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- W4385737542 abstract "The wavelength of a single frequency quantum dot distributed feedback (DFB) laser operating in the O-band is athermalised over a 74 °C ambient temperature range. Two techniques are presented, one utilising the laser self-heating for tuning control, the other using a resistive heater. Both techniques show greatly improved power efficiency over conventional wavelength control schemes, and both demonstrate wavelength stability of better than 0.1 nm (17.5 GHz) without mode hops over the entire temperature range. The use of a high operating temperature quantum dot laser together with an innovative submount design to increase the thermal impedance of the device enables the improved use of the laser self-heating for wavelength tuning. The submount design entails the laser being suspended over an air gap with the use of glass supports, preventing heat from escaping from the diode." @default.
- W4385737542 created "2023-08-11" @default.
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- W4385737542 date "2023-09-12" @default.
- W4385737542 modified "2023-09-23" @default.
- W4385737542 title "Self-heating allows Athermal Laser Diode Wavelength Control using a Thermally Insulating Sub-mount over a 70 °C range" @default.
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- W4385737542 doi "https://doi.org/10.1364/oe.488713" @default.
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