THORLABS BC207UV, Руководство по эксплуатации, Страница: 14 / 181

BC207 Series Chapter 3: Operating Elements
Page 7
MTN026962-D02
Thorlabs Duster CA4-US or CA6-EU (Tetrafluoroetane). Keep the gas nozzle at least at a dis-
tance of 4 inches (10 cm) from the filter surface, otherwise liquid gas drops may hit the surface
and leave visible traces on the filter surface; moreover the air pressure might damage the mir-
ror.
Attention
For proper power measurement results, the actually chosen ND filter loss (in dB) must
be entered into the Beam Profiler Software! See section
Device Settings .
For correct beam profiling results it is highly recommended to shield ambient light from entering
the Beam Profiler aperture. Using attenuation filters provided within the filter wheel will attenu-
ate ambient light but will also absorb power of the light source by the same amount so that the
ratio between both remains unchanged.
3.1.1.2 CMOS Sensor Protective Glass Window
The CMOS sensor is protected by a glass window. The type of window depends on the BC207
Series model:
Camera Beam Profiler Coating Thickness
BC207UV(/M) UV Fused UV AR coating 1 mm
BC207VIS(/M) ND Filter NG3 1.0 OD 1 mm
3.1.1.3 Trigger Input
A TTL trigger input is provided for synchronizing the BC207 Series Camera Beam Profiler's
global shutter with laser pulses. The appropriate BNC connector to connect to a trigger out of a
laser driver is located on the back side of the instrument body, see the chapter Operating Ele-
ments
BC207UV(/M) and BC207VIS(/M) . More Information on how to use the trigger input is
described in the chapter Trigger in the software section of the manual.
3.1.2 Mounting BC207 Series
Post Mounting and Sensor Position
On the bottom side of the BC207 Series Camera Beam Profilers, a mounting thread is
provided. All metric models have M6 x 1 mm threads while the imperial models feature a 1/4"-
20 thread.
31
4
34