Horizontal And Vertical Fine Adjusters (Standard Slms); Slm Head (High-Power Slms); Trigger Output Connector (Sma) - THORLABS EXULUS-HD2 User Manual

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EXULUS Spatial Light Modulators
3.4.2.

Horizontal and Vertical Fine Adjusters (Standard SLMs)

Adjust the horizontal and vertical tilt of the Liquid Crystal panel. The designed
adjustment range is ±3.2° for both horizontal and vertical.
3.4.3.

SLM Head (High-Power SLMs)

The SLM head integrates a built-in liquid cooling module and an NTC thermistor.
The NTC thermistor temperature can be read out by Thorlabs' LK220 liquid chiller
or TSP01 temperature logger, as well as any third-party temperature logger
compatible with the thermistor pin assignment once connected to a 2.5 mm stereo
jack (see below).
Figure 18 Pin Diagram for Connecting to the Thermistor
The SLM head is compatible with 30 mm cage system, as well as the Polaris 1"
mirror mount (Item # POLARIS-K1) for additional panel tip/tilt adjustments. Two
valved coupling inserts for 1/4" diameter hose are pre-installed for easy connection
to Thorlabs' cooling system (Item # LK220), which is the recommended cooling
system for EXULUS-HD3HP. For more information, please refer to Chapter 4.1.
3.4.4.

Trigger Output Connector (SMA)

The trigger output connector (female SMA) on the SLM generates an output signal
which can be used to synchronize external devices with the SLM.
The output signal is 5 V TTL with a pulse width of 54 μs. The frequency follows the
refresh rate of the SLM panel.
Rev F, December 7, 2020
Figure 19 Trigger Timing Graph
Chapter 3: Introduction
Page 11