j*****u
发帖数: 1 | 1 edge emitter 是PN Junction semiconductor laser,
Thanks! | g***u
发帖数: 22 | 2 Use a blade and a 1-D precise positioner and a power metter. Put the power
meter behand the blade which is mounted on the positioner. Move the postioner,
measure the the Power as a function of position, fitted with cummulative
guassian funcion
it | g***u
发帖数: 22 | 3 elliptical beam is simply a guanssin beam that has different x waist and y
waist. Do the suggested experiment at the same location in two ( may be three
) different orentations, you can fit the beam profile at that point.
postioner,
Is |
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