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.

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
  • Designed to increase productivity of field personnel for optical access networks 
  • 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)

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      
Overview:

This paper describes a compact optical channel monitor and a delayed interferometer having free-space optical elements such as lenses or mirrors, as an application of microoptics. These devices have been developed to be built into dense wavelength division multiplexing (DWDM) transmission systems. These optics use a Gaussian beam which is emitted through single-mode optical fibers and located near the optical axis. This paper explains the optical designs of these devices based on the Gaussian beam's behavior.
SANPEI Yoshihiro*1  SUZUKI Yasuyuki*2   IEMURA Kouki*3   ASANO Junichirou*3


*1
Communication and Measurement Business Headquarters, Optical Communication Measurement Development Department

*2Communication and Measurement Business Headquarters, Core Technology Development Department

*3Photonics Business Headquarters, Engineering Department IV

Overview:

We are currently aware of this issue occuring on model Optical Time Domain Reflectometer AQ7270's with firmware Ver. 1.02. Please download and install the latest firmware version from the Yokogawa software drivers & firmware website: ...

Overview:
On the AQ7270 OTDR, there is an Averaging Method function with two measurement modes: High Speed or High Reflection. High SpeedThe high speed mode is used to measure all sections using a fixed attenuation setting. If ...
Overview:

To delete all user files from the internal memory of the AQ7270 or AQ7275 Optical Time Domain Reflectometer (OTDR), follow the procedures listed below: Power up the AQ720 or AQ7275 OTDR Press the OTDR soft key Press the FILE key Press the ACTION soft ...

Overview:

Yes, the AQ7275 has a USB 1.1 port that can be used to remotely control the OTDR.

Overview:

The SU2005A-LCC universal connector is physically compatible with AQ7275, but we do not recommend it because we expect poor connection repeatability and return loss. We cannot guarantee the performance of AQ7275 when ...

Overview:
The maximum visible light source distance that can be seen by the AQ7275, through a standard SM fiber, is approximately 5 km or 3.1 miles.
Overview:

The Chopped Light mode is used: To increase measurement level sensitivity by cutting the high frequency noise To detect only the light that the LS emitted, effective for free space measurement. In free space ...

Overview:

The Cursor value on the AQ7270 Optical Time Domain Reflectometer displays the level in dB that the signal is above the noise floor of the optical port you are connected to. The noise floor is basically the Dynamic range. This lets you know if you are approaching the ...

Overview:

Yes, the AQ7932 OTDR Emulation Viewer Software is compatible with Windows 7 32-bit and 64-bit. Note: Please make sure the correct USB driver is installed for either Windows 7 32-bit or 64-bit.

Overview:

Yes, the AQ7270 Optical Time Domain Reflectometer Viewer Software is compatible with Windows 7 32-bit and 64-bit. Note: Please make sure the correct USB driver is installed for either Windows 7 32-bit or 64-bit.

Overview:

Please download the attached Word document for a list of compatible USB drivers for the AQ7270 and AQ7275 Optical Time Domain Reflectometer Series.

Overview:

No, unfortunately due to the number of current fiber combinations, we do not stock optical fibers. There are many companies that specialize in optical fiber cords.

Overview:

The cursor value displays the level (dB) of the signal that is above the noise floor of the connected optical port. The noise floor is the dynamic range. This lets you know if you are approaching the maximum distance ...

Overview:

This comprehensive training module covers:

  • Introduction & Product Familiarization
  • Basic Parameter Setup Steps
  • Intuitive Icon-Based Event Detection with Smart Mapper
  • Wireless File Transfer with a Smartphone App

Product Overviews

    Overview:

    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.

How-tos

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