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BS Coatings

BS Coatings The beam-splitting film is a kind of thin film material with special optical properties, which can separate or combine the incident light according to different wavelengths. The design and manufacture..

Product description

The beam-splitting film is a kind of thin film material with special optical properties, which can separate or combine the incident light according to different wavelengths. The design and manufacture of the beam-splitting film aim to achieve the functions of light splitting and wavelength selection. In the manufacturing process of beam splitters and dichroic mirrors (internal components of optical instruments), the beam-splitting film is plated to realize the screening and reflection of different wavelength bands. It is widely used in many fields such as spectral analysis, optical instruments, optoelectronics, the solar energy field, display technology, and optical coatings.

Substrate Material	Wavelength	Reflectivity Requirement	Reflectivity Requirement
pigtail	1064/1310/1550 ± 20nm	T/R = 50%/50% ± 2%	T/R = 80%/20% ± 2%
G/C-lens	1064/1310/1550 ± 20nm	T/R = 50%/50% ± 2%	T/R = 80%/20% ± 2%
H-K9L	1064/1310/1550 ± 20nm	T/R = 50%/50% ± 2%	T/R = 80%/20% ± 2%
Fused Quartz	1064/1310/1550 ± 20nm	T/R = 50%/50% ± 2%	T/R = 80%/20% ± 2%

Coating Type		Performance and Application
Beam-splitting Film Layer	Polarizing Beam Splitter	High reflection for s-polarized and antireflection for p-polarized for laser application.


	Broadband Polarizing Beam Splitter	Wide wavelength bandwidth provide high reflection to s-polarized and antireflection to p-polarized.
	Non-polarizing Beam Splitter	The low polarization dependence of the metallic dielectric hybrid coating allows the transmission and reflection of S-polarization and P-polarization states to be within 6% of each other.

Laser Line Polarization Beamsplitter Coating

PBS 632.8nm Rs>99.5% & Rp<5% @632.8nm AOI=45Deg

Broadband Polarization Beamsplitter Coating

Rs>99.5% & Rp = 2±1% @ 770nm~800nm AOI=45Deg

Rs>99% & Rp<5% @ 800nm~1100nm AOI=45Deg

Non-polarizing beamspiltter Coating

Rs:Ts = Rp:Tp = 50:50 @ 632.8nm AOI=45Deg

Tp = Ts = Rp = Rs = 45%, |Tp - Ts|<6%, |Rp - Rs|<6%,
Absorbtion<10%@430nm~670nm
Red Line - Tp, Blue Line - Ts