Dichroic Optics

Dichroic Optics Glass-Beam-Combiner

Product TypePart NumberDia (mm)Wavelength (nm)MaterialET (mm)
Beam CombinerBCBK-0.5-2-1064T650R12.71064T/650RN-BK72
Beam CombinerBCBK-0.5-2-808T1064R12.7808T/1064RN-BK72
Beam CombinerBCBK-0.5-3-1064T808R12.71064T/808RN-BK73
Beam CombinerBCBK-0.75-3-1064T650R19.11064T/650RN-BK73
Beam CombinerBCF-25-3-355T1064R25355T/1064RFused Silica3.5
Beam CombinerBCF-1-3.2-355T650R25.4355T/650RFused Silica3.2
Beam CombinerBCBK-1-3-532T650R25.4532T/650RN-BK73
Beam CombinerBCBK-1-3.5-650T1064R25.4650T/1064RN-BK73.5
Beam CombinerBCBK-1-3-1064T650R25.41064T/650RN-BK73
Beam CombinerBCBK-1.1-3-1064T650R27.91064T/650RN-BK73
Beam CombinerBCF-30-3-355T650R30355T/650RFused Silica3
Beam CombinerBCBK-1.5-3-532T650R38.1532T/650RN-BK73
Beam CombinerBCF-40-3-355T650R40355T/650RFused Silica3
Beam CombinerBCF-50-5-355T650R50355T/650RFused Silica5
Beam CombinerBCF-50-5-650T266R50650T/266RFused Silica5
Beam CombinerBCF-50-5-650T355R50650T/355RFused Silica5
Beam CombinerBCBK-50-5-650T532R50650T/532RN-BK75
Beam CombinerBCBK-2-5-1064T650R50.81064T/650RN-BK75
Beam CombinerBCBK-2-6.35-650T1064R50.8650T/1064RN-BK76.4
Beam CombinerBCBK-25x20x3-808T1064R25.0 x 20.0808T/1064RN-BK73
Beam CombinerBCF-30x50x5-650T355R30.0 x 50.0650T/355RFused Silica5
Beam CombinerBCBK-30×50-650T1550R30.0 x 50.0650T/1550RN-BK75

Beam Combiner is made by N-BK7 (BCBK) or Fused Silica (BCF). It merges two or more beams into one and is used for system alignment. It usually transmits a long-wavelength beam and reflects a short-wavelength beam whereas Reverse Beam Combiner transmits a short-wavelength beam and reflects a long-wavelength beam. Various Beam Combiner can transmit or reflects two or more wavelength beams.

Laser Engraving
Laser Welding

CO2-Laser Optics Beam-Combiner

Product TypePart NumberWavelength (nm)Dia (mm)ET (mm)Material
Beam CombinerBCZ-0.5-310600T / 650R12.73.0ZnSe
Beam CombinerBCZ-0.75-310600T / 650R19.13.0ZnSe
Beam CombinerBCZ-20-210600T / 650R20.02.0ZnSe
Beam CombinerBCZ-1.5-310600T / 650R38.13.0ZnSe
Beam CombinerBCZ-2-510600T / 650R50.85.0ZnSe

BCZ-Series represents ZnSe Beam Combiners that Wavelength Opto-Electronics offers to our customers. It is used for CO2 laser system alignment. It is designed at a 45° angle of incidence, it transmits a CO2 laser beam and combines the beam with the 90° reflected visible alignment beam.

Diameter Tolerance:
Thickness: ±0.25mm
Surface Flatness: λ/4 per 1″Dia@632.8nm
Surface Quality: 40-20 S-D
AOI: 45°


Product TypePart NumberWavelength (nm)Dia (mm)MaterialET (mm)Side 1 Reflectivity (%R)Polarization
Beam SplitterBSZ-0.5-3-10%R-PIS10600/940012.7ZnSe3.010%Insensitive
Beam SplitterBSZ-1-3-27%R-PIS10600/940025.4ZnSe3.027%Insensitive
Beam SplitterBSZ-1-3-50%R-PIS10600/940025.4ZnSe3.050%Insensitive
Beam SplitterBSZ-1.5-3-50%R-PIS10600/940038.1ZnSe3.050%Insensitive
Beam SplitterBSZ-2-5-50%R-PIS10600/940050.8ZnSe5.050%Insensitive

A beamsplitter splits input light into two, one part is transmitted while the other is reflected. The transmission and reflection of the light depends upon various parameters such as the incident angle, state of polarization, and wavelength of the input beam. Our company is capable of making Zinc Selenide beamsplitters (i.e., for CO2 optics) at 9.4µm and 10.6µm wavelengths. There is a substantial difference in the transmittance and reflectance values of s and p polarization at a 45° incident angle, so the beamsplitters designed here are for this angle.

