WA-1150 and WA-1650 Wavemeter Operating Manual
1 Introduction
EXFO Burleigh Products Group Inc. (09042-M-00 Rev C)
1-1
1.
Introduction
This section provides general information on the WA-1150 and WA-1650 and
information on unpacking and setting them up.
Overview
EXFO’s WA-1150 and WA-1650 Wavemeter
optical wavelength meters are
instruments designed for simple, automatic and accurate wavelength measurement of
continuous wave (CW) and modulated laser sources. They analyze interference fringes
produced by the input laser radiation in a scanning Michelson interferometer with a
built-in reference laser.
Both the WA-1150 and WA-1650 have microprocessor-based electronics that allow
accurate counting and analysis of interference fringes. The microprocessor computation
automatically corrects for the refractive index of air, using data from built-in temperature
and pressure sensors and converts the resulting measurement to units of nm or GHz. The
microprocessor also makes it possible for the WA-1150 and WA-1650 to calculate and
display the deviation between the measured wavelength and starting point, or compute
the average of up to 128 measurements. Refer to Section 4
, Theory of Operation &
Calibration
, for additional information on the theory of operation.
Introduce laser light into the WA-1150 or WA-1650 by attaching your fiber-optic cable
to the fiber-optic connector on the front of the unit. The standard connector is the EXFO
universal
FC/UPC connector. FC/APC, SC/UPC, SC/APC and
ST/UPC connectors are
available as an option at the time of order.
The instrument’s front panel has controls to review data and review and change
parameter values. Refer to Section 2,
Front Panel Controls and Screens
, for
information on the controls and display and setup screens.
The WA-1150/WA-1650 have a built-in bi-directional RS-232 interface and a GPIB
interface for transmitting data and remotely controlling the instrument. Refer to Section
3,
Remote Communications
, for information on these interfaces and the SCPI
communication scheme.
The Monitor port on the back of the system provides access to the interferometer fringe
signals and timing signals that govern the wavelength measurement. Refer to Appendix
D,
Rear Panel Controls
, for further information.
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