User`s manual

4200-DR Series LaserSource User’s Manual · Page 3
Introduction
Thank you for choosing the 4200-DR Series LaserSource from Arroyo
Instruments. The 4200-DR upgrades our popular 4200 Series with new features
and improved performance, all coming from a company with years of experience
in the field of current control for laser applications.
With a large, crystal clear VFD display, USB computer interface, and small
footprint, the 4200-DR will fit into almost any laser diode control application.
The 4200-DR includes complete optical isolation of both modulation and
photodiode inputs. By isolating these inputs, it prevents unwanted ground loop
problems. No other laser diode driver in the industry has this feature. The 4200-
DR also operates in constant voltage control mode, allowing you to use it in
precision voltage applications, such as EML devices, or for doing V-I
measurement graphs.
Unlike other controllers in its class, which use inexpensive 7-segment displays,
the 4200-DR takes advantage of its large VFD display to simultaneously show
the set points and measurements.
The user interface of the 4200-DR is engineered to make using the instrument
straightforward. With its text-based menus, there is never any confusion over
which setting is being changed, and parameters are displayed in clear English
(no cryptic numbers or LEDs to decode).
The 4200-DR offers all the features you would expect from a modern precision
laser driver, including:
 10ppm current stability
 100mA to 2A current ranges
 Comprehensive laser protection circuitry, including hardware voltage
and current limits, and fast transient shutdown.
 External analog modulation
 Power mode control, both in photodiode current (AMC) or computed
photodiode power (APC) modes.
 Simultaneous display of set points and readings
What’s in the Box
Along with the 4200-DR itself, a CD with electronic copies of this manual, the
Computer Interfacing Manual, and USB drivers are included. For USA
customers, a power cord is included. For non-USA customers, an IEC-60320-
C13 rated AC power cord must be provided.