They are ideal for applications in which a small spot must be formed at some distance from the laser, or where the collimation range must be extended for illumination, or for alignment of distant objects. Today, zygo continues to maintain the leadership role in surface form metrology using laser interferometry. Beam expanders consist of transmissive configurations, with galilean or keplerian designs, and reflective configurations, which use a series of mirrors, similar to microscope designs. Laser interferometers surface form metrology manufacturer. Spherical mirrors for collimation laser beam products. The fixedmagnification, slidinglens beam expanders are offered with optics that have either narrowband or wideband ar coatings. We also offer variablemagnification beam expanders and reflective beam expanders.
They can grant you the appropriate end user permissions based on your information. Software that optical engineers and designers around the world choose for lens design, illumination, laser beam propagation, stray light, freeform optical design and many other applications. Laser optics beam expander service provider from kota. Lambda is a leading supplier of characterisation, measurement and analysis equipment, applied to signals from dc to light. Thorlabs galilean type beam expanders, which are available in both fixed and variablemagnification options, are offered for use in the uv, visible, near infrared, and midinfrared spectral ranges.
The tightly toleranced optical system downstream of the beam expander should. A factor of 100 is a little optomistic even assuming you had perfect optics you would inevitably need an exit lens or mirror 100x larger in diameter than the incoming beam. There is often no need to use aspheric mirrors such as off axis parabaloids for shallow. In these examples, the system does not make an image as its final output. Beam expanders increase or decrease the diameter of a laser beam. Our fixedmagnification, rotatinglens optical beam expander. Zemax delivers design software, training, and support services that set the highest standards for the optical and illumination industries. For low expansion ratio, the galilean telescope is most often employed due to simplicity, small package size and low cost. Unmounted stock optics provide the flexibility to integrate optics into your design without the mechanical constraints of an existing beam expander, while still.
Utlising zemax and 3d mechanical design software dioptika can design a beam expander solution to meet your exact requirements. Rannow b, omar ruiz a, matt deremer a, joseph leite a, armando martinez b, dustin guenther b alightpath technology, 2603 challenger tech ct. The following is not intended as a tutorial in how to use a lens design program. Beam expanders are used in applications such as laser scanning, interferometry, and remote sensing.
Generally prismatic beam expanders use several prisms and are known as multipleprism beam expanders. Usually the focal length of the dpss laser semiconductor laser is fixed. The optical beam expander is a galilean design and configured two znse lenses. Pdf application of the abcd ray matrix method for the design of a. Optical performance is optimized first with inhouse design and also with system test metrology. In general, laserbeam propagation can be approximated by assuming that the laser beam has an ideal gaussian intensity profile, which corresponds to the theoretical tem 00. Dec 01, 2017 beam expanders consist of transmissive configurations, with galilean or keplerian designs, and reflective configurations, which use a series of mirrors, similar to microscope designs. Dioptika has produced large output lens and mirror based beam expander systems for medical, safety, industrial and military applications. This will change the units of the metrics to be angular rather than distances. The basic elements of the tosa are the laser source, precision molded asphere, isolator, focusing lens and pm fiber.
I started to use zemax 10 years ago for laser application such as collimating lens, beam expander and scan lenses. These galilean design beam expanders provide an adjustable focus for collimation at varying wavelengths, and to control divergence correction and focusing. Professional heavyweights like zemax and codev are very expensive. Keplerian beam expander samples m approx lens 1 diameter mm focal length mm lens 2 diameter mm focal length mm max input beam diameter mm 2x kbx022 12. In th is paper we describe a transmitter optical sub assembly tosa based on a novel collimator design. They can be simple to align and adjust, and with careful optical design they can use inexpensive spherical mirrors and still give near diffraction limited results. Usually the focal length of the dpss lasersemiconductor laser is fixed. To create a beam expansion unit, it is important to know a few simple optical. Customize focusing system beam expander collimator for civillasers laser. We are able to provide expansion from 1 x to 50 x fixed magnification.
