Abstract

Low-cost adaptive optics is applied in lasers, scientific instrumentation, ultrafast sciences, and ophthalmology. These applications demand that the deformable mirrors used be simple, inexpensive, reliable, and efficient. We report a novel type of ultralow-cost deformable mirror with thermal actuators. The device has a response time of $\sim 5 \mathrm{s}$, an actuator stroke of $\sim 6 \mathit{\mu }\mathrm{m}$, and temporal stability of $\sim \lambda /10 \mathrm{rms}$ in the visible range and can be used for correction of rather large aberrations with slow-changing amplitude.

© 2002 Optical Society of America

Experimental investigation of the deformable mirror with bidirectional thermal actuators

Lei Huang, Xingkun Ma, Mali Gong, and Qi Bian
Opt. Express 23(13) 17520-17530 (2015)

Identification of a dynamical model of a thermally actuated deformable mirror

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