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850 nm BrightLine® Multiphoton LaserMUX Beam Combiner

Semrock Part Number: FF850-Di02-t1-25x36

IDEX Part Number: FL-439711  /

Semrock

Multiphoton LaserMUX™ beam combiners enable deeper tissue imaging and improved contrast in multi-color and multi-modal fluorescence microscopy. The filters set new performance standards by simultaneously achieving high transmission, high reflection, and low GDD over both reflection & transmission, while maintaining minimal wavefront distortion. Ideal for combining two femtosecond pulsed laser beams, they are perfect for optogenetics and other life science applications.

Combine two or more femtosecond pulsed lasers such as Ti:Sapphire (& OPO coupled), neodymium and ytterbium-doped fiber and glass lasers, and Cr-forsterite lasers.

< 1λ P-V RWE on 1 mm, optimized for reflecting laser beams up to 10 mm in diameter while minimizing RWE
< λ/10 P-V Transmitted Wavefront Error

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Optical Specifications Value
Transmission Band 1 Tavg > 93% 890 – 2100 nm over any 10 nm window
Transmission Band 1 (p-pol) Tavg > 95% 845 – 2100 nm
Transmission Band 1 (s-pol) Tavg > 90% 890 – 2100 nm
Reflection Band 1 Ravg > 95% 670 – 815 nm over any 10 nm window
Reflection Band 1 (p-pol) Ravg > 90% 670 – 815 nm
Reflection Band 1 (s-pol) Ravg > 98% 670 – 849 nm
Edge Wavelength 1 850 nm
General Filter Specifications Value
Angle of Incidence 45 ± 1.5 degrees
Cone Half-angle 2 degrees
Optical Damage Rating 50 mJ/cm² @ 800 nm (50 fs pulse width); test pending; specification based on FS01 Mirror test results
Transmitted Wavefront Error λ/10 PV over CA @ 632.8 nm
Flatness / RWE Classification   Super-resolution / TIRF
Reflected Wavefront Error < 1λ P-V RWE @ 632.8 nm
Steepness Standard
Group Delay Dispersion Transmission (p-pol) 1 ± 100 fs² over 917 - 2050 nm (excluding substrate, by design)
Group Delay Dispersion Transmission (p-pol) 2 ± 500 fs² over 873 - 2100 nm (excluding substrate, by design)
Group Delay Dispersion Transmission (s-pol) 1 ± 100 fs² over 965 - 2050 nm (excluding substrate, by design)
Group Delay Dispersion Transmission (s-pol) 2 ± 500 fs² over 913 - 2100 nm (excluding substrate, by design)
Group Delay Dispersion Reflection (p-pol) 1 ± 100 fs² over 691 - 795 nm
Group Delay Dispersion Reflection (p-pol) 2 ± 500 fs² over 683 - 812 nm
Group Delay Dispersion Reflection (s-pol) 1 ± 100 fs² over 670 - 828 nm
Group Delay Dispersion Reflection (s-pol) 2 ± 500 fs² over 670 - 840 nm
Physical Filter Specifications   Value
Transverse Dimensions (L x W) 25.2 mm x 35.6 mm
Transverse Tolerance ± 0.1 mm
Clear Aperture ≥ 85% (elliptical)
Scratch-Dig 60-40
Filter Thickness (unmounted) 1.05 mm
Filter Thickness Tolerance (unmounted) ± 0.05 mm
Orientation Reflective surface marked with laser dot - Orient in direction of incoming light
TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Working with Optical Density Tables to describe the relationship between OD and transmission with tips for quickly calculating OD

Specifications

TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Working with Optical Density Tables to describe the relationship between OD and transmission with tips for quickly calculating OD