Quantum dot membrane external-cavity surface-emitting laser at 1.5 μm
Open Access
- 7 June 2021
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 118 (23), 231101
- https://doi.org/10.1063/5.0053961
Abstract
A membrane external-cavity surface-emitting laser (MECSEL) with an InAs/InP quantum dot (QD) based gain region is demonstrated. The pumping scheme employs a 90° off-axis parabolic mirror to focus the diode laser pump beam to a nearly circular pump spot. With this pump arrangement, the QD MECSEL with SiC heat spreaders produced 320 mW output power at room temperature with direct emission in the near-infrared at 1.5 μm. We report a record value of 86 nm for the tuning range at this wavelength region, owing to a broad QD gain bandwidth and wide tunability in MECSELs.Funding Information
- Academy of Finland (326455)
- Academy of Finland (320165)
- Agence Nationale de la Recherche (ANR-15-CE24-0034-01)
- RENATECH+with NanoRennes platform
- Magnus Ehrnroothin Säätiö
- Tekniikan Edistämissäätiö
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