Tunable Liquid Crystal Phase Retarder LVVF117-T2
JCOPTIX variable LC phase retarders use high-quality empty LC cells and nematic material in standard one-inch housings, with connecting leads at both ends. External AC changes molecular tilt in milliseconds, rapidly adjusting retardance from ~30nm to λ/2 or λ without mechanical movement, for polarization/phase control. LC properties permit operation at 0-45℃. Three bands, 400-700 nm, 650-1100 nm, and 1050-1700 nm, cover visible/near-IR applications. The large-aperture one-inch version redesigns the cell/housing to increase clear aperture from standard Ø10 mm to Ø17 mm while retaining standard one-inch mounting, meeting larger-aperture needs. Two series offer half-wave ~30 nm–λ/2 or full-wave ~30 nm–λ. Both provide variable retardance, fast response, and broad temperature range within their bands; choose to requirements or customize specifications. Active LC products require AC, not DC, which accumulates charge and damages devices. Recommended drive is 1-2 kHz square wave, amplitude 0-±25 V, duty cycle 50%. Above 25 V may degrade or damage devices. Half-wave LC phase retarders. Models: LVVH-T2, LVVH-T3, LVVH-T4. Retardance ~30 nm–λ/2; Ø10 mm aperture; fast response; 0-45℃; bands 400-700 nm, 650-1100 nm, 1050-1700 nm. JCOPTIX half-wave versions offer three bands, 400-700 nm, 650-1100 nm, and 1050-1700 nm. External AC adjusts ~30 nm to λ/2 with high aperture-wide uniformity, fast response, and broad temperature range; see specifications/response-time tabs. Housings fit Ø1-inch optic mounts and mark the slow axis. Full-wave LC phase retarders. Models: LVVF-T2, LVVF-T3, LVVF-T4. Retardance ~30 nm–λ; Ø10 mm aperture; fast response; 0-45℃; bands 400-700 nm, 650-1100 nm, 1050-1700 nm. JCOPTIX full-wave versions offer 400-700 nm, 650-1100 nm, and 1050-1700 nm. External AC adjusts ~30 nm to λ with high uniformity over the aperture, fast response, and broad temperature range; see specifications/response-time tabs. Housings fit Ø1-inch mounts and mark the slow axis. One-inch large-aperture half-wave LC retarders. Models: LVVH117-T2, LVVH117-T3, LVVH117-T4. Retardance ~30 nm–λ/2; Ø17 mm aperture; fast response; 0-45℃; bands 400-700 nm, 650-1100 nm, 1050-1700 nm. JCOPTIX large-aperture half-wave versions offer 400-700 nm, 650-1100 nm, and 1050-1700 nm. External AC adjusts ~30 nm to λ/2 with high aperture-wide uniformity, fast response, and broad temperature range; see specifications/response-time tabs. Housings fit Ø1-inch smooth-bore mounts with set-screw fixation and mark the slow axis. One-inch large-aperture full-wave LC retarders. Models: LVVF117-T2, LVVF117-T3, LVVF117-T4. Retardance ~30 nm–λ; Ø17 mm aperture; fast response; 0-45℃; bands 400-700 nm, 650-1100 nm, 1050-1700 nm. JCOPTIX large-aperture full-wave versions offer 400-700 nm, 650-1100 nm, and 1050-1700 nm. External AC adjusts ~30 nm to λ with high aperture-wide uniformity, fast response, and broad temperature range; see specifications/response-time tabs. Housings fit Ø1-inch smooth-bore mounts with set-screw fixation and mark the slow axis.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating Wavelength | 400-700 nm |
| Response Time [Switching Between λ and λ/2, Rise/Fall; Test: 635 nm, 25℃] | 16.5 ms/10.6 ms @ 635 nm, 25 ℃ |
| Antireflection Coating | 350-700 nm |
| Response Time [Switching Between ~30 nm and λ/2, Rise/Fall; Test: 635 nm, 25℃] | 6.1 ms/0.3 ms @ 635 nm, 25 ℃ |
| Response Time [Switching Between ~30 nm and λ, Rise/Fall; Test: 635 nm, 25℃] | 21.6 ms/0.8352 ms @ 635 nm, 25 ℃ |
| Retardance [Lower Limit Approximately 30 nm; Upper Limit λ (No Conversion)] | ~30 nm-λ |
| Reflection R_avg [0° angle of incidence] | R_avg<0.5% (0° Angle of Incidence) |
| Operating Voltage [AC Drive; DC Must Not Be Used] | 0 - ± 25 V |
| Housing Dimensions | Ø25.4 × 14 mm, Compatible with Ø1-Inch Optical Element Mounts (Smooth-Bore Type, Secured with Set Screws) |
| Effective Clear Aperture | Ø17 mm |
| Retardance Uniformity | <λ/20 |
| Surface Finish | 40/20 |
| Surface Flatness [@633 nm] | λ/4 @ 633 nm |
| Element Material | Nematic Liquid Crystal / UV Fused Silica Glass |
| Operating Temperature | 0-45 ℃ |
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Datasheet
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