Femtoline Thin Film Laser Polarizers (Round)

• Rs/Tp>99.5/95.0% for Standard Thin Film Laser Polarizers • Rs/Tp>99.5/99.0% for High Transmission Thin Film Laser Polarizers • Tp>98%, Tₛ<0.1% for Thin Film Polarizers with High Extinction Ratio • >200:1… Read more →

From $256 Configure & order →

Volume discount

5–9 units −10%
10+ units −15%

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Surface 1, Wavelength 1

Wavelength 515 nm - 820 nm · 2 values Any nm

2 catalog variants — refine the spec to narrow it down.

SKU	Shape Type	Diameter	Material	Surface Shape	Coating	Wavelength	Reflectivity, %	AOI (angle of incidence)	Polarization
420-1244HE	Round	25.4 mm	UVFS	Plano	Rs/Tp	515 nm - 515 nm	99.8 % - 100 %	56 deg 0 min 0 sec - 56 deg 0 min 0 sec	s/p	Out of stock Ships in: 62–65 calendar days $256
420-1266HE	Round	25.4 mm	UVFS	Plano	Rs/Tp	780 nm - 820 nm	99.8 % - 100 %	56 deg 0 min 0 sec - 56 deg 0 min 0 sec	s/p	42 in stock Ships in: 2–5 calendar days $380

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Specifications

Shape Type	Round
Diameter	25.4 mm
Diameter Upper Tolerance	0 mm
Diameter Lower Tolerance	-0.12 mm
Center Thickness	3 mm
Center Thickness Upper Tolerance	0.2 mm
Center Thickness Lower Tolerance	-0.2 mm
Material Type	FS
Material	UVFS
Parallelism, angle	0 deg 0 min 0 sec - 0 deg 0 min 30 sec

Surface 1

Surface Shape	Plano
Surface quality, grind or polish	Polished
Power and Irregularity, fringes @633 nm	0(0.2)
Clear Aperture, %	85 % - 100 %

Surface 1, Wavelength 1

Coating	Rs/Tp
Reflectivity, %	99.8 % - 100 %
Transmission, %	98 % - 100 %
AOI (angle of incidence)	56 deg 0 min 0 sec - 56 deg 0 min 0 sec
AOI Lower Tolerance	-2 deg 0 min 0 sec
AOI Upper Tolerance	2 deg 0 min 0 sec
Polarization	s/p

Surface 2

Surface Shape	Plano
Surface quality, grind or polish	Polished
Power and Irregularity, fringes @633 nm	0(0.2)

Description

Rs/Tp>99.5/95.0% for Standard Thin Film Laser Polarizers
Rs/Tp>99.5/99.0% for High Transmission Thin Film Laser Polarizers
Tp>98%, Tₛ<0.1% for Thin Film Polarizers with High Extinction Ratio
>200:1 exctinction ratio for standard and high transmission polarizers
>1000:1 exctinction ratio for polarizers with high extinction ratio (HE series)

Thin Film Polarizers seperate s- and p-polarization components. Thin Film Polarizers can be used as an alternative to Glan laser polarizing prisms or cube polarizing beamsplitters due to the high damage threshold reaching 100 mJ/cm2, at 800 nm, 50 fsec.

Thin Film Polarizers are used in high energy lasers. They can be used for Yb:KGW/KYW or Ti:Sapphire laser fundamental wavelength and its harmonics or intracavity Q-switch hold-off polarizers. The most efficient way to use thin film laser polarizers is at Brewster angle - 56° ±2 ° with minimal losses. Typical horizontal polarization ratio Tp/Ts is 200:1.