2 Chapter 1 General Information
• Constant Resistance
• Constant TE Current
Short term stability is less than 0.0005°C while long term stability is better than
0.001°C. Four sensor types are compatible with this TEC module:
• Thermistors
• AD590 series
• LM335 series
• 100
Ω
Platinum RTDs
With the sensor’s calibration constants, the actual laser diode temperature is
displayed in °C on the front panel.
Full Featured LDD Modules Offer Complete Test and
Characterization Capabilities
Advanced circuit designs and careful layout of 6500 series modules provide you with
an extremely low noise, highly stable output current. Current outputs range from 500
mA to 6 Amps. An external analog modulation input allows precision control of the
laser output for a variety of applications including power level control and
wavelength tuning. A monitor photodiode may be zero biased for CW low noise
applications or reversed biased up to -5 volts for high frequency modulation. All
laser diode parameters are accessible with 16-bit resolution including the laser
diode’s forward voltage for full characterization using any of the 6500 series
modules.
Comprehensive Safety Features Protect Your Laser Diode
Time tested laser diode protection safety features are incorporated into every Laser
Diode Driver offered. Input power module filters provide first stage protection
against transients. Additional filtering and power regulation stages coupled with high
speed transient detection circuits let you operate your laser diode worry free from
transients. A slow turn-on sequence, multiple output shorting circuits, and an
independent current limiting feature provide the superior protection you demand
from all your laser diode instrumentation.
Intuitive Controls and Character LCD Display Simplify
Control and Test Procedures
Improved data presentation and system control are achieved using a character LCD
display. A MASTER display shows the entire system configuration as well as each
module’s status. “Soft Keys” guide you through initial system setup routines and the
operation of each module. Real-time control of an output is accomplished either by
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