AQWP6 Achromatic Quarter Waveplate

Active Range: 700 nm – 1600 nm | Broadband NIR QWP | ±0.01 waves | True Zero Order | Doc: BVO.AQWP6.PB.202401

700–1600 nm λ/4 Achromatic ±0.01 waves NIR Broadband Off-Shelf $595

AQWP6 is BVO's broadband NIR achromatic quarter waveplate covering 700–1600 nm. Converts incoming linearly polarized NIR light to circular polarization across the full NIR band — left-hand or right-hand depending on orientation. True zero order multi-layer fused polymer construction with visible wavelength overlap capability. Available off-shelf as a 25.4mm OD glass-laminated component or as free-standing film for OEM integration.

700–1600 nm

Active Range

±0.01 waves

Retardance Tolerance

99%

Internal Transmittance

AQWP6 — Retardance vs Wavelength

Active Range: 700–1600 nm | Target: 0.2500 waves (λ/4) | Tolerance: ±0.01 waves | New AQWP6 data 2023

Key Features

Broadband achromatic λ/4 retardance 700–1600 nm — single element covers full NIR band

Visible wavelength overlap — usable performance extends into the visible band

True zero order multi-layer fused polymer — no adhesive, no dispersion of single-layer films

±0.01 waves retardance tolerance across the full active range

99% internal transmittance

Large clear aperture — 25.4mm OD standard (20mm clear), to 100mm OD custom

Wide acceptance angle ±15°

BBAR anti-reflection coated — 700–1100 nm R ≤ 0.65% per surface (component)

Free-standing film (FSA) available — 0.55mm thick, PSA conversion, OEM slicing and die cutting

Environmentally stable — fused polymer, no adhesive, passes 60°C/90%RH 1000h and thermal cycling

Off-shelf 25.4mm OD at $595 each; custom OEM sizes available

Standard Component Specifications (Glass Laminated)

Parameter

Value

Retardance

λ/4, achromatic 700–1600 nm

Retardance Tolerance

±0.01 waves

Birefringent Material

Multi-layer fused polymer, sandwiched between BK-7 substrates

Substrates

BK-7, grade-A, fine annealed

Surface Quality

40-20 Scratch-Dig

AR Coating

BBAR 700–1100 nm, R ≤ 0.65% per surface average

Outer Diameter

25.4mm OD ± 0.20mm

Clear Aperture

80% (20mm)

Thickness

6.55mm ± 0.20mm

Acceptance Angle

±15 degrees

Optic Axis Stability

≤2 degrees

Wavefront Distortion

λ/4 at 632nm

Beam Deviation

2 arc minutes

Temperature Range

−20°C to 60°C

Damage Threshold

500 W/cm² CW | 0.3 J/cm² @ 10ns, 523nm

Internal Transmittance

99%

Off-Shelf Price

$595 each, 25.4mm OD

Free Standing Film (FSA) Specifications

Parameter

Value

Birefringent Material

Fused polymers — no adhesive

Film Thickness

0.55mm ± 0.05mm

Surface Quality

60-40 Scratch-Dig

Index of Refraction

1.58

Optional AR Coating

R ≤ 0.75% per surface average, 650–1100 nm

PSA Conversion

Available

Film Cut Tolerances

±50 microns

Environmental

60°C at 90% RH for 1000h | 80°C dry 1000h | −30°C dry 1000h | −20°C to 75°C thermal cycling ×100

Custom Cutting

OEM wafer slicing, .dxf routing/cutting available

Maximum Dimension

Contact BVO for quote

Applications

NIR Circular PolarizationConverts linearly polarized NIR light to circular polarization across 700–1600 nm. Covers the full InGaAs and silicon detector NIR response band.

NIR Imaging Optical IsolationPrevents back-reflections in NIR camera and imaging systems using circular polarization isolation across the full NIR band in a single element.

NIR Laser Cavity IsolationBroadband NIR quarter waveplate for multi-wavelength NIR laser systems, fiber laser isolation, and telecom laser applications.

Fiber Optic SystemsNIR circular polarization for fiber optic components, isolators, and polarization management in telecom and datacom systems.

NIR Ellipsometry & PolarimetryPrecise λ/4 NIR retardance for Stokes polarimetry and ellipsometry across 700–1600 nm. ±0.01 waves tolerance supports precision NIR measurement.

LIDAR & Range FindingNIR quarter waveplate for LIDAR polarization systems operating at 905nm, 1064nm, and 1550nm — all covered in one component.

NIR Machine VisionCircular polarized NIR illumination for machine vision and inspection systems — reduces specular glare across the 700–1600 nm NIR band.

SWIR ImagingExtends into SWIR band — covers InGaAs camera response (900–1700nm) for SWIR circular polarization applications.

AQWP6 Achromatic Quarter Waveplate

Key Features

Standard Component Specifications (Glass Laminated)

Free Standing Film (FSA) Specifications

Applications

Contact Bolder Vision Optik