Hello, I am interested in this lens... but I'd like to know technical details, in particular what the focal length is, the NA value and the diameter....can you point to a data sheet?
The point is that the lens must be well matched to the laser diode; I had complaints about the beam quality of my single mode lasers, and this was due to the fact that the Roithner Lens-27 I used is matched to ordinary DVD diodes that typically have a fast opening angle of 17 degrees; but it is not well-matched to the 642nm Opnext H6385 I use, which leads to all sorts of spill-over diffraction effects, Airy rings, etc.
Thus I am looking for lenses optimized for those diodes (which have a fast opening angle of 23 degrees).
So, can you tell the optical data of your 650-G-1?
Thanks,
R.X.
PS: Or perhaps some other person could tell how the far-field pattern of this lens looks, for an Opnext H6385? - thanks.
The point is that the lens must be well matched to the laser diode; I had complaints about the beam quality of my single mode lasers, and this was due to the fact that the Roithner Lens-27 I used is matched to ordinary DVD diodes that typically have a fast opening angle of 17 degrees; but it is not well-matched to the 642nm Opnext H6385 I use, which leads to all sorts of spill-over diffraction effects, Airy rings, etc.
Thus I am looking for lenses optimized for those diodes (which have a fast opening angle of 23 degrees).
So, can you tell the optical data of your 650-G-1?
Thanks,
R.X.
PS: Or perhaps some other person could tell how the far-field pattern of this lens looks, for an Opnext H6385? - thanks.
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