Meadowlark Optics’ Achromatic Ferroelectric Polarization Rotator features highspeed 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.

Key Features

Since these devices are solid state – undesirable mechanical motion, associated•••Broadband performancenoise, and vibration problems are eliminated. Key features of our FLC devices

Extremely fast switching speeds

include 100 microsecond switching speed, high contrast linearly polarized output,and operation over the widest wavelength range available.

Silent, vibration‐free
Low‐voltage operation

Typical applications of the FLC Achromatic Rotator include single camera 3D video

OEM sizes and shapes

capture, broadband phase modulators, beam steering, and polarimetry. Achromatic

No mechanical motion

rotators are not limited to visible spectrum; we can design and build them in theLiquid Crystal Suitenear infrared as well.

Contrast Ratio

High Polarization Purity over a Broad Wavelength Range

Wavelength (nm)Typical FLC Switching Speed•••Variable Retarders
Liquid Crystal Variable Retarder
UV Variable Retarder
MWIR Variable Retarder
OEM LCVRRotators
Achromatic High Speed Rotator
Binary Rotator
Polarization Rotator
Shutters / Attenuators
Achromatic High Speed ShutterHigh Contrast Shutter
Variable Attenuator
Controllers
Analog Controller
FLC Controller
LC Digital Interface Controller
Temperature Controller
Two Channel High Voltage ControllerTime (microseconds)

DS03.19

POLARIZERS • SPATIAL LIGHT MODULATORS • WAVEPLATES • LIQUID CRYSTAL DEVICES • OTHER CAPABILITIESAchromatic High Speed
Polarization Rotators & Shutters

OTHER CAPABILITIES • LIQUID CRYSTAL DEVICES • WAVEPLATES • MODULATORS SPATIAL LIGHT • POLARIZERSROTATOR SPECIFICATIONS
Retarder Material

Ferroelectric liquid crystal

Substrate Material

Fused silica

Wavelength Range

405 – 850 nm

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 (10‐90% & 90‐10%)≤ 100 µs at room temp

Operating Temperature

20˚C to 30˚C

Storage Temperature

0˚C to 60˚C

Driver Requirements± 5 to 30 Volts,
50% duty cycle

custom ranges up to 2 microns

please inquire about custom sizes

wavelength dependent

SHUTTER SPECIFICATIONSCONTROLLER SPECIFICATIONS(rotator with polarizers – includes specifications from above table)
Polarizer Material

Dichroic Polymer

Dimensions

5.3 in. W x 5.3 in. L x 2.0 in. H
13.5 cm W x 13.5 cm L x 5.1 cm HTransmission≥ 30% (typical ‐ unpolarized light)≥ 65% (typical ‐ polarized light)

Number of LC
ChannelsTwo, running identical programs
180 degrees out of phase

Wavelength Range

450‐720 nm

Output Waveform

Bipolar ± 15V peak voltage, ± 10V
holding voltage

Transmitted Wavefront
Distortion

λ/2 (P‐V @ 633)
λ/8 (RMS @ 633)

Contrast Ratio≥ 200:1

please inquire about higher
transmission options

custom ranges up to 2 microns

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
Product Description
Rotator
Shutter
Controller

Diameterin. (mm)

Clear Aperturein. (mm)Thicknessin. (mm)Part Number

2.00 (50.8 mm)

0.70 (17.78 mm)

1.38 (19.05 mm)

FPA – 200 – λ

1.00 (25.4 mm)

0.37 (9.4 mm)

1.42 (36.07 mm)

FCS – 100 – λ

2.00 (50.8 mm)

0.70 (17.78 mm)

1.13 (28.7 mm)

FCS – 200 – λ

N/A

N/A

N/A

FC – 010

Please specify a wavelength when placing your order.

www.phototechnica.co.jp〒336-0017 埼玉県さいたま市南区南浦和 1-2-17

TEL:048-871-0067 FAX:048-871-0068
e-mail:voc@phototechnica.co.jp+1‐303‐833‐4333 (T)+1‐303‐833‐4335 (F)sales@meadowlark.comwww.meadowlark.com