The coherence length of this Osram Pl530 is over 1 meter. I assume its spectral width is good for Raman applications. But its wavelength is shorter than 532nm. Do Thorlabs' filters FELH550 and DMLP550 still work?
https://www.ebay.com/itm/326880022268?_skw=single+frequency+laser&itmmeta ...
Search found 2 matches
- Sun Jan 25, 2026 11:12 pm
- Forum: OpenRAMAN
- Topic: Review of cheap $35 532nm Laser
- Replies: 4
- Views: 81444
- Sat Dec 27, 2025 5:10 pm
- Forum: OpenRAMAN
- Topic: Review of cheap $35 532nm Laser
- Replies: 4
- Views: 81444
Re: Review of cheap $35 532nm Laser
Has anyone looked into OSRAM PL530? It looks like a good choice for low cost Raman Spectrometer. People are using it to make holograms on Facebook Holography groups. With a TEC its line width can be well below 0.1nm. But its wavelength is 2nm shorter than CPS532. I am wondering if anyone has tried it.