Turning On The Source; Adjusting The Laser Output Power; Turning The Laser Off - THORLABS HLS635 User Manual

Handheld Laser Source

5.1. Turning on the Source

The HLS635 can be used right out of the box safely, but it must be connected to
an AC outlet during use. Also, the battery will not charge while the device is
powered on and enabled.
The operation of the HLS is the same for power and cordless operation.
1. Remove the dust cap from the connector, clean the connector on an
FC/PC fiber patch cable, and insert it into the connector on the HSL.
2. Depress the Power/Enable button until the Power LED and one of the
Mode Indicator LEDs light, about 3 seconds.
3. Select the desired mode by briefly depressing the Mode button. The
three modes will cycle from Low, High, and a 2 Hz flashing mode
4. Momentarily press the Power/Enable button to enable the laser.
The Laser On indicator will light when the button is pressed and the laser output
will come on after a 2 second delay.

5.2. Adjusting the Laser Output Power

Pressing the Mode button will cycle through the three laser power settings:

Low power is approximately 1 mW,

High power is greater than 2.5 mW but not more than 5 mW, and

Pulse mode will flash the laser on and off at the High power value at 2 Hz.

5.3. Turning the Laser Off

Momentarily press the Power/Enable button to disable the laser, but keep the
unit powered on. The Laser On indicator will go out and the laser will be disabled.
Note that in this mode, the laser will not charge. The HLS635 can be put into
standby by holding the Power/Enable button for approximately 3 seconds. The
HLS635 is in standby when the Power indicator is not lit. Standby should be used
whenever possible maximize battery life if running on battery power.
Page 7 Rev E, January 11, 2018