This advancedlevel article demonstrates how to create a segmented mirrorbased adaptive optical system using the multiconfiguration capability of opticstudio. Overview of deformable mirror technologies for adaptive. Deformable mirrors designed by dynamic optics are ideal for high peak power and cw laser because they can be realized with high reflectivity and high damage threshold coating. Complete adaptive optics loop for laser with any deformable mirror to achieve the best correction until last parabola, userfriendly oasys software. A deformable membrane mirror is often used in closed loop adaptive optics systems to correct for aberrations and improve image quality. Alpao developed a new deformable mirror technology destined to be integrated into the majority of ophthalmic instruments. Us9804388b2 method for compensating optical aberrations. Results areshownforonespecificdeformablemirror,however,itisanticipatedthattheunderlying approach can be applied to other deformable mirror configurations. The new oasys software is compatible with any deformable mirror. Oofeliemultiphysics linked to zemax opticstudio open. Design of adaptive optics based systems by using mems deformable mirror models.
Use of deformable mirror technology is a way to reduce the mirror surface accuracy requirement by providing a means to compensate for the wavefront error associated with the telescope aberration, imperfect mirror surface, and segment phasing errors. Alpao manufactures adaptive optics components and systems. Piezoelectric deformable mirrors pdm manufactured by flexible optical b. Micromachined membrane deformable mirrors mmdm manufactured by flexible optical b. Adaptive optics loop management by phasics deformable. The utilization of membrane deformable mirrors has raised its importance in laser materials processing since they enable the generation of highly spatial and temporal dynamic intensity distributions for a wide field of applications. This advancedlevel article demonstrates how to create a segmented mirror based adaptive optical system using the multiconfiguration capability of opticstudio. How to write a userdefinedsurface of a deformable mirror in zemax. Boston micromachines deformable mirrors are advanced wavefront control devices that consist of a mirror membrane supported by an underlying actuator array. With only two different simulation codes zemax and the deformable mirror. Design of adaptive optics based systems by using mems.
Characterizing a mirror implies to have a suitable optical bench and 200mmdiameter lenses or a parabolic mirror. Souping up optics with design and simulation software. For the most demanding applications, alpao can provide you alpao core engine fast ace fast. Burgea athe university of arizona, college of optical sciences, tucson, arizona 85721, united states. Zemax is the only software that is both a lens design sequential optics software and an illumination non sequential software. Users guide october 31, 2016 1 introduction through userde ned surfaces uds zemax provides powerful mechanism for simulating of optical elements which are not covered by builtin surface types 2. For instance, dainty has developed a 9 channels bimorph deformable mirror, to generate focus, astigmatism, coma and spherical aberrations 16, and freeman presents a 3actuators. We support the most versatile ao platform offering high performance wavefront sensors and compatible with the largest range of deformable mirrors, with diameters from 7 mm to more than 400 mm, with frequencies from 10 hz to more than 1 khz, metallic and dielectric coatings. Adaptive optics with deformable mirrorphasics sid4swir. A deformable mirror dm is an important component of an adaptive. Deformable mirrors alpao deformable mirrors are based on continuous reflective surface motioned by magnetic actuators. Deformable mirrors are used in combination with wavefront sensors and realtime control systems in adaptive optics.
In certain applications, the correction of only one type of aberration is sufficient, the calibration procedure of the mirror can be simplified and the control scheme can be reduced to a fast feed forward system. Impact of large field angles on the requirements for. Userde ned surface dll for simulation of micromachined. Zemaxr \userde ned surface dll for simulation of micromachined membrane deformable mirrors mmdm manufactured by flexible optical b. The simulations were carried out using zemaxtm 15, an optical design software. A multidisciplinary design and optimization methodology for. Deformable mirrors, wavefront sensors and advanced wavefront analysis software axiom optics offers various adaptive optics solutions for metrology. While combining data from finite element analyses with raytracing tools typically. Simulation of oko dms in zemax oko introduces zemax dlls to facilitate realistic simulation of optical systems that include deformable mirrors produced by oko. Opticstudio is its flagship product and a commonly used optical design program for microsoft windows. It includes very rapidly deformable mirrors with large strokes, wavefront sensors, real time computers and complete adaptive optics loops.
