Features:
- TEC Safeguards
- Choice of Temperature Sensors
- Adjustable PID Control Loop
The ThorLabs TED80XX Series Temperature Control Cards are manufactured in a wide range of thermo-electric temperature control modules ranging from from +/- 2A/16W to +/- 8A/64W, with 16 bit resolution. The
TED8000 series modules provide excellent temperature
stabilization, typically +/-0.001°C when using an AD590 thermal
sensor, for optimal laser operation and other applications requiring
precise thermal control. In general, this facilitates highly stable
operation of temperature sensitive components; one example is
optical nonlinear birefringent crystal experiments, where phase
matching requires sensitive control of the crystal's temperature.
Separate adjustment of the P, I and D settings of the PID servo
loop, enable optimal settling times for different thermal loads. If the
TED8000 module is used with a laser diode control module in the
same chassis, the temperature window protection feature switches
the laser diode current off if the temperature of the laser departs
from a preset temperature window (high and low thresholds).
The TED8000 series of temperature controllers operate within ThorLabs
PRO8000 series mainframe, and are ideal companions to ThorLabs
LDC8000 laser diode current controller modules.
With up to 64 Watts of cooling power, the TED8080 is well
matched to ThorLabs LDC8080 laser diode control module that provides
8A laser drive current. Laser diodes typically
operate at approximately 2 to 3 Volts forward bias voltage. At 8A,
this results in an overestimated thermal load of 16W to 24W,
assuming 0% lasing efficiency and all the electrical energy is
converted to thermal energy.
When using ThorLabs eight channel laser controller (MLC8000 series),
the TED8080 is an ideal choice to temperature stabilize a large
number of lasers mounted on a common cold plate. Consider eight
MLC modules, each operating eight lasers at 200mA (maximum
for the MLC8080 series). Assuming the lasers are operated at 3V,
the maximum total thermal load for the system (assuming 100% of
the laser current is converted to thermal energy) is 38.4W. This is
well within the 64W capacity of the TED8080.
Damage to the TE cooler is prevented by setting an adjustable TEC
current limit. This can either be set via a recessed potentiometer on
the module front panel (hardware limit), via the front panel
softkeys or one of the standard interfaces (software limit).
When used with our laser diode current controllers, an additional
laser diode safety feature can be enabled; a temperature window
protection can be activated. If the laser temperature departs from
the preset window, the laser current will be switched off
immediately. The temperature modules of the TED8000 series
meet extremely high standards regarding precision and drift
performance and provide a low noise, bipolar output. This enables
extremely stable wavelength control and safe thermal load
management.
The temperature modules of the TED 8000 series can be operated
with thermistors, AD590/AD592 IC sensors and LM335
transducers. When operated with a thermistor the thermistor
calibration constant can be set so that all applicable settings and
displays can be done directly in °C, rather than Ω (ohms).
With the modules of the TED8000PT series a Pt100 temperature
sensing element can be operated replacing the IC sensor.
For extremely low temperature applications, such as the operation
of a lead-salt lasers, a factory-installed kryo option is offered for all model
temperature modules. As a Pt1000 sensor is used for operating
temperatures in the range of 20 to 310K, the controller is modified
to control a heating element.
The P-, I- and D- settings of the temperature control loop
can be set via menu-driven softkeys or via one of the remote
interfaces. This ensures fast laser temperature settling times.
Combination laser current / temperature control modules are also
manufactured (ITC8000 series). Cable
CAB420-15 is used with each of the TED8000 modules to
connect them with any of our laser diode mounts.
The TED8020 Thorlabs Temperature Control Card may still be available for purchase and support from Artisan Technology Group beyond End-Of-Life (EOL) by the manufacturer (OEM).
Artisan Scientific Corporation dba Artisan Technology Group is not affiliated with or a distributor for Thorlabs. The depiction, description, or sale of products featuring names, trademarks, brands, and logos is for identification and/or reference purposes only and does not indicate any affiliation with or authorization by any rights holder.