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Entry  Fri Feb 19 14:14:29 2021, shruti, Notes, Laser, Power vs. Temperature plots for Rio PLANEX PvsT_20210219.zipPvsT.pdf
    Reply  Fri Feb 19 14:46:04 2021, rana, Notes, Laser, Power vs. Temperature plots for Rio PLANEX 
       Reply  Fri Feb 19 22:01:44 2021, aaron, Notes, Laser, Power vs. Temperature plots for Rio PLANEX 
    Reply  Mon Mar 15 12:11:51 2021, shruti, Notes, Laser, Power vs. Temperature plots for Rio PLANEX South.pdfRtoT.pdfSouthData.zip
Message ID: 2683     Entry time: Mon Mar 15 12:11:51 2021     In reply to: 2658
Author: shruti 
Type: Notes 
Category: Laser 
Subject: Power vs. Temperature plots for Rio PLANEX 

South Laser [Attachment 1]

The power dependence on temperature at different diode currents:

  • The plots are linear in sensor resistance on the x-axis
  • (Top figure) At 130 mA, while the sensor resistance decreased, an abrupt change was seen at 6.73 kOhms, and while increasing it was at 8.27 kOhms. At other regions it is locally reversible, i.e., going back and forth causes the same curve to be plotted.
  • (Top figure) This trend is repeatable, as the black lines show the results of the same change performed a second time.
  • (Middle figure) At around 120 mA, three such abrupt changes was seen in the range the data was taken.
  • (Bottom figure) Similar plot at 100 mA.

Data and notebook for plotting in Attachment 3

Conversion to Temperature

This notebook uses Rtyp values mentioned on the Rio Planex Datasheet found on the wiki documents page to obtain the plot and fit in Attachment 2.

That was used to make the temperature in deg C axes in Attachment 1.

Attachment 1: South.pdf  28 kB  Uploaded Mon Mar 15 13:12:29 2021  | Hide | Hide all
South.pdf
Attachment 2: RtoT.pdf  19 kB  Uploaded Mon Mar 15 13:12:39 2021  | Hide | Hide all
RtoT.pdf
Attachment 3: SouthData.zip  147 kB  Uploaded Mon Mar 15 13:32:18 2021
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