Meadowlark Optics
Dichroic Circular Polarizer
KEY FEATURES
- High extinction ratios
- Excellent surface quality
- Wide angular acceptance
- Low transmitted wavefront distortion
- Ultraviolet, visible, near infrared wavelengths
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$655.00 – $1,810.00
If component has options, configure first to add to cart or quote.
Item # | Mounting | Size | Wavelength | Lead Time | Price | Quantity | Add to cart |
|---|---|---|---|---|---|---|---|
CP-050-1550 | Unmounted | 0.500 in. (12.70 mm) | 1550 | 1 - 2 Days | $655.00 | ||
CPM-200-1064 | Mounted | 2.000 in. (50.80 mm) | 1064 | 1 - 2 Days | $1,810.00 | ||
CPM-200-1550 | Mounted | 2.000 in. (50.80 mm) | 1550 | 1 - 2 Days | $1,810.00 | ||
CPM-200-λ | Mounted | 2.000 in. (50.80 mm) | Specify Custom λ 400-1600 | 1 - 2 Days | $1,810.00 | ||
CP-050-0532 | Unmounted | 0.500 in. (12.70 mm) | 532 | 1 - 2 Days | $655.00 | ||
CP-050-0632.8 | Unmounted | 0.500 in. (12.70 mm) | 632.8 | 1 - 2 Days | $655.00 | ||
CP-050-0670 | Unmounted | 0.500 in. (12.70 mm) | 670 | 1 - 2 Days | $655.00 | ||
CP-050-0780 | Unmounted | 0.500 in. (12.70 mm) | 780 | 1 - 2 Days | $655.00 | ||
CP-050-0850 | Unmounted | 0.500 in. (12.70 mm) | 850 | 1 - 2 Days | $655.00 | ||
CP-050-1064 | Unmounted | 0.500 in. (12.70 mm) | 1064 | 1 - 2 Days | $655.00 | ||
CPM-200-0850 | Mounted | 2.000 in. (50.80 mm) | 850 | 1 - 2 Days | $1,810.00 | ||
CP-050-λ | Unmounted | 0.500 in. (12.70 mm) | Specify Custom λ 400-1600 | 1 - 2 Days | $655.00 | ||
CP-100-0532 | Unmounted | 1.000 in. (25.40 mm) | 532 | 1 - 2 Days | $968.00 | ||
CP-100-0632.8 | Unmounted | 1.000 in. (25.40 mm) | 632.8 | 1 - 2 Days | $968.00 | ||
CP-100-0670 | Unmounted | 1.000 in. (25.40 mm) | 670 | 1 - 2 Days | $968.00 | ||
CP-100-0780 | Unmounted | 1.000 in. (25.40 mm) | 780 | 1 - 2 Days | $968.00 | ||
CP-100-0850 | Unmounted | 1.000 in. (25.40 mm) | 850 | 1 - 2 Days | $968.00 | ||
CP-100-1064 | Unmounted | 1.000 in. (25.40 mm) | 1064 | 1 - 2 Days | $968.00 | ||
CP-100-1550 | Unmounted | 1.000 in. (25.40 mm) | 1550 | 1 - 2 Days | $968.00 | ||
CP-100-λ | Unmounted | 1.000 in. (25.40 mm) | Specify Custom λ 400-1600 | 1 - 2 Days | $968.00 |
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Circular polarizers transmit either left‐circular polarized light or right‐circular polarized light for an input beam of any polarization state. When circularly polarized light is reflected, it’s propagation direction reverses, changing left‐circular polarization to right circular polarization and vice‐versa. Therefore the same polarizer that produces circular polarization of the incident beam will block the return beam. Achievement of optical isolation using the circular polarizer requires that the reflection be specular and that no significant depolarization or polarization modification occur in any intervening medium between the reflector and optical isolator. We offer circular polarizers in two basic designs, each for use in air: Dichroic Polarizer / Zero‐Order Retarder or Beamsplitting Polarizer / Zero‐Order Retarder.