Some works present deformable mirrors with a limited number of actuators but none have pushed the limits to a single actuator. Deformable mirrors for high peak power and cw laser. I have a mems deformable mirror that i want to implement in. Working together, the optics and deformable mirror enable unique highresolution imaging capabilities over a large field of view c. I have the influence function for each actuator poke to 1um. To interact with the optical design software zemax opticstudio. To take full advantage of these devices for beam shaping, the huge amount of degrees of freedom has to be considered and optimized already within the early stage. Userde ned surface dll for simulation of piezoelectric. Working together, the optics and deformable mirror enable unique. Microelectromechanical systems 4096actuator mems deformable mirror. The aberrations of the focusing lens were modeled in the zemax, see fig.
Deformable mirrors correct optical distortions originating technologynasa contribution i n march of 2009, the kepler spacecraft was launched to explore the structure and diversity of planetary systems outside of our own solar system, with a special emphasis on the detection of earthsized planets. Deformable mirrors dm are mirrors whose surface can be deformed, in order to achieve wavefront control and correction of optical aberrations. Zemax optical design software such that the deformable mirror actuation voltages can be optimized along with all other parameters in the full optical system. Adaptive optics makes also possible to shift the depth of focus, while maintaining a constant distance between the objective and the observed object to do 3d microscopy through the use of sections. They feature large strokes, high dynamic motion and an excellent optical quality to meet and exceed your requirments for fast and accurate wavefront correction. It calculates the voltages to be applied to the actuators to achieve the best possible compensation for a specified wavefront aberration, defined as a combination of zernike terms. I have a mems deformable mirror that i want to implement in zemax. Spherical aberration correction system using an adaptive. With ace, it is possible to close the adaptive optics loop up to 1200hz using alpaos deformable mirrors and wavefront sensors. In 2006 they found a new use in femtosecond pulse shaping the shape of a dm can be controlled with a speed that is appropriate for. Deformable mirrors adaptive optics deformable mirrors. Method for compensating aberrations of an active optical system by a deformable mirror, comprising. A finite element analysis code was used to simulate the deformable mirror b.
It is used for the design and analysis of both imaging and illumination systems. The layout shown in figure1includes a telescope assembly, the deformable mirror, a pupil relay and two imaging cameras. For this reason, the oofeliemultiphysics solver automatically links to the wellknown optical design software zemax opticstudio. How to write a userdefinedsurface of a deformable mirror. I have the influence function for each actuator poke to 1um from the shack hartmann. Each actuator in the array can be individually deflected by electrostatic actuation to achieve the desired pattern of deformation. Spherical aberration correction in aplanatic solid. Oasys software module is designed for adaptive optics loop management. Integrated optical design for highly dynamic laser beam. By harnessing the power of opticstudio, opticsbuilder, and opticsviewer, optical, mechanical, and manufacturing engineers can speak the same language across the optical product development process. Alpaos very largestroke mirrors permit great depth of focus while correcting large spherical aberrations. The design and optimization with zemax software, and. Opticstudio is the leading software used by optical engineers throughout the design phase.
Optical metrology of a large deformable aspherical mirror. Monomorph mirrors in active optics for next generation of. Oko introduces zemax dlls to facilitate realistic simulation of optical systems that include deformable mirrors produced by oko. To compare the results from the zemax simulations, we carried out. In a variety of optical applications, optical designs have to be combined with thermomechanical matters. Our piezoelectric deformable mirrors offer hysteresis compensation when used with thorlabs control software, while the memsbased deformable mirrors are inherently hysteresisfree. It controls both the wavefront sensor and the deformable optics. Pdf design of adaptive optics based systems by using.
Optical metrology of a large deformable aspherical mirror using software configurable optical test system run huang,a, peng su, atodd horne, guido brusa,b and jim h. The hysteresis compensation for the piezoelectric deformable mirrors can be turned off when operating the mirror with openloop control, which can increase the speed. Edmund scientists used all of this softwarecode v, zemax, and. All content is posted anonymously by employees working at zemax. Mirror actively deformed and regulated for applications in.
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