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Temperature Stability Using the LDT-5948

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Temperature Stability Using the LDT-5948

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Measurement of a diode laser’s output wavelength is a highly accurate method of monitoring the chip temperature because of the relatively large wavelength shift that occurs when the laser temperature is varied. A typical DFB laser exhibits a 11 nm/o C. With a slope of this magnitude, milliKelvin changes in temperature can be measured with a suitable wavemeter.

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