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3461 Topics
Allie
Zemax Staff
AllieZemax Staff
posted in People & Pointers
Zemax Consultants List

Hi everyone! Are you looking for a consultant to aid in your design work? Or are you a consultant who wants to get your name out there? This thread will serve as a list of Zemax Consultants. It is a Google-indexed replacement for the Zemax Consultants webpage, which was removed. Thanks to @Donna.Waters for getting this started :). If you're a consultant, please reply with your company information. Include your website and a little blurb about the kind of consulting work you do. Additionally, consider updating your Profile with a signature and some information about your business so other users can see your credentials as you reply to posts. If you are looking for a consultant, please reach out to the consultants via their website or via a private message. Do not reply to this thread requesting services. Please note: the consultants on this list are self-reporting, and are not endorsed by Ansys Zemax. We reserve the right to remove consultants from this list if they fail to meet the sta

8624
LOD
Allie
Zemax Staff
AllieZemax Staff
posted in Licensing and Installation
License and Installation Directory

This forum category is a space for you to find help with any of your licensing or activation questions. It is monitored by our regional licensing specialists. For your convenience, you can find some self-help guides here: License & Installation In the event you cannot find what you're looking for there, post your question! Our staff or your fellow community members will be able to help.

3510
Allie
Zemax Staff
Allie
Zemax Staff
AllieZemax Staff
published in User News & Alerts
New here?F.A.Q.

Welcome to the Zemax Community! This is a gathering place for all things optics. Within this community, you will be able to find out more about your Zemax products. You will also be able to chat with other industry professionals about the latest trends. Use this space to ask questions, help others, and learn! Now that you're here, there are a few steps you should take to make the most of your experience! 新人入门？(Chinese Version) はじめてですか？ (Japanese Version) First Steps: 1. Subscribe to User News & Alerts When you subscribe, you will be kept up-to-date on news that affects Zemax’s user community, like new release functionalities, opportunities to learn and network, or critical issues. 2. Configure your profile Log into the platform and navigate to your profile settings here . Each of your profile elements (except your last name) will be visible to all community members. We encourage you to be descriptive: tell others about your areas of expertise and professional interests. 3. Introduce yo

5670
Allie
Zemax Staff
O
OliverInfrared
asked in Got a question?
Quantifying Back Reflections in Zemax for Optical Fiber Endoscope

Hi, This is Oliver. I’m currently working on an optical fiber endoscope project, where minimizing back reflections is critical for our application in optical coherence tomography (OCT). In particular, I’m looking to quantify the back reflections from specific lens surfaces—such as the ball lens-air interface highlighted in the attached figure. The system involves a single-mode fiber launching light through a segment of coreless fiber and a ball lens. The majority of the back reflections appear to originate from the ball lens-air interface. My goal is to use Zemax to estimate the amount of power reflected back into the single-mode fiber. For example, if the input power is 10 mW, is it possible to calculate the power reflected back toward the source in Zemax? Ultimately, I plan to optimize the material and geometry of the ball lens to minimize these reflections. I’ve attached the Zemax file for your reference, and I would appreciate any guidance or suggestions on how best to approach thi

541
Rishab
D
DusanVisible
asked in Got a question?
OpticStudio 23.2.1 "freezes" while saving file

Hello Using Interference Example 1- A Simple Interferometer from SAMPLES folder I created a simple setup to test a right-angle prism with pyramidal error. At the end I wanted to save the file but OS just froze and didn’t react any more - even after a longer time. I ended the program in Task Manager and opened it again without problem. The file to-be-saved before seemed to have saved well and it was possible to continue the work. I tried to save again and OS froze again. And so many times… In my last trial I wanted to check Preferences and after some time in Preferences OS froze again. All other sequential and non-sequential files that I have behave normally. What could be the reason. Attached is the screenshot of the file. Thanks, Dusan

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Bharat
BharatSingle Emitter
asked in People & Pointers
Converting phase from a DOE to a refractive lens

250
Bharat
turner12345
turner12345Single Emitter
asked in Got a question?
ANSY logo contaminating graphics windows

How do I turn this off? We pay to use Zemax, not to be an advertiser for Ansys.

802
Sean Turner
Ultraviolet
S
sathyaInfrared
asked in Got a question?
How to design optical fiber in Zemax student version?

I am using zemax student version. Can anyone tell me how to design optical fiber?

