High-Power Tunable Laser Using Silicon Photonics
Author Information
Author(s): Neetesh Singh, Jan Lorenzen, Muharrem Kilinc, Kai Wang, Milan Sinobad, Henry Francis, Jose Carreira, Michael Geiselmann, Umit Demirbas, Mikhail Pergament, Sonia M. Garcia-Blanco, Franz X. Kärtner
Primary Institution: Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
Hypothesis
Can integrated photonics achieve high-power tunable lasers comparable to benchtop systems?
Conclusion
The study demonstrates a high-power tunable laser based on silicon photonics with an output power of 1.8 W.
Supporting Evidence
- The device achieved an output power of 1.8 W over a tunability range of 60 nm.
- The integrated LMA device can significantly increase the power of existing tunable lasers.
- The power levels demonstrated surpass those of many benchtop systems.
Takeaway
This research shows that we can make really powerful lasers on tiny chips, which can be used for things like space exploration and medical procedures.
Methodology
The device was fabricated in two steps, involving a silicon substrate and a thulium-doped alumina gain layer.
Limitations
The power generation was limited by the seed laser and the passive film loss was higher than expected.
Digital Object Identifier (DOI)
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