maintenance	Core	Metro	Access	PON
Dark	Live
AQ7277B-B01	1	●	●	1		40		●	●		●	●	●
AQ7277B-B02	1	●		1	50			●		●	●	●

AQ1000

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB) (Typ)	Application	Fiber Network
1310 nm	1383 nm	1490 nm	1550 nm	1625 nm	1650 nm	Installation	Maintenance	Core	Metro	Access	PON
Dark	Live
AQ1000	2			1	32			30			●	●	●

Multi Mode Optical Fiber

AQ7280

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB)	Application
850 nm	1300 nm	Installation	Maintenance
Dark	Live
AQ7282M	2			1	25	27	●	●

Single Mode Optical Fiber + Multi Mode Optical Fiber

AQ1210

Model	Number of wavelength	High DR	Cut Filter	Number of OTDR port	Dynamic range (dB)(Typ)	Application	Fiber Network
Installation	Maintenance	Core	Metro	Access	PON
1310 nm	1550 nm	MM 850 nm	MM 1300 nm	Dark	Live
AQ1210D	4			2	37	35	25	27	●	●	●	●

Product Overviews

How-tos

What does an optical time domain reflectometer OTDR display?

Optical Time Domain Reflectometer (OTDR) It can verify splice loss, measure length and find faults. The OTDR is also commonly used to create a "picture" of fiber optic cable when it is newly installed. Later, comparisons can be made between the original trace and a second trace taken if problems arise.

What is the function of OTDR?

What is an OTDR? It is a fiber optic instrument used to characterize, troubleshoot and maintain optical telecommunication networks. OTDR testing is performed by transmitting and analyzing pulsed laser light traveling through an optical fiber.

Which is the optical detector used in OTDR?

Semiconductor photodiodes are the most commonly used detectors in optical fiber systems since they provide good performance, are compatible with optical fibers (being small in size), and are of relatively low cost.

What are the three functional components of an optical power meter?

An optical power meter measures photon energy in the form of current or voltage from detection devices such as photodiodes, thermopiles or pyroelectric detectors. Three major components can be considered: the (detector) interface, the analog board and the digital board.