331
C
Fully Spectral
Z
ZurMonochrome
asked in Got a question?
NSQ lens edge thickness

Is there an operand for lens edge thickness in non seq mode? (for standard lens object)

411
David.Nguyen
Luminary
nalewis
nalewisSingle Emitter
asked in Got a question?
PSF with Gaussian input

Hi, I am new to using Zemax I am trying to use the PSF functionality to simulate how the PSF/focused beam size changes with input beam size. Since the imaging is diffraction-limited, I assume I can only use PSF functionality to determine the output beam size. How do I change the input beam size/will this change the PSF result? Can I set the input beam to be Gaussian? This is what we have in our real system.

531
Rishab
S
simon.schroeder_01Infrared
asked in Got a question?
EFLY/EFLX operands considering Zernike coefficients

Hello, so far I was under the impression that the EFLY/EFLX operands ignore all Zernike coefficients (e.g. of Biconic Zernike surface) and purely consider the radii of curvature . Now I discovered that the coefficient “Zernike 4” and its effect on the curvature is considered for EFL calculation. Although the Zernike 4 polynomial is proportional to r² and thus directly changes the effective radius of curvature, it is by far the not the only Zernike polynomial effecting the EFL in X- and Y-direction (e.g. Zernikes 5, 6, 11, 12, 13, ...). Is this change in EFL calculation a bug or intented? What was the OpticStudio release this change in ELFY/EFLX was introduced with? I could not find any mentions in the release notes. Best regards, Simon

481
Jeff.Wilde
Luminary
Rishab
RishabSingle Emitter
asked in Got a question?
Surface Deformation plot not analogous to the wavefront error

Hi, I am trying to see the wavefront error due to surface deformations and also extract the zernike values with the help of STAR nodule in Zemax. The FEA data from NX is imported to STAR which I am fitting onto a flat mirror surface. After data fitting there is a difference in the wavefront map profile and the actual deformed surface profile. I am unable to understand what the cause may be. Any help is appreciated. Regards, Rishab

260
Rishab
mlunin
mluninMonochrome
asked in Got a question?
GRIN Lens Design Tolerancing

I have an optical design with GRIN lenses and want to tolerance it. How does tolerancing work with GRIN systems - is there anything that changes at all? For example - In which direction does doing a thickness tolerance remove/add GRIN material from? For example, if the part is 0.1 mm thicker, does it add GRIN based on the definition of n(x,y,z) and the gradient? What about when the part is toleranced to be thinner? Which section of GRIN material is removed? How does tolerancing index work? Does it apply a random offset to each part? Constant offset? Similarly, does the GRIN profile also get tilted when doing a tilt tolerance? Note - this is using a custom GRIN user defined *.dll.

160
mlunin
T
Tali.mutatInfrared
asked in Got a question?
"Y only" / "X only" Type in Geomerical Encireled Energy calculation

Zemax Team Hi, Please explain how Zemax calculates the amount of Geometrical Energy for “Y - only” / “X - only” Type and what does it mean? Is it a fraction from the “Encircled Geometrical Energy” ? Thanks in Advance, Tali M.

210
T
SUPRAVAT MONDAL
SUPRAVAT MONDAL
asked in Got a question?
Circular Ring like patches in image simulation

Hello, I am facing an issue in image simulation for my designed IR system which is showing a circular ring like patch. I am not sure whether this is an image simulation issue or there is some actual error in the system which is being reflected in the image simulation. The design also includes binary surfaces for chromatic aberration correction. Attached is the image simulation result. Any help is highly appreciated. Regards, Supravat.

1347
Jeff.Wilde
Luminary
J
John.DommInfrared
asked in Got a question?
what is the operand for the chief ray angular coordinates for x and y

hi, I would like to know how to report the angular coordinates of the chief ray relative to the vertex of a surface. specifically, i would like to report (or know the operand) of the angular X and Y coordinates ( the X and Y in the upper left of the image below).

3293
Erkang Wang
A
Ultraviolet
AsukuUltraviolet
asked in Got a question?
How to hide/unhide the GUI ribbon in OpticStudio?

Hello. Is there a setting in Ansys OS 25 release to set hide/unhide the GUI Ribbon? I prefer to use maximum screen area if possible. The only way I think is to double-click the tab to hide/unhide. -Asuku

452
A
Ultraviolet
A
Ultraviolet
AsukuUltraviolet
asked in Got a question?
How to model a Angle Cleaved (APC) fiber showing output ray

Hello. I am trying to model a Angle Cleaved fiber source that emits beam. I would like to show the exit beam is offset at 4° from the optical fiber mechanical axis. How can I model this in SEQ mode? Essentially, I want to model something like shown below in Zemax Sequential mode. PS: I am referencing this KB article to model a Angle Cleaved fiber on the receiving side.

