Description

Glass vs Polycarbonate Plastic Filters

Lasermet offer a wide range of laser filters which include both polycarbonate and glass filters. Users should be aware of the pros and cons of each type before making a decision on which to buy.

---

Plastic Laser Filter Windows

Cost-effective, lightweight protection in large sizes for low power lasers and diffuse reflections from high power lasers 

We are able to supply any of these filters in custom sizes up to the largest size available (typically 915 x 610 mm). We are also able to supply them machined to an engineering drawing if desired, ready for assembly into your system. This is cost effective for larger numbers of windows or where there is an ongoing requirement.

Click on the Filter part number to see the OD curve.

TT RANGE PLASTIC LASER FILTERS

Filter Part Number	Laser Type	Wavelength (nm)	Optical Density	VLT% / Colour	Thickness (mm)
TT-F-A	UV CO2	190 – 375 10600	> 5 > 6	90% / clear	4.75
TT-F-B	Argon ion KTP	190 – 532 10600	> 5 > 5	41% / orange	3.6
TT-F-C	Ruby HeNe Red Diode	190 – 375 630 – 730 650 – 720 670 – 710 10600	> 5 > 2 > 3 > 5 > 5	63% / blue	3.6
TT-F-D	Nd:YAG Near IR	190 – 375 800 – 900 900 – 1070 1064 1100 – 1400 10600	> 5 > 2 > 5 > 6 > 3 > 5	40% / green	3.6
TT-F-E	Nd:YAG Near IR KTP Argon ion	190 – 375 375 – 533 800 – 900 900 – 1070 1100 – 1400 10600	> 5 > 4 > 2 > 5 > 3 > 5	16.5% / brown	3.6
TT-F-F	Alexandrite	720 – 870 730 – 855 750 – 840	> 3 > 5 > 7	25% / pink	3.6
TT-F-G	Nd:YAG	190 – 400 800 – 1080 860 – 1064 1064 10600	> 5 > 3 > 5 > 6 > 5	65% / yellow-green	3.2
TT-F-H	Nd:YAG Near IR	190 – 375 760 – 1070 1064	> 5 > 5 >6	42% / tan	3.8
TT-F-I	UV He:Cd Near IR Nd:YAG Telecom	190 – 400 400 – 480 750 – 1900 800 – 1800 830 – 1700 1064 10600	> 5 > 2 > 2 > 3 > 5 > 6 > 5	25% / green	3.6

SIZES

The full part number is obtained by taking the filter reference and adding the part number suffix. For example, TT-F-G-A4 is filter reference TT-F-G in size 210 x 297 mm. Custom sizes are also available.

---

Glass Laser Filter Windows

High visible light transmission and high protection levels

Below is the range of glass laser viewing windows. Please note that these are available only in the sizes specified.

Filter Part Number	Laser Type	Wavelength (nm)	Protection Level to EN 207	VLT% / Colour	Thickness (mm)
FW-LRG1KBA	Nd:YAG Ho:YAG Er:YAG CO2	950 – 1000 >1000 – 1050 >1050 – 1400 >1400 – 2700 >2700 – 3000 5400 – 5400 10600 – 10600	DIR LB5 D LB6 + IR LB7 D LB6 + IR LB8 D LB4 + IR LB3 DIRM LB4 DIRM LB4 DIRM LB4	70% / clear	5 – 6
FW-LRG1KFA	Nd:YAG Ho:YAG Er:YAG CO2	900 – 1050 >1050 – 1400 >1400 – 3000 >3000 – 11500	DIRM LB6 D LB7 + IR LB8 + M LB9 DIRM LB4 DI LB4 + R LB2 + M LB3	60% / light grey	7
FW-LRS1DAA	UV KTP	180 – 315 >315 – 355 >355 – 367 >367 – 369 >369 – 371 >371 – 373 >373 – 375 >375 – 377 >377 – 380 >380 – 384 3950 – <4700 4700 – <4765 4765 – <5200 5200 – 14500 5400 – 5400 9000 – 11500 >14500 – 25000	D LB10 + IR LB4 + M LB6Y D LB6 + IR LB8 + M LB7Y D LB6 + IR LB8 + M LB7Y D LB6 + IR LB7 + M LB7Y DIRM LB6 DIRM LB5 DIRM LB4 DIRM LB3 DIRM LB2 DIRM LB1 DIM LB4 + R LB3Y DIM LB5 + R LB3Y DI LB5 + R LB3Y + M LB6Y DI LB5 + R LB3Y + M LB6Y D LB4 + I LB3 D LB4 + I LB3 DI LB5 + R LB3Y + M LB6Y	90% / clear	6
FW-LRG1EBA	UV KTP	180 – 315 315 – 532	D LB10 + IR LB5 + M LB5Y D LB7 + IR LB8 + M LB8Y	30% / orange	5 – 8
FW-LRG1KCA	Nd:YAG Ho:YAG Er:YAG CO2	900 – 1000 >1000 – 1050 >1050 – 1400 >1400 – 2100 >2100 – 25000	DIRM LB4 DIRM LB7 D LB7 + IR LB8 + M LB8Y DI LB5 + R LB3Y + M LB3 DIM LB4 + R LB3Y	66% / light grey	7
FW-LRG1LEA	UV KTP Nd:YAG	180 – 315 315 – 532 1030 – 1100	D LB10 + IR LB5 D LB7 + IR LB8 + M LB8Y D LB7 + I LB9 + R LB8 + M LB8Y	30% / orange	8 – 10
FW-LRG1KAA	Ruby Near IR Nd:YAG CO2	647 – 689 690 – 749 750 – 1200 >1200 – 1320 >1320 – 1400 >1400 – 1520 >1520 – 1550 9000 – 11000	DIRM LB3 DIRM LB6 D LB7 + IR LB8 + M LB8Y DIRM LB6 DIRM LB3 DIRM LB3 DIRM LB2 DI LB3	45% / green	7
FW-LRG1QCA	Alexandrite Nd:YAG	630 – 635 750 – 800 >800 – 1064 >1064 – 1100 >3000 – 25000	0.01W 2x10E-6J RB1 D LB6 + IRM LB8 D LB6 + IR LB8 + M LB9 D LB6 + IRM LB8 DI LB4 + R LB3Y + M LB4Y	45% / green	4 – 5

SIZES

These glass filter windows are available in A4 size (297 x 210mm) except for FW-LRG1KBA and FW-LRG1QCA (200 x 100mm).
FW-LRS1DAA is available up to 3000 x 2000mm.