Connecting Components - THORLABS ITC8 Series Operation Manual

Connecting components

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1.6 Connecting components
Mostly the following components are installed together with the laser:
• Laser diode
• Monitor diode
• TEC element for chip temperature control
• Temperature sensor
The laser diode and the TEC element are always sourced relative to ground by the
combined module.
This is of considerable advantage regarding the safety of devices and stability of
currents.
The monitor diode input is a trans impedance amplifier input with input impedance
0Ω.
The monitor diode input can be operated without or with bias voltage (0 V...10 V).
The polarity for the monitor diode must be set accordingly.
(Refer to 2.2.5, "Adjusting the bias voltage for the monitor diode" on page 33)
The sensor input can handle different types of sensors.
A missing sensor or selection of a wrong type is detected by the ITC8xxx.
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