Anritsu MW9076 User Manual
MW9076Series
Optical Time Domain Reflectometer
1.31/1.45/1.55/1.625 µm (SM), 0.85/1.3 µm (GI)
Tomorrows Technology, Today
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Highest Performance,
Functions, and
Measuring Speed
■ 45 dB high dynamic range
■ 8 m short dead zone
■ Simple measurement of chromatic dispersion from one end of
optical fiber
■ Measurement in 10 s (Full-Auto mode), 0.15 s real-time sweep
■ Automatic execution of functions such as wavelength/channel
switching, file saving, printing, etc., just by pressing Star t key
in repeat measurement mode
■ 5 cm high resolution, 50,000 sampling points
■ 8.4 inch transparent type TFT-LCD color display
■ 7.8 inch reflective type STN-LCD color display for easy viewing
under direct sunlight
■ Optional 4 or 8 optical channel selector
■ 6-hour battery life with remaining-power display
■ Data read/write in Bellcore GR196 file format
Model MW9076B1 MW9076B MW9076C MW9076D1
Optical fiber SM SM SM SM
Dynamic range
40.5/38.5 dB (typical value)
45/43 dB (typical value)
41.5/39.5/37 dB
34.5/33.5/32.5/30.0 dB
Dead zone (Fresnel/back-scattered)
1.6/8 m 1.6/8 m 1.6/8 m 3/25 m
Chromatic dispersion
✓
Light source function
Optical power meter
✓
✓✓
Visible LD
✓✓✓✓
Features
•
High cost performance
• Short dead zone
• Low cost
•
Highest class model
•
Wide dynamic range
• Short dead zone
• Three wavelengths
•
L-band measurement
•
Chromatic dispersion
measurement
• Four wavelengths
•
Wavelength accuracy:±3 nm
✓✓
High power
optical power meter
✓✓✓
Optical channel selector
Options
✓
✓
✓
Wavelength
1.31/1.55 µm
± 25 nm
1.31/1.55 µm
± 25 nm
1.31/1.55/
1.625 µm ± 25 nm
1.31/1.45/1.55/
1.625 µm ± 3 nm
MW9076J MW9076K
GI GI
21 dB 21/25 dB
2/7 m 2/7 m
✓✓
• For GI fiber
• Short dead zone
• For GI fiber
• Dual wavelengths
• Short dead zone
0.85 µm ± 30 nm
0.85/1.3 µm ± 30 nm
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● High-Speed Measurement
It takes only 10 seconds to measure and display the waveform and connection loss on one screen. Just one press of
the Start key is all that is needed to make measurement.
● Short Dead Zone
Clearly measure up to near end by 8 m dead zone (back-scatter,
SM unit)
● High Dynamic Range
When using a wavelength of 1.55 µm (SM), a point about
190 km distant can be measured.
The high dynamic range and short dead zone of the MW9076B/B1/C permit accurate measurement of fiber loss
and distance. And a new ASIC speeds up data measurement too.
1.6m
A
B
C
Optical Loss Measurement
A
B
C
188 km optical fiber cable
5
● Fresnel Reflection
The far-end Fresnel reflection can be measured for four
wavelengths (1310/1450/1550/1625 nm).
● Group Delay Characteristics
The fitting formula supports cubic or quintic Sellmeier, and
polynomials can be applied to various types of fibers.
● Chromatic Dispersion Characteristics
The zero and total dispersion can be displayed along with the
delay, dispersion and dispersion slope at 0.1 nm steps.
The MW9076D1 has a built-in function for measuring chromatic dispersion even outdoors. The chromatic dispersion can be
measured automatically over a wide range from 1300 to 1660 nm from one end of the fiber. The dispersion reproducibility is
±0.05 ps/(nm
•
km)∗and the dynamic range is 30 dB.
The MW9076D1 can be operated from an external PC using remote commands to measure the chromatic dispersion.
For detail of the chromatic dispersion measurement, refer to the document of “Product introduction MW9076 series Optical Time
Domain Reflectometer.”
∗ Measured with 25 km of 1.3 µm zero-dispersion fiber (ITU-T G.652) at 1550 nm.
Chromatic Dispersion Measurement
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Compact, Lightweight, and Easy to Operate
OTDR (main frame)
Lithium ion battery
mounted, with
remaining power
display
Connector for
external CRT
Display unit
Measurement conditions
can be changed at measurement screen
Large easy-to-read 8.4
inch TFT-LCD
Simultaneous display of
measured results and
event table
Rotary encoder for easy moving markers
A
B
C
D
E
F
G
K
HIJ
LM N
O
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