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How can I use the thermistor of the TOC03 packages?

April 26, 2017Packages thermistor

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How can I use the thermistor of the TOC03 packages?

2 Answers

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The TOC03 packages of our DFB and DBR lasers comprise a thermistor that is located close to the laser chip. The thermistor enables the measurement of the laser temperature. For many applications it is important to control the wavelength by stabilizing the temperature of the laser. The integrated thermistor has a negative temperature coefficient (NTC). The resistance decreases with increasing temperature. eagleyard uses NTCs from Betatherm, Type 10K3A1 (10kOhm @ 25C, typ. Beta = 3892). You will find a good explanation of the Beta Coefficient and a table of the resistance versus temperature on the web site of the manufacturer.

0

Posted

The TOC03 packages of our DFB and DBR lasers comprise a thermistor that is located close to the laser chip. The thermistor enables the measurement of the laser temperature. For many applications it is important to control the wavelength by stabilizing the temperature of the laser. The integrated thermistor has a negative temperature coefficient (NTC). The resistance decreases with increasing temperature. eagleyard uses NTCs from Betatherm, Type 10K3A1 (10kOhm @ 25°C, typ. Beta = 3892). You will find a good explanation of the Beta Coefficient and a table of the resistance versus temperature on the web site of the manufacturer.