Meadowlark Optics Dichroic Circular Polarizers consist of a dichroic linear polarizer and true zero‐order quarterwave retarder. Precisely aligning the retarder fast axis at 45° to the linear polarization direction ensures optimum performance. True zero‐order retarders are used in the assembly of our Dichroic Circular Polarizers and tight retardance tolerances contribute to the final performance. Once aligned, both polarizer and retarder materials are laminated between optically flat substrates, providing a peak‐to‐valley transmitted wavefront distortion of less than λ/5. Anti‐reflection coated windows ensure surface reflection losses are minimized. Achievement of the desired polarization effect requires proper orientation of your Dichroic Circular Polarizer; be sure to position the indicator marking in the direction of beam propagation. Our standard Dichroic Circular Polarizers are designed for single-wavelength applications.
Substrate Material: N‐BK7
Polarizer Material: Dichroic Polymer
Retarder Material: Birefringent Polymer
Surface Quality: 40 –20 scratch‐dig
Reflectance (per surface): ≤ 0.5% Isolation > 99.8%
Storage Temperature: ‐20˚C to +50˚C
Operating Temperature: ‐20˚C to +50˚C
Laser Damage Threshold: 1 W/cm2, CW
Item # | Mounting | Dimensions | Wavelength(s) | AR Coating | Clear Aperture | TWD NOTE We measure TWD (Transmitted Wavefront Distortion) by Peak-to-Valley (P‐V @ 632.8 nm), not RMS, which results in tighter and more accurate specifications. | Beam Deviation | Thickness |
|---|---|---|---|---|---|---|---|---|
Unmounted | 0.500 in. (12.70 mm) | 1550 | 1200-1700 | 0.400 in. (10.16 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.130 in. (3.30 mm) | |
Mounted | 2.000 in. (50.80 mm) | 1064 | 900-1250 | 1.200 in. (30.50 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.500 in. (12.70 mm) | |
Mounted | 2.000 in. (50.80 mm) | 1550 | 1200-1700 | 1.200 in. (30.50 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.500 in. (12.70 mm) | |
Mounted | 2.000 in. (50.80 mm) | Specify Custom λ 400-1600 | Design Dependent | 1.200 in. (30.50 mm) | Design Dependent | Design Dependent | 0.500 in. (12.70 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 532 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 632.8 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 670 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 780 | 650-950 | 0.400 in. (10.16 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.130 in. (3.30 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 850 | 650-950 | 0.400 in. (10.16 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.130 in. (3.30 mm) | |
Unmounted | 0.500 in. (12.70 mm) | 1064 | 900-1250 | 0.400 in. (10.16 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.130 in. (3.30 mm) | |
Mounted | 2.000 in. (50.80 mm) | 850 | 650-950 | 1.200 in. (30.50 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.500 in. (12.70 mm) | |
Unmounted | 0.500 in. (12.70 mm) | Specify Custom λ 400-1600 | Design Dependent | 0.400 in. (10.16 mm) | Design Dependent | Design Dependent | 0.130 in. (3.30 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 532 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 632.8 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 670 | 400-700 | 0.400 in. (10.16 mm) ⋅ 0.700 in. (17.08 mm) ⋅ 0.800 in. (20.3 mm) ⋅ 1.200 in. (30.50 mm) | ≤ λ/2 ⋅ ≤ λ/5 ⋅ Design Dependent | ≤ 1 arc‐min ⋅ ≤ 2 arc-min ⋅ Design Dependent | 0.130 in. (3.30 mm) ⋅ 0.250 in. (6.35 mm) ⋅ 0.260 in. (6.60 mm) ⋅ 0.350 in. (8.89 mm) ⋅ 0.500 in. (12.70 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 780 | 650-950 | 0.800 in. (20.3 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.260 in. (6.60 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 850 | 650-950 | 0.800 in. (20.3 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.260 in. (6.60 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 1064 | 650-950 | 0.800 in. (20.3 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.260 in. (6.60 mm) | |
Unmounted | 1.000 in. (25.40 mm) | 1550 | 1200-1700 | 0.800 in. (20.3 mm) | ≤ λ/2 | ≤ 2 arc-min | 0.260 in. (6.60 mm) | |
Unmounted | 1.000 in. (25.40 mm) | Specify Custom λ 400-1600 | Design Dependent | 0.800 in. (20.3 mm) | Design Dependent | Design Dependent | 0.260 in. (6.60 mm) |
