Liquid Crystal Operating Principles
Meadowlark Optics DOWNLOAD PRINCIPLES Liquid Crystal Variable Retarders are solid
Ferroelectric Optical Shutter
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$3,570.00 – $4,345.00
Key Features
- Broadband performance
- Extremely fast switching speeds
- Silent, vibration‐free
- Low‐voltage operation
- OEM sizes and shapes
- No mechanical motion
Meadowlark Optics’ Achromatic Ferroelectric Polarization Rotator features high speed and exceptional polarization purity over broad wavelength ranges. FLC devices offer a significant performance advantage in optical shutter and rotator applications demanding the fastest optical response times available.
Since these devices are solid-state – undesirable mechanical motion, associated noise, and vibration problems are eliminated. Key features of our FLC devices include 100-microsecond switching speed, high contrast linearly polarized output, and operation over the widest wavelength range available.Common Specifications
Polarizer Material: Dichroic Polymer
Transmission:
≥ 30 % (typical – unpolarized light)
≥ 65 % (typical – polarized light)
(please inquire about higher transmission options)
Wavelength Range: 450 – 720 nm, custom up to 2 microns
Transmitted Wavefront Distortion:
λ/2 (P-V @ 633)
λ/8 (RMS @ 633)
Contrast Ratio: ≥ 200:1
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Item # | Size | Optimized Wavelength | Wavelength Range | Clear Aperture | Thickness | Lead Time | Price | Add to cart |
|---|---|---|---|---|---|---|---|---|
FCS-100-λ | 1.000 in. (25.40 mm) | Specify λ 450-720 in Checkout | 450-720 | 0.370 in. (9.4 mm) | 1.415 in. (35.94 mm) | 6-8 weeks | $3,570.00 | |
FCS-200-λ | 2.000 in. (50.80 mm) | Specify λ 450-720 in Checkout | 450-720 | 0.700 in. (17.8 mm) | 1.125 in. (28.58 mm) | 6-8 weeks | $4,345.00 |
Ferroelectric Optical Shutter
Shutter is comprised of the ferroelectric rotator with polarizers and includes specifications from rotator table.
See Details
ROTATOR SPECIFICATIONS | |
Retarder Material | Ferroelectric liquid crystal |
Substrate Material | Fused silica |
Wavelength Range | 405 – 850 nm custom ranges up to 2 microns |
Transmitted Wavefront Distortion | λ/2 (P-V @ 633) λ/8 (RMS @ 633) |
Surface Quality | 60 – 40 scratch-dig |
Beam Deviation | ≤ 5 arc min |
Outside Diameter (mounted) | 2.00 ± 0.005 in. |
Clear Aperture | 0.70 in. (17.8 mm) |
Response Time | ≤ 100 µs at room temp wavelength dependent |
Operating Temperature | 20 ˚C to 30 ˚C |
Storage Temperature | 0 ˚C to 60 ˚C |
Driver Requirements | ± 5 to 30 Volts, 50 % duty cycle |
|
SHUTTER SPECIFICATIONS (rotator with polarizers – includes specifications from above table) |
|
|
Polarizer Material |
Dichroic Polymer |
|
Transmission please inquire about |
≥ 30 % (typical – unpolarized light) ≥ 65 % (typical – polarized light) |
|
Wavelength Range |
450 – 720 nm custom ranges up to 2 microns |
|
Transmitted Wavefront Distortion |
λ/2 (P-V @ 633) λ/8 (RMS @ 633) |
|
Contrast Ratio |
≥ 200:1 |
CONTROLLER SPECIFICATIONS | |
Dimensions | 5.3 in. W x 5.3 in. L x 2.0 in. H |
Number of LC Channels | Two, running identical programs 180 degrees out of phase |
Output Waveform | Bipolar ± 15 V peak voltage, ± 10 V holding voltage |
Amplitude Resolution | 16-bit; 1 mV voltage resolution |
Internal Drive | 1 to 10,000 Hz, 50 % duty cycle, frequency controlled by front-panel 10-turn knob |
Ordering Information – Contact Us or Buy Online
ORDERING INFORMATION | ||||
Product Description | Diameter | Clear Aperture | Thickness | Part Number |
Rotator | 2.00 | 0.70 | 1.38 | FPA – 200 – λ |
Shutter | 1.00 | 0.37 (9.4 mm) | 1.42 (36.07 mm) | FCS – 100 – λ |
2.00 | 0.70 | 1.13 | FCS – 200 – λ | |
Controller | N/A | N/A | N/A | FC – 010 |
Please specify a wavelength when placing your order.
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Graphs & Figures
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Protected: The CHROMIS Polarimetric Modulator
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Protected: The CHROMIS Modulator Case Study
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The Power and Limitations of Polymers and Liquid Crystals for Polarization Control
The Power and Limitations of Polymers and Liquid Crystals for
