Multi-mode laser beams have arbitrary amplitude and phase. The unique property of a single-mode laser beam is a Gaussian amplitude and zero phase difference in the waist position. In the last section we present specific case studies to show the effectiveness and limits of the method. Afterwards we demonstrate our new scattering model method for ray tracing simulations and show the results. We first discuss the nature of lasers and the definition of M 2. This concept allows one to use geometrical ray tracing to achieve physical-optics like results, including realistic spot size at lens foci, while still being fast and allowing for simple system optimization. While they have some disadvantages in terms of focus-ability, higher M 2 lasers offer higher power than single mode lasers and require lower precision of optical elements in the system.Įven when designing for a single-mode laser, Ray-tracing tends to yield nonrealistic results in places of interest such as lens focal planes. Among those laser sources are multimode fiber lasers, multimode fiber coupled diode lasers, excimers, multimode solid-state lasers, and VCSEL arrays. Customer Success Implementation Support.Īll rights reserved.Achieving diffraction limited results using geometric ray tracing in Zemax poses a challenge that must be overcome to correctly model realistic systems.īy default, optical systems are usually designed for single mode lasers. By continuing to use this website, you consent to the placement and use of cookies as described in our Cookie Policy. How do you get relevant information We use cookies on this website to enhance your user experience, improve the quality of our site, and to show you marketing that is more likely to be relevant to your interests.
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