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Laser Line Filters
Laser line filters are narrow bandpass filters centered on the the laser
wavelength. They are used to attenuate the background plasma and secondary
emissions that often result in erroneous signals in spectroscopic
measurements. In the case of diode lasers and LEDs, these filters can be
used to make the light output more monochromatic. Newlight Photonics Laser
line filters provide > 90% peak transmission with ultra steep edge slopes
for maximum spectral noise rejection.
Learn more about thin
film filters
Standard Laser Line Filters
|
Part # |
Laser Wavelength |
Typical Bandwidth (nm) |
Transmission at Laser Line |
OD6 Blocking |
| LF488 |
488nm |
1.46 |
>90% |
430 ~
560 nm |
| LF514 |
514.5
nm |
1.54 |
>90% |
455 ~
590 nm |
| LF532 |
532 nm |
1.60 |
>90% |
470 ~
610 nm |
| LF632 |
632.8
nm |
1.90 |
>90% |
560 ~
730 nm |
| LF785 |
785 nm |
2.36 |
>90% |
695 ~
900 nm |
| LF830 |
830nm |
2.49 |
>90% |
735 ~
950 nm |
| LF980 |
980nm |
2.94 |
>90% |
870 ~
1120 nm |
| LF1064 |
1064 nm |
3.10 |
>90% |
945 ~
1215 nm |
Laser line filters for other
laser lines are fabricated routinely in Newlight Photonics.
Please contact us for filters that best suit
your applications.
Laser Line Filter Specifications
|
Substrate Material: |
Low
fluorescence BK7 or equivalent |
| Substrate Size: |
Diameter 10 or 15 mm ± 0.1 mm, Thickness 3.3 ± 0.1 mm |
| Holder Size: |
Diameter 12.5 or 25.4 mm ± 0.1 mm , Thickness 5.0 ± 0.1 mm
|
| Peak
Transmission: |
>90% |
| FWHM
(typical): |
<0.3% of laser wavelength |
| FWHM
(maximum): |
0.6%
of laser wavelength |
|
Clear Aperture: |
68%
of central area |
|
Surface Quality: |
60/40 scratch and dig |
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