MBC-IQ-LAB
IQ Modulator Bias Controller
The MBC-IQ-LAB is a bias controller designed to stabilize the three operating bias points of a dual parallel modulator. This new version is fully automated and uses a reduced dither signal to provide a rock stable setpoint of your phase delays over time and environmental conditions. It has been designed for optimal performance in CS-SSB applications to ensure a robust and steady optical carrier extinction.
Finally, a user-friendly Graphical User Interface - GUI - is provided for monitoring and (manual) setpoint adjustments if desired.
FEATURES
• Designed for I&Q modulators
• Automated bias points (Min, Min, Quad)
• High stability
• High sensitivity
APPLICATIONS
• Analog communications CS-SSB
OPTIONS
• Internal photodiode and tap coupler
• Dual drive IQ modulator
Performance Highlights
Parameter
Min
Typ
Max
Unit
DC bias voltage
-12
-
+12
V
Automated locking points
DC1 MIN, DC2 MIN, DC3 QUAD±
-
Control
Remote
-
Bias Control Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Timing Autoset
Auto
Automatic scan
-
20
-
s
Initialisation
-
Bias control stabilization time after a scan
-
30
180
s
Efficiency
Optical output power stability
-
Standard deviation, over 2 hours, and modulator temperature controlled
-
± 0.1
-
dB
Electrical Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
DC1, 2 bias voltage
Vbias
VDC1, VDC2
-12
-
+12
V
DC3 bias voltage
Vbias
VDC3
-13.5
-
+13.5
V
Locking point
DC1
Automated
MIN (0 %)
-
DC2
Automated
MIN (0 %)
-
DC3
Automated
QUAD- (-50 %), QUAD+ (+50 %)
-
Dither frequency DC1
FDC1
-
-
1120
-
Hz
Dither frequency DC2
FDC1
-
-
840
-
Hz
Dither amplitude
VDC1, 2, 3
-
5
-
1 000
mVpp
Dither amplitude step
DVDC1, 2, 3
-
1
-
-
mVpp
Optical Characteristics
Parameter
Symbol
Condition
Min
Typ
Max
Unit
MBC-IQ-LAB-A1: MBC with embedded PD and tap-coupler Wavelength
l
-
1530
1550
1625
nm
Insertion loss
IL
-
-
1.4
-
dB
MBC-IQ-LAB-A0: MBC without PD and tap-coupler Wavelength
l
MBC-IQ-LAB-A0
900
-
1 600
nm
Absolute Maximum Rating
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect device reliability.
Parameter
Symbol
Condition
Min
Typ
Max
Unit
Operating temperature
-
-
-10
-
+45
°C
Storage temperature
-
-
-40
-
+70
°C
Dimensions
Dimensions (W x H x D)
220 mm x 220 m x 52 mm
Power supply (rear panel)
100-120 V / 220-240 V automatic switch, 50-60 Hz
Interfaces
Photodiode Input /coupler input
FC/APC connector
Bias Output
Specific DB9 connector to single channel connector
Communication
USB
Remote Control
Minimum computer requirements
Windows XP SP3
Computer configuration
Recommended Windows XP-SP3, W7, W8
Ordering information
MBC-IQ-LAB-A0: No coupler, 900nm to 1600nm
MBC-IQ-LAB-A1: Integrated coupler ,1530 nm to 1625 nm