Diameter Tolerance:
Thickness: ±0.25mm
Surface Flatness: λ/4 per 1’’ Dia@632.8nm
Surface Quality: 60-40 S-D

Polarization Optics Beam Splitter

Part NumberWavelength(nm)MaterialDiameter(mm)Thickness (mm)Angle of Incidence (°)
BSPP-266-45-1266Fused Silica25.46.3545
BSPP-266-45-2266Fused Silica50.86.3545
BSPP-355-45-1355Fused Silica25.46.3545
BSPP-355-45-2355Fused Silica50.86.3545
BSPP-532-45-1532Fused Silica25.46.3545
BSPP-532-45-2532Fused Silica50.86.3545
BSPP-980-45-1980Fused Silica25.46.3545
BSPP-980-45-2980Fused Silica50.86.3545
BSPP-1064-45-11064Fused Silica25.46.3545
BSPP-1064-45-21064Fused Silica50.86.3545
BSPP-1550-45-11550Fused Silica25.46.3545
BSPP-1550-45-21550Fused Silica50.86.3545
BSPP-266-B-1266Fused Silica25.46.35Brewster’s
BSPP-266-B-2266Fused Silica50.86.35Brewster’s
BSPP-355-B-1355Fused Silica25.46.35Brewster’s
BSPP-355-B-2355Fused Silica50.86.35Brewster’s
BSPC-UV-FS-1200-400Fused Silica25.4 x 25.4 x 25.4
BSPC-UV-FS-2200-400Fused Silica50.8 x 50.8 x 50.8
BSPC-VIS-FS-1400-700Fused Silica25.4 x 25.4 x 25.4
BSPC-VIS-FS-2400-700Fused Silica50.8 x 50.8 x 50.8
BSPC-NIR-FS-1750-1100Fused Silica25.4 x 25.4 x 25.4
BSPC-NIR-FS-2750-1100Fused Silica50.8 x 50.8 x 50.8

Description (Plate Beam Splitter -BSPP) 

Plate Beam Splitter Polarizers Diagram Plate Beam Splitter Polarizers Diagram 2

This polarizer splits light into two beams and transmits the p-polarized beam while reflects the s-polarized beam. The 45° angle of incidence makes mounting easier for optics comparing at Brewster’s angle of incidence. Due to the AR coating onto the surface, there is a high damage threshold that makes it useful for high optical power applications. Plate beam splitter polarizers are also used in photonics instrumentation, optical isolation and in many other applications. 

Plate Beam Splitter Polarizers are available with us in several wavelength ranges, desired wavelengths, shapes, sizes plus incidence angles and we can also make customer specifications.

Material: Fused Silica, N-BK7
Wavelength: 380-2100nm (N-BK7) | 200-2100nm (Fused Silica)
Angle Of Incidence: @ 45°, Brewster’s angle
Extinction Ratio: Tp/Ts  > 200:1
Surface Quality: 60/40 scratch and dig
Thickness: 3mm
Dimension: 0.5″, 1″ & 2″
Dimension Tolerance: +0.0/-0.2mm
Thickness Tolerance:  ±0.25mm
Damage Threshold: >5J/cm2, 20ns, 20Hz @ 1064nm

Description (Cube Beam Splitter – BSPC)

Cube Beam Splitter Polarizers Diagram Cube Beam Splitter Polarizers Diagram 2

Two right-angled prisms are put together by each hypotenuse respectively with the help of cement or optical contact to form a Cube Beam Splitter Polarizer. When an unpolarized light falls on the cube beam splitter polarizer, it separates input light into two polarization components and reflects the s-component of polarization.  Optical power tolerance is higher when the two prisms of the cube beam splitter are in optical contact thus usable for high power applications.  It is used in applications where the simplified mounting and system integration is an important aspect.  It is also used in the applications for imaging systems.

Our company offers Cube Beam Splitter Polarizer for a wide range of wavelengths (UV-NIR) in different dimensions for optimized performances.  A customized Cube Beam Splitter Polarizer can be manufactured based on our customer requirements.

Material: Fused Silica, N-BK7
Wavelength: 380-2100nm (N-BK7) | 195-2100nm (Fused Silica)
Surface Contact Type: Cemented, Optically Contacted
Extinction Ratio: Tp/Ts  > 1000:1 (Narrow Band) | >100:1/>1000:1 (Broad Band)
Surface Quality: 60/40 scratch and dig | 40/20 scratch and dig
Dimension: 0.5″, 1″ & 2″
Dimension Tolerance: ±0.2mm
Damage Threshold: >500mJ/cm2 | >5J/cm2

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