LCoS phase modulator technology
High-birefringence LCoS for fast, efficient wavelength selective switching.
High-birefringence liquid crystal
Our proprietary nematic LC has Δn = 0.28 at 1550 nm, versus about 0.2 for industry materials. It reaches the same phase depth with a <5 µm layer instead of ~8 µm. Because response time scales with thickness squared, the thinner cell is much faster, and it also cuts fringing fields for lower crosstalk and better large-angle efficiency.
Engineered device stack
We optimise the alignment layers for faster molecular response and add a precision dielectric mirror to raise reflectivity above 90%. Analog driving from the CMOS backplane gives continuous phase with very low jitter (±0.03 rad).
Standard LCoS vs SCOS LCoS
| Standard LCoS | SCOS LCoS (Gen 1) | |
|---|---|---|
| Liquid-crystal birefringence (Δn at 1550 nm) | ~0.2 | 0.28 |
| Liquid-crystal layer | ~8 µm | <5 µm |
| Response time | ~100 ms | <10 ms |
| Reflectivity | Lower | >90% (dielectric mirror) |
| Large-angle efficiency | Limited by fringing fields | Improved with thin cells |
LCoS roadmap
Gen 1 Production-ready
2K/4K analog LCoS for WSS: <10 ms, >2π over S+C+L, >90% reflectivity.
Gen 2 2027
2× faster, polarization-insensitive LCoS.
Gen 3 ~2028
Doubled efficiency; world’s first 8K LCoS for WSS and OCS.
Gen 4 ~2029
Ferroelectric LC optical modulators with microsecond-level switching.
Evaluate our modulators
Evaluation kits for the LCoS phase modulator and Analog FLCoS microdisplays are available now. Email us for datasheets and a quotation.