iXBlue ModBox VNA, Руководство пользователя

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ModBox VNA – User’s Manual
Ref. Ed. B – 12/05/2020 11
by a vector network analyzer. The optical signal obtained at the ModBox output
can then be converted back into the electrical domain using an optional
reference embedded photodiode. This allows users to characterize high speed
optoelectronics components.
The system incorporates a modulation stage based on a large bandwidth
custom designed LiNbO
3
Mach-Zehnder analog modulator coupled with high
performance control electronics to enhance the linearity stability of the system.
Customers can select lasers sources and photodiodes references depending
their wavelength and bandwidth requirements.
The ModBox-VNA provides state of the art modulation performance with the
peace of mind of a turn-key instrument to R&D and production engineers. This
system can be set as a reference in optical telecommunication labs or in tests
and production lines.
.
1.2.2
S
YSTEM
S
TRUCTURE
The ModBox VNA is a 19” 2U rackable modulation unit integrating:
• A modulation block :
o
One high bandwidth, chirp-free LiNbO
3
Mach-Zehnder analog
modulator
o
A high-performance automatic bias controller to stabilize the
modulator hence ensuring a highly stable output operation
•
Control electronics to operate the ModBox system either through the front
panel controls or through the Ethernet port on the rear panel
Optionally the system may embed:
•
A laser block integrating an extra low linewidth laser (single line or tunable)
with its high precision driver and with output power and wavelength real-
time control