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I am currently looking at this VCSEL. According to the datasheet, it has a narrow spectral linewidth and emits a Gaussian beam, which are both properties that I find interesting. But I'm also interested in the wavefront quality. However, despite my research, I cannot find any sources that discuss the wavefront quality of VCSELs. What is the wavefront quality of VCSELs? How does the wavefront quality of VCSELs compare to Fabry-Perot laser diodes and DPSS lasers?

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Companies that sell optical components often help customers choose the best component. This includes understanding them, how they work, tradeoffs, and so on. Your link has a Complete Product Details button, which has a tech support link. Use it.

Also a good general source for information on optical components is the RP Photonics Encyclopedia and Buyer's Guide. For example, see Vertical Cavity Surface-emitting Lasers and Fabry–Perot Laser Diodes.

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  • $\begingroup$ I am aware of this. I have asked Thorlabs, but they do not know what the wavefront quality for that particular diode is. Therefore, I am asking here to get a rough idea of the general wavefront quality of VCSELs. I have done my own research on this, but I have not been able to find anything, so I was curious if the more knowledgeable people would know anything (or have any references that explore this). $\endgroup$ Aug 2, 2021 at 6:56

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