Beam expanders aperture optical sciences optical components. Available in various fixed magnification from 1x to 150 x with wavelength range from 255 nm to 1064nm wavelength. Variable xyuv beam expander for highpower laser beam shaping. If you need to be able to adjust the size of the spot, you can add this custom function. Oslo uses advanced software technologies to bring the power of windows into the realm of technical computing. Customize focusing system beam expander collimator for. The input lens presents a virtual beam focus at the output. Design of laser afocal zoom expander system nasaads. The beam expander 1x8x is part of the silverline tm highpower lens series and is designed for laser applications in wavelength ranges of 355 or 10301080 nanometers the optical system of the objective lens is designed in such a way that a diffractionlimited image quality is achieved across the entire expansion range. Dioptika beam expander, beam expanders, laser expander.
It is used for various applications such as laser scanning, interferometry, and remote sensing. Our fixedmagnification, rotatinglens optical beam expander optics have broadband ar coatings for either the vis or nir. Beam expanders consist of two lenses that are built according to the galileo principle and therefore do not generate an intermediate focus. Whereas the zemax calculated geometric rayoptics fiber coupling efficiency for the beam. How does opticsbuilder improve the workflow between optical engineers and cad users. In doing so, they enable different components of an optical system to adapt to one another. The ratio between input divergence angle to the hms diffusion angle, determines the ratio of the transition region to the wellhomogenized region of the output beam. The input of each beam expander has internal sm05 0. Study and design of beam expander with wide aperture. Product engineering teams can share complete design data and analyze performance in a.
Reflective beam expanders for collimating infrared lasers like co. Thousands of zygo interferometers are installed worldwide and relied upon daily to provide accurate production measurements of optical components and assemblies. Spherical mirrors used in laser beam expander for collimation our gold coated mirrors have high reflectivity in the visible and infra red so a visible laser can be used to safely align the beam expander. The appendix at the end of the paper shows how simple it is to construct an offtheshelf beam expander in zemax, along with analysis data. Ccl language supplied with oslo is more comparable to suns java or microsofts visual basic for applications than to the simple macro languages supplied with other optical design software. Beam expander is a optical component used to increaseexpand laser beam diameter. Beam expanders are optical devices that take a collimated beam of light and expand its size or, used in reverse, reduce its size in laser physics they are used either as intracavity or extracavity elements. According to the thirdorder aberration theory, considering the spherical aberration, sine difference and divergence angle, the reasonable analysis of optical path, zemax optical design software was used to design largediameter laser beam expander and analysis. Yag and yb doped fibre lasers operating near the 1. Beam expander is an optical component used in laser industry for expansion of beam.
May 01, 2015 laser beam expansion is a common optics tool that is required in many laboratory experiments. Laser interferometers from zygo were first introduced commercially 47 years ago. Opticstudio is the only tool you need sequential ray tracing. Novel fiber fused lens for advanced optical communication systems. The edges of the diffused beam are generally steep and well defined. Based on the principle of afocal zoom system, the laser collimation and beam expander system with a total length of less than 110mm, 6 pieces of spherical lens and a beam expander ratio of 10 is designed by using zemax software. Beam expanders are designed to work with cmount threaded cameras that have 4. Special optics low power laser beam expander specifications. Since beam expanders are afocal systems, make sure afocal image space is checked in the zemax lens data editor. Dioptika has produced large output lens and mirror based beam expander systems for medical, safety.
This unit has no markings or tags to indicate the manufacturer or model number bmi surplus, inc. Optical diffuser homogenizer application notes holo or. If you dont allow cookies, you may not be able to use certain features of the web site including but not limited to. Exercises lecture optical design with zemax part 4 4. The 4x beam expander is an expanding telescope that images the beam as it looks at 8mm from the end of the expander onto the ccd while enlarging the image 4x. Laser beam expansion is a common optics tool that is required in many laboratory experiments. The first lens has a focal length f 25 mm and the beam is expanded by a factor of 4. Unmounted stock optics provide the flexibility to integrate optics into your design without the mechanical constraints of an existing beam expander, while still providing rapid prototyping on the order of days.
Optical systems and modern optoelectronic instruments. Zemax design showing the illumination arm of confocal method for laser source definition in zemax holo or investigation and design of short range e optical thorlabs optical beam expanders expansion. The following is a zemax example for a 16x kieplerian beam expander using bk7. How to design your own beam expander using stock optics. The laser beam source associated with the suggested designs of the optical system is that of the tea co 2 laser working at 10. Novel fiber fused lens for advanced optical communication.
