NKT Photonics Koheras ADJUSTIK HP, Product Manual

Page: 62 / 115

Enabling and disabling emission
62
Caution: Do not turn on the laser if it has been exposed to temperature and hu -
midity beyond the operating specifications. The laser is designed to operate in a
non-condensing environment from +15°C to +60°C. Before turning on the laser, al -
low it at least 30 minutes to stabilize at the operating room temperature. Turning
on a laser that is too cold or hot, may lead to the system being damaged.
Back reflection
When building and connecting your optical system, you must be careful to avoid
creating a path where back reflection (BR) can occur. BR occurs when a laser
beam is reflected back into the laser cavity. This increases noise and may cause
the laser beam to scatter causing damage or injury.
You must always reduce the risk of BR into the laser. For example, in a bulk-optic
system, ensure all reflective optics are securely fixed, minimizing the risk of back-
reflected light into the laser. Also, before turning on the laser the first time, check
the optical path to confirm no BR is possible from the application light path.
Warning: Back reflection is a hazard and may cause injury or damage to the laser.
Enabling and disabling emission
Enable emission
(CONTROL)
To turn on the laser using CONTROL follow the steps in
Procedure 3
.
Note: The laser is equipped with internal temperature sensors that monitor the
temperature of sensitive components. If these components are outside their
specified temperature range, the laser source will halt emissions.