Determination of the Temperature and Thermal Resistance of a Half-Disk Laser Diode by Measuring Pulsed Current-Voltage Characteristics

Determination of the Temperature and Thermal Resistance of a Half-Disk Laser Diode by Measuring Pulsed Current-Voltage Characteristics

A technique is proposed for determining the temperature of a laser diode operating in a continuous mode, as well as thermal resistance of the device by comparing its current-voltage characteristic with pulsed current-voltage characteristics measured at different temperatures. The technique was appli...

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Bibliographic Details
Published in:Semiconductors (Woodbury, N.Y.) Vol. 58; no. 2; pp. 191 - 195
Main Authors: Zubov, F. I., Shernyakov, Yu. M., Beckman, A. A., Moiseev, E. I., Salii (Guseva), Yu. A., Kulagina, M. M., Kalyuzhnyy, N. A., Mintairov, S. A., Nikolaev, A. V., Sherstnev, E. V., Maximov, M. V.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-02-2024
Springer Nature B.V
Subjects:
Active regions (lasers)
Current voltage characteristics
Heat transfer
Magnetic Materials
Magnetism
Measuring instruments
Microlasers
Overheating
Physics
Physics and Astronomy
Pulsed current
Quantum dots
Semiconductor lasers
Thermal resistance
thermal resistance
quantum dots
laser diodes
laser temperature
half-disk microlaser
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Summary:A technique is proposed for determining the temperature of a laser diode operating in a continuous mode, as well as thermal resistance of the device by comparing its current-voltage characteristic with pulsed current-voltage characteristics measured at different temperatures. The technique was applied to a ∅200 μm half-disk microlaser with an active region based on InGaAs/GaAs quantum dots. It was found that at currents corresponding to the peak laser power and lasing quenching due to overheating of the active region, the device temperature reaches 101 and 149°C, respectively. The thermal resistance of the laser is 110 K/W.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782624020179