Luckily, building a beam expander from offtheshelf components is easily. All beam expanders feature aos worldclass quality aspheric optics and precision alignment mechanics. Uv beam expanders beam expanders laser accessories. There are few free or restricted versions optical design programs but. This is not the case for a gaussian beam, as it will diffract as propagates. Beam expanders for laser material processing jenoptik. Laser protection class is also maintained as continuous opening of the machine is no longer required. These galilean beam expanders incorporate the highly regarded tropel optical designs with improved adjustability and mounting. Beam expanders for co2 lasers lens systems laser components. Build your beam expander from aos standard mount products or ask us to produce a custom product to your requirements. These systems are suited for typical medium power levels of up to. They are adaptable for complex applications requiring increased power density at the focal point, beam guidance over long distance, dual wavelengths 1064nm and 532nm, high power laser.
According to the thirdorder aberration theory, considering the spherical aberration, sine difference and divergence angle, the reasonable analysis of optical path, zemax optical design software was used to design largediameter laser beam expander and analysis and optimize, and given the actual design data and results. Laser afocal zoom expander system due to the beam diameter variable, can be used. Most of design based on galileon method no internal focus. It is a businesstobusiness company that specializes in optics, mechanical mounts, optical softwaretrace pro, oslo, optiwave, pcgrate, lascad, tfcal and supply of different kind of holograms. Adjustable focus for collimation at various wavelengths diffraction limited design output aperture. It is a businesstobusiness company that specializes in optics, mechanical mounts, optical software trace pro, oslo, optiwave, pcgrate, lascad, tfcal and supply of different kind of holograms. This site is protected by trustwaves trusted commerce program. A beam expander takes a parralel beam of light and outputs another parallel beam. That is, a collimated beam will never change size and a diverging beam will retain the same divergence everywhere. Beam expanders have two main purposes in the laser industry. If youre designing any sort of optical equipment, such as camera lenses, microscopes, or telescopes, youll need a sequential ray tracing model.
Over the years, my team and i have designed optical system including eyepiece, objective, projection lenses, dvd pick up lens, fresnel lens, ccd camera lens, thermal imaging lens, reflective telescope and many other. With newports optical components, this video shows the process of building a galilean and a. Novel fiber fused lens for advanced optical communication systems a ndrew a. Motorized zoom beam expander, fully computerized controlled available from 18 x.
The laser beam source associated with the suggested designs of the optical system is that of the tea co2 laser working at 10. Sign in access to the myzemax customer portal is by invitation only. By providing your key serial number in this form, upon receipt of your information, your organizations license administrator will be notified of your request. In order to provide complete functionality, this web site needs your explicit consent to store browser cookies. 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. Laser beam expanders used in optics and photonics applications are available at edmund optics. Eo offers a wide variety of offtheshelf beam expanders, but occasionally it is easier for system designers to build their own beam expander by purchasing the optics separately. By providing your key serial number in this form, upon receipt of your information, your organizations license administrator will. Beam expander is commonly used to magnify the laser diameter to be focused back in smaller spot size. In view of the poor beam quality, the zemax optical design software is used to simulate the far field characteristics of the semiconductor laser beam, and the. Leading optical product design software for engineering. With newports optical components, this video shows the process of. Wavelength technology singapore ltd robert huang zemax. This variability helps to reduce machine set up times and provides flexibility to equipment for a wide range of jobs.
Afocal systems dont have an effective focal length and thus provide no net convergence or divergence of the incident light beam. Study and design of beam expander with wide aperture nasaads. The beamexpanders are of galilean design and use multispectral zinc sulphide for the optics which has an absorbption at 1. These galilean beam expanders have threaded input and output apertures, which allow additional lenses and filters to be installed easily along the optical axis of the beam expander. Laser beam expanders increase the diameter of a collimated input beam to a larger collimated output beam. If you have not yet been invited to myzemax, you can request access by submitting this form. There is no much usable free software in optical design. Co2 laser beam expander reflective beam expander suntec laser. Contemporary laser beam expanders are afocal systems developed from wellestablished optical telescope fundamentals.
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