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    The optical power of the laser varied as expected with the exception of the hysterisis.  Our best explanation for this is that it is a result of some thermal effect.  We set the temperature control at a constant, but changing the diode current could affect the temperature, in which case some time would be needed to let the diode settle into a constant temperature.

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    In general, the modal nature of the laser spectrum behaved as expected.  However, there was evidence of ghosting that could have affected the data for the width of the peak for changing currents.

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    The peak wavelength did not vary as expected for different currents.  

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    The dependence of the temperature on the peak wavelength did vary as expected.  As the temperature increased, the peak wavelength appeared to asymptotically approach a particular value.  Unfortunately, to get more data at higher temperature, the diode laser would have to be subjected to temperatures that might harm the laser.

 

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