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CTL200
CTL200 User Guide
This user guide is for the CTL200 v5+. For previous versions, please refer to
the <v5
guide.
Laser connections
The CTL200-1 / CTL200-2 is compatible with Type 1 / Type 2 butterfly laser diodes. Note that it is compatible
with
floating
diodes.
Butterfly laser type 1 pin configuration
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Summary of Contents for Koheron CTL200
- Page 1 This user guide is for the CTL200 v5+. For previous versions, please refer to the <v5 guide. Laser connections The CTL200-1 / CTL200-2 is compatible with Type 1 / Type 2 butterfly laser diodes. Note that it is compatible with floating diodes.
- Page 2 Power supply The CTL200 is provided with a 5.9 V / 3 A power supply. The CTL200 is supplied with 5 V or 6 V via the barrel connector. With 5 V power supply, compliance voltages are reduced by 1 V. To supply the board with 5 V supply, set the SW3 position to ON.
- Page 3 CTL200 start up, the CTL200 will load the user-defined configuration and the serial interface is no longer needed. The CTL200 can be controlled directly from a serial port terminal (e.g. Teraterm on Windows) with the following configuration: Baud rate: 115200...
- Page 4 CTL200 ilmax Software current limit R/W mA 1000.0 1000.0 lckon Disable | enable interlock functionality lmodgain Laser current AIN1 modulation gain R/W mA/V 0 +100000.0 100000.0 tecon Disable | enable TEC current tprot Disable | enable temperature protection rtset Thermistor resistance setpoint R/W Ω...
- Page 5 B7: INTERLOCK_TRIGGERED (err = 80) Modulation inputs The CTL200 has two current modulation inputs available on SMA connectors: DC modulation input for modulation between DC and 10 MHz. A jumper allows to choose between 3 modulation gains (Low = 250 µA/V, Medium = 2.5 mA/V or High = 25 mA/V for the 200 mA version).
- Page 6 CTL200 Interlock An optional interlock functionality can be activated with the lckon 1 command. Laser current is then disabled when the LCK pin is pulled low. The figure below shows the use of the interlock with an external opto-isolator: Once laser current has been disabled, the serial command lason 1 must be sent to re-enable the laser current.
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