Laser Deformable Mirrors
We offer flexible modular adaptive optical systems with 19 to 109 control channels with mirror apertures 15 to 50mm. Deformable mirrors for laser applications can be coated with bare metals such as Aluminum, Silver, and Gold. We also manufacture deformable mirrors for high power laser applications. These mirrors feature 99.99% reflectivity for a chosen wavelength. We also manufacture deformable mirrors for ultrafast lasers, with 98% broadband metal/dielectric coatings for 550-1000nm, centered at 800nm. UV-enhanced can be coated with protected aluminum, optimized for 266 to 350nm range. Other types of coatings are available on request. OKO laser deformable mirrors have been tested inside the resonator of a solid-state laser, with optical loads of up to 40 kW.
The systems we offer use Piezoelectric Deformable Mirrors (PDM) and Micromachined Membrane Deformable Mirrors (MMDM). FrontSurfer wavefront control system is used as a wavefront sensor and AO feedback controller.
Deformable mirrors can be driven with 20 or 40-ch HV amplifier modules that can be combined to any number of channels. Our PC interface relies on inexpensive PC-based hardware (USB, Ethernet, and PCI) supported by major operation systems including all brands of Windows and Linux.
We also offer liquid crystal adaptive lenses for focus control.
This table provides a short summary of the specification of the most popular models of our deformable mirrors (for PDMs, the values are given for the maximum voltage of 400V).
| DM type | Stroke maximum/interactuator | Turbulence correction | Ophthalmic correction | Laser correction | Hysteresis |
|---|---|---|---|---|---|
| 15mm 37ch OKO MMDM | 9000 nm / 500 nm | Excellent up to 0.75 m aperture | Moderate | Good to moderate up to 100 W with a special coating | Negligible |
| 30mm 59ch and 79ch MMDM | 12000 nm / 600 nm | Excellent up to 1.5 m aperture | Moderate | Good to moderate up to 150 W with a special coating | Negligible |
| 40mm and 50 mm 79ch MMDM | 18000 nm / 700 nm | Excellent up to 1.5 m aperture | Moderate | Good to moderate up to 200 W with a special coating | Negligible |
| 30mm 19ch PDM | 8000 nm / 3500 nm | Excellent up to 1 m aperture | Good | Excellent up to 1 kW with a special coating | <10% |
| 30mm 37ch PDM | 8000 nm / 2000 nm | Excellent up to 2 m aperture | Excellent | Excellent up to 1 kW with a special coating | <10% |
| 50mm 37ch PDM | 8000 nm / 3000 nm | Good | Excellent | Excellent up to 10 kW with a special coating | <10% |
| 50mm 79 and 109ch PDM | 8000 nm / 2000 nm | Excellent up to 3 m aperture | Excellent | Excellent up to 1 kW with a special coating | <10% |