Journal
OPTICS LETTERS
Volume 46, Issue 10, Pages 2465-2468Publisher
Optica Publishing Group
DOI: 10.1364/OL.412746
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Funding
- Agence Nationale de la Recherche [ANR-15-CE24-003401]
- National Center of Competence in Research Quantum Science and Technology [ANR-15-CE24-0034-01]
- Region Bretagne
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Class A shot-noise limited operation has