1. Phase shift (φ)
Phase changes of (a) π rad or (b) 2π rad are selectable by adjusting the LCOS drive parameters as shown in
the figure. The LCOS module shows a maximum phase shift of larger than 2π at 1550 nm. Users can choose π
rad mode or 2π rad phase shift mode by adjusting the drive parameters. Santec’s high resolution LCOS module
shows an excellent phase linearity without a LUT (look-up-table) option on the driver board. LUT is also
available as an option.
2. Response time (τ)
The LCOS has a fall-down time (90-10%), τd = 350 ms as shown in the figure.
3. Flicker noise
The LCOS module is optimized to have an excellent short-term Flicker stability of 0.03 dB (p-v) as shown in
the figure for fiber-optic applications.