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Entry  Wed Jun 2 01:47:28 2010, Alberto, Kiwamu, Update, IOO, mode measurement of new input optics afterMMT1.pngbeam_profile.pngMMT1_.dat.zipinside_vac_2.png
    Reply  Wed Jun 2 03:50:03 2010, Koji, Update, IOO, mode measurement of new input optics 
       Reply  Thu Jun 3 13:14:27 2010, kiwamu, Update, IOO, mode measurement of new input optics inside_vac_2.png
          Reply  Thu Jun 3 14:01:51 2010, kiwamu, Update, IOO, mode measurement of new input optics check_measurement_edit.png
             Reply  Thu Jun 3 14:13:20 2010, Jenne, Update, IOO, mode measurement of new input optics 
    Reply  Thu Jun 3 14:40:28 2010, Alberto, Kiwamu, Update, IOO, mode measurement of new input optics 
       Reply  Tue Jun 8 00:38:22 2010, Koji, Kiwamu, Update, IOO, improved Gaussian beam in new IOO 2010-6-7_2.png
          Reply  Fri Jun 11 14:31:04 2010, kiwamu, Update, IOO, mode matching of new IOO profile_MMT.pngdist_MMO.png
Message ID: 3046     Entry time: Thu Jun 3 14:40:28 2010     In reply to: 3029     Reply to this: 3054
Author: Alberto, Kiwamu 
Type: Update 
Category: IOO 
Subject: mode measurement of new input optics 

Quote:

inside_vac_2.png

 

For the record, we wanted to check whether the fringes on the beam spot were caused by SM2 (see diagram above). We tried two different mirrors for SM2,

The first was one of the flat, 45 degree ones that were already on the BS table. The last, which is the one currently in place, was inside the plastic box with the clean optics that Jenne left us .

The fringes were present in both cases.

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