561
Jeff.Wilde
Luminary
theo.sieg-letessier
theo.sieg-letessierSingle Emitter
asked in Got a question?
Ideal thick lens, Optic studio sequential mode

Hi all, I am studying the limits of a metrology instrument, and specially the FT lens contribution to systematic errors. For this purpose, I simplify my system by a source, a thick lens, and a detector. I study this configuration with 3 different ways: Using jones calculus. Using Zemax optic studio sequential mode piloted with Python loops. I simulate the exact same configuration as studied with jones calculus. I have 2 models: One using a ‘paraxial’ surface type with non-null thickness. The other one using a standard surface. However, I obtain 3 different results, and I lack the experience to identify the difference in assumptions or hypothesis between the 3 cases. Could someone help me or point me in the right direction? A lot of thanks for your time, Théo Sieg-Letessier.

280
theo.sieg-letessier
jsung
Ultraviolet
jsungUltraviolet
asked in Got a question?
How export sequential lenses with rays to CAD file

Not sure if this topic was discussed before, but I haven’t found it yet. Sometimes I need to export lenses to CAD file (STEP or X_T) including ray bundles for each object field. What is proper setting for having rays that can be viewed in program like Solidworks? For example I tried the setting below, but this STEP file didn’t display field cone rays in SW. Regards JS

1016
jsung
Ultraviolet
M
millyro1993Single Emitter
asked in Got a question?
Focusing with two aspheric lenses

Hello, I want to focus the beam with two aspheric lenses. I have tried to optimize the system with the merit function, but I still have a large RWS wavefront error that says I can't get a tough focus. Could you please give me some advice on how to further minimize my focus. I can't change the parameters of the lenses (RoC, thickness of the lens, because these lenses already exist), only the distances between the lenses and between lens and mirror. All information about the system and results can be found bellow. Thank you!

522
M
A
Ultraviolet
AsukuUltraviolet
asked in Got a question?
How do I model a angled single mode source array in sequential mode?

I would like to model a fiber source array with a X° facet angle in sequential model - I would like to control the number of rows and columns by defining a pitch size in both axis. An example or article that shows how this can be achieved will be helpful? PS: I see that this is possible w/ a non-sequential setup (How to create an array of sources – Knowledgebase) but is there a way to do this in sequential?

742
A
Ultraviolet
pricecj
pricecjInfrared
asked in Got a question?
Beam Profile Analysis using Physical Optics Propagation

I would like to use POP to measure the size and profile of a beam as it approaches its focal position, however, I am struggling to configure this correctly. The model is a recreation of an experiment I have setup in the lab as I would like to compare the results. The input beam has a very low divergence value (~0.04 mrads, NA 0.000035), and a single achromat lens is used to focus the beam. The position of the lens relative to the source has been set to give a diameter of ~ 2 mm at this surface. Using the tutorial https://support.zemax.com/hc/en-us/articles/1500005488601-Using-Physical-Optics-Propagation-POP-Part-1-Inspecting-the-beams I cofnigured the aperture type and POP seetings to create the approprite beam definiton and launch conditions. I then placed various dummy surfaces throughout the system to assess the beam waist. The problem arises when the beam reaches the lens surface (surface 3). No matter how much I change the size of the sampling grids of the previous surfaces (1 and

422
pricecj
Michael.Wright
Michael.WrightSingle Emitter
asked in Got a question?
POP beam profile not as expected

I have built a sequential model where I am trying to simulate how to edge-couple a 780nm laser diode to a thin-film lithium niobate waveguide (PPLN). I am using POP to calculate the coupling efficiency and have acquired a .zbf file from Lumerical that is the ‘output mode’ of the PPLN when running in the SHG mode, and using this as the ‘input’ data for the fibre overlap integral data. I believe I am getting reasonable answers but the beam profile graph is not showing the beam profile I would expect. The x and y half-angle divergences (in degrees) of the laser is 4.25 and 8.5, respectively. The beam profile at a distance of 15 microns from the laser shows a beam that is bigger in x than in y but only in the POP graph. in the 3D shaded model it is larger in y than in x, as I would expect from a DBR type laser. Can someone help me make sense of this? The Rayleigh range of this beam is xR ~ 45 microns and yR ~ 11 microns, is the fact that I am looking at distances on the order the Rayleigh

591
Jeff.Wilde
Luminary
PBZ
PBZSingle Emitter
asked in Licensing and Installation
Installing Legacy Zemax on a new PC

I have a legacy “black” USB license for Zemax, and am hoping to install whichever legacy version of the software I have a right to (the old computer in our laboratory, on which Zemax was installed, having finally given up the ghost). Can anyone please assist?

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D

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