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Entry  Fri Jun 17 16:05:07 2011, kiwamu, Update, ABSL, LightWave out of MOPA box DSC_3139_small.png
    Reply  Mon Jun 20 11:38:49 2011, kiwamu, Update, ABSL, I-P curve of LightWave M126-1064-700 IP_curve.png
       Reply  Mon Jun 20 13:48:25 2011, Koji, Update, ABSL, I-P curve of LightWave M126-1064-700 
       Reply  Mon Jun 20 16:44:02 2011, steve, Update, ABSL, I-P curve of LightWave M126-1064-700 
          Reply  Thu Jun 23 22:59:45 2011, kiwamu, Update, ABSL, I-P curve of LWE IP_curve_small.png
             Reply  Fri Jun 24 07:49:23 2011, steve, Update, ABSL, I-P curve of LWE with serial numbers 
Message ID: 4841     Entry time: Mon Jun 20 13:48:25 2011     In reply to: 4840
Author: Koji 
Type: Update 
Category: ABSL 
Subject: I-P curve of LightWave M126-1064-700 

Hmm. Was the current within the operating range? (i.e. Is it a 700mW laser or a 1W one?)

You can obtain the nominal operating current from the old EPICS values (or some elog entries).

Note that NPROs are designed to be healthy only at around the nominal pumping power
(i.e. thermal gradient, and thermal lensing of the crystal, etc.)

ALSO:

Be aware that this laser should be used under the old SOP. So the appropriate interlocking is mandatory.

And probably we need to modify the SOP such that it reflects the latest situation.

Quote:

The I-P curve of the LightWave NPRO, which was taken out from the MOPA box, was measured. It looks healthy.

The output power can go up to about 1 W, but I guess we don't want it to run at a high power to avoid any further degradation since the laser is old.

ELOG V3.1.3-