产品名称：光纤相位解调器-Optical Phase Demodulator
The OPTIPHASE ® OPD-4000 is the world’s leading instrument for high-precision
interferometric measurement applications.Developed by experts in the use of fiber based
interferometry, the OPD-4000 delivers previously unattained levels of cost-effective
performance and ease-of-use for a wide variety of applications.
The OPD-4000 is a simple yet powerful instrument for measuring interferometric phase.
The unique and patented digital process provides for simultaneous low noise and high
dynamic range operation. For anyone designing, developing or using a fiber-based
interferometer, there is no better way to get faster, easier and more cost effective
measurement results.The OPD-4000 is a DSP based large-angle
optical phase demodulator. It performs demodulation of interferometers that can
accommodate Phase Generated Carrier [PGC]modulation [see chart below]. Through precise
monitoring of the received optical signal, the OPD-4000 automatically determines the proper
parameters for gain-optimizing the receiver signal, stabilizing modulation depth at π radians
and sampling phase for accurate quadrature signal extraction. Optical phase is determined
through inverse trigonometric functions and dynamic range is enhanced via fringe counting.
The measured optical phase is a 32 bit word updated once per modulation cycle. Output
formats are digital [USB 2.0] and 20 bit analog.A Polarization Diversity Receiver is available for
those needing to address polarization fading.The OPD-4000 ships with PhaseViewTM
software, a powerful MS Windows based userinterface for easy set-up and data transfer.
Whether you are conducting research and development, designing photonic components
or sensor systems, the OPD-4000 will serve asan indispensable tool in all your applications.
Outside the R&D arena the OPD-4000 is a powerful productivity tool reducing labor and
material costs in quality assurance testing,industrial process controls or service and repair
operations.The OPD-4000 has no commercial equivalent as a general-purpose interferometric phase
measurement instrument. With the user-friendly PhaseView? software and indicators for input
signals and modulation levels, the user is free to perform the task of taking critical measurements.
FEATURES & BENEFITS：
All digital processing
High resolution / precision [6 μrad]
32 bit digital output covering ±2000 fringes
Adjustable modulation frequency
Selectable high pass filter for digital and analog outputs
Selectable data averaging
Enable/disable servos
Single or Multi-channel configurations
Built-in optical receiver
Polarization Diversity Receiver option
USB 2.0 interface
Quick set-up and on-the-fly parameter changes
PhaseView™ software for system set-up, control, monitoring and data capture.
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