StopLine® Thin-film Single Notch Filters

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StopLine single-notch filters are available in three grades determined by passband range, laser-line blocking level, and notch bandwidth.

StopLine Filter Type	Passband Range (nm)	Laser-line Blocking
"E grade"	350 nm to 1600 nm	> 6 OD
"U grade"	0.75 x λ_Laser to λ_Laser / 0.75	> 6 OD
"S grade"	0.75 x λ_Laser to λ_Laser / 0.75	> 4 OD

StopLine single-notch filters are available from stock for the following laser wavelengths. Each filter is housed in a labeled, black-anodized aluminum ring with a diameter of 25 mm and a thickness of 3.5 mm.

Laser Wavelength		Passband Range	Laser Line Blocking	Typical 50% Notch Bandwidth	Part Number
405 nm	E Grade	330 - 1600 nm	> 6 OD	9 nm	NF03-405E-25
405 nm	S Grade	330 - 540 nm	> 4 OD	12 nm	NF02-405S-25
441.6 nm	U Grade	331.2 - 588.8 nm	> 6 OD	11 nm	NF01-442U-25
441.6 nm	S Grade	331.2 - 588.8 nm	> 4 OD	14 nm	NF02-442S-25
488 nm	E Grade	350 - 1600 nm	> 6 OD	14 nm	NF03-488E-25
488 nm	S Grade	366.0 - 650.7 nm	> 4 OD	16.9 nm	NF02-488S-25
514.5 nm	U Grade	385.9 - 686 nm	> 6 OD	16 nm	NF01-514U-25
526.5 nm	U Grade	394.9 - 702 nm	> 6 OD	17 nm	NF01-526U-25
532 nm	E Grade	350 - 1600 nm	> 6 OD	17 nm	NF03-532E-25
532 nm	U Grade	399 - 709.3 nm	> 6 OD	17 nm	NF01-532U-25
561.4 nm	E Grade	350 - 1600 nm	> 6 OD	19 nm	NF03-561E-25
568.2 nm	U Grade	426.2 - 757.6 nm	> 6 OD	20 nm	NF01-568U-25
594.1 nm	U Grade	445.6 - 792.1 nm	> 6 OD	22 nm	NF01-594U-25
594.1 nm	S Grade	445.6 - 792.1 nm	> 4 OD	25 nm	NF02-594S-25
632.8 nm	E Grade	350 - 1600 nm	> 6 OD	25 nm	NF03-633E-25
658 nm	E Grade	350 - 1600 nm	> 6 OD	27 nm	NF03-658E-25
785 nm	E Grade	350 - 1600 nm	> 6 OD	39 nm	NF03-785E-25
785 nm	U Grade	588.8 - 1046.7 nm	> 6 OD	39 nm	NF01-785U-25
808 nm	E Grade	350 - 1600 nm	> 6 OD	41 nm	NF03-808E-25
808 nm	U Grade	606 - 1077.3 nm	> 6 OD	41 nm	NF01-808U-25
830 nm	U Grade	622.5 - 1106.7 nm	> 6 OD	44 nm	NF01-830U-25