|
¡¡ |
|
He-Ne Laser System
|
|
¡¡
|
|
Specifications
|
|
Model
|
SL-HN250
|
|
Output
Power @ 25 ¡æ
|
>2mW
|
|
Wavelength
|
632.8nm
|
|
Beam Mode
|
TEM00
|
|
Max. drift (mean power measured over 8 hours) |
¡À2.5% |
|
Mode purity (TEM00)
|
>95%
|
|
Polarization ratio (minimum) |
No ,
500: 1 or 1000£º1 |
|
Beam divergence (TEM00, +-3%, mrad-full angle)
|
1.3 mrad
|
|
Beam diameter (1/e points, +-3%, TEM00)
|
0.63mm
|
|
Longitudinal mode spacing (nominal)
|
730MHz
|
|
Max. mode sweeping contribution
|
3% |
|
Max. warm-up time (minutes to 95% power)
|
10 min.
|
|
Static alignment
|
Center to outer cylinder
|
< ¡À0.254mm
|
|
Parallel to outer cylinder
|
< ¡À1mrad |
|
Input voltage |
220VAC
|
|
Maximum noise (rms, 30 Hz to 10 MHz) |
0.1%
|
|
Power consumption |
8W |
|
Operating current |
4.9mA
|
|
Length of laser head |
|
|
Adjustment range |
¡À5¡ã
|
|
Operating temperature |
-40 ~ +70¡æ |
|
Non-operating temperature |
-40 ~ +150¡æ |
|
Warranty time |
One year |
