COMMUNICATIONS COMPONENTS
Voltage-Controlled Optical Attenuators
VCB Series
Key Features
• High reliability for network applications
• Hermetically sealed
• Small size
• Potentiometer feedback to monitor attenuator settings
• Mountable on printed circuit board (PCB)
• Latching capability
• Single or multichannel applications
• Low loss
Applications
• Power equalization in multichannel
optically amplified networks
• Gain-tilt control in optical amplifiers
• Power control into narrowband
wavelength division multiplexers
(WDMs) and configurable networks
• Power control into receivers
The JDSU VCB Series of voltage-controlled optical attenuators is specifically
designed for highly reliable optical power control in network applications. They
are Telcordia GR-1221 compliant, through the use of hermetic sealing technology,
and feature latching capabilities. They show excellent optical performance over
the C and L bands.
Each attenuator uses a stepper motor driven by an external IC driver to achieve
fine attenuation resolution. The driver for the stepper motor is user-supplied to
move the motor up or down in uniform step sizes. Latching operation is a
standard feature; upon removal of the drive voltage, the most recent attenuation
setting is retained.
JDSU attenuators withstand the diverse environmental conditions encountered in
network applications. They ensure high reliability, particularly during long
quiescent periods.
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
VOLTAGE-CONTROLLED OPTICAL ATTENUATORS
3
Specifications
Parameter
Optimized wavelength range
Attenuation range
Attenuation resolution
Minimum insertion loss
1
Straight-through channel
2
With input monitoring tap detector
Attenuation temperature dependence
3
Attenuation wavelength dependence
Flatness
Ripple
2
Polarization dependent loss
1,4
Polarization mode dispersion
Return loss
1
Response speed
5
Attenuation setting repeatability
Attenuation setting backlash
Fiber type
Maximum optical power
Dimensions (W x H x D)
6
Operating temperature
Storage temperature
1. Excluding connectors.
2. Tapless model.
3. Relative to 23°C.
4. For attenuation up to 15 dB over the optimized wavelength range.
5. Considering 3 dB attenuation change.
6. Excluding strain relief and connector pins.
Specification
1525 to 1575 nm
>30 dB
≤0.1
dB
≤0.6
dB
≤1.2
dB
≤0.15
dB
Greater of 0.1 or 0.05 plus 1% of attenuation
≤0.6
dB
<0.2 dB
≤0.10
ps
>50 dB
≤100
ms
≤0.1
dB
≤0.2
dB
SMF-28 with 900 µm buffered jacket
50 mW
25 x 12 x 50 mm
-5 to 70°C
-40 to 85°C
VOLTAGE-CONTROLLED OPTICAL ATTENUATORS
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or
JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at
customer.service@jdsu.com.
Sample:
VCB0+1NC1.0NC1.0NC
VCB 0 +1NC
Code
0
Tap
Without taps
Code
1.0
2.0
.
Length 1
1.0 m
2.0 m
Code
NC
FP
FA
SC
SU
SP
Connector Type 1
No connector
FC/HPC
FC/APC
SC/HPC
SC/APC
ST/HPC
Code
1.0
2.0
.
Length 2
1.0 m
2.0 m
Code
NC
FP
FA
SC
SU
SP
Connector Type 2
No connector
FC/HPC
FC/APC
SC/HPC
SC/APC
ST/HPC
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
December 2009
Product specifications and descriptions in this document subject to change without notice. © 2009 JDS Uniphase Corporation 10143041 002 1209 VCB.DS.CC.AE
SMF-28 is a registered trademark of Corning Incorporated.
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