Recent content by major_tom

thanks so far, it has been very helpful and interesting. One last question (I hope). From what has been said i assume this means that as the laser heats up and expands the coherence length will reduce due to the changes in wavelength and frequency? Thanks

Thanks for the reply, what is it which actually effects the coherence properties? Also would it be possible that you could explain what relocking is please. Thanks Tom

Hi all I am hoping that somebody here will be able to tell me why that different types of lasers eg He-Ne or Nd:YAG have different coherence lengths and how the coherence of a laser can be improved. I am thinking it is to do with the different gain mediums and the emission process...