Ideal for Femtosecond laser applications due to the low GVD
Works over Broad wavelength range
Separates the s- and p- polarization components
Standard Thin Film Polarizers are available from stock
Broadband (Ultrafast) Thin Film Polarizers are used for femtosecond
lasers.
PLEASE NOTE: The optimal working angle is AOI=72° (±2°).
We are offering 4 types of Broadband (Ultrafast) Thin film
polarizers. Polarizers work by transmitting p polarization and
reflecting s polarization.
TRANSMISSION POLARIZERS - have polarizing coatings
on both sides of polarizer. They can be optimized for highest
transmission of p polarization Tp > 94% or best contrast of
polarizations Tp:Ts>20:1.
REFLECTION POLARIZERS - have polarizing coating on the
input face while the output face is AR coated for both s and p
polarizations. They can be optimized for highest reflection of s
polarization Rs > 98% or best contrast of polarizations Rs:Rp>60:1.
Moreover AR coated side of polarizer can have wedge to
minimize ghosting. Standard thin film polarizers are designed
for optimum performance in the 750-850 nm or 980-1090 nm.
Design of custom wavelength range is also available.
Standard Specifications
Substrate Material
UVFS
Diameter tolerance
+0.0, -0.12 mm
Thickness tolerance
±0.2 mm
Clear aperture
>90%
Surface quality
20-10 scratch & dig
Surface flatness
λ/6 @ 632.8 nm
Angle of incidence
72°
Parallelism
<30 arcsec
Laser damage threshold
5 J/cm2 10 ns pulses @ 1064 nm typical
Transmission optimized Broadband (Ultrafast) Thin Film Polarizers
Wavelength, nm
Extinction ratio Tp/Ts
Transmission, %
Dimensions, mm
Ordering Code
750-850 (centered @ 800 nm) Contrast optimized
>20:1
Tp > 85% Ts < 4%
Ø25.4x3
14PUF-800-1-T2
20x60x2
14PUF-800-2-T2
50x160x5
14PUF-800-3-T2
750-850 (centered @ 800 nm) Tp optimized
>9:1
Tp > 94% Ts < 10%
Ø25.4x3
14PUF-800-1-T1
20x60x2
14PUF-800-2-T1
50x160x5
14PUF-800-3-T1
980-1090 (centered @ 1030 nm) Contrast optimized
>20:1
Tp > 85% Ts < 4%
Ø25.4x3
14PUF-1030-1-T2
20x60x2
14PUF-1030-2-T2
50x160x5
14PUF-1030-3-T2
980-1090 (centered @ 1030 nm) Tp optimized
>9:1
Tp > 94% Ts < 10%
Ø25.4x3
14PUF-1030-1-T1
20x60x2
14PUF-1030-2-T1
50x160x5
14PUF-1030-3-T1
Reflection optimized Broadband (Ultrafast) Thin Film Polarizers
