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Laser line
filters are narrow bandpass filters centered on the resonance
of the laser, which attenuate the background plasma and
secondary emissions that often result in erroneous signals.
Application
diode lasers , LEDs ,Instruments
Features
- high transit efficiency to 70%
- low wavelength shift to 1nm
- low scratch loss
- optical performence stable
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Specifications:
| Substrate |
BK7 |
| Dimensions
|
10mm, 12.7+0/-0.2mm diameter, 3 ± 0.2mm
thickness |
| Center Wavelength |
± 1nm |
| Transmission
|
>90% (>85%
for #47-539, >80% for #47-612)) |
| Blocking
|
OD > 5.0 Range
except l ±1.0% |
| Angle of
Incidence |
0.0 ± 2.0° |
| Beam Deviation
|
<11 arc sec. |
| Transmitted
Wavefront |
1/4 wave RMS @ 633nm |
| Surface Quality
|
60-40 |
| Coating |
"Hard" Ion-beam sputtered |
| Temperature
Dependence |
<5ppm/°C |
| Environmental
Durability |
MIL-STD-810F |
| Physical
Durability |
MIL-C-48497A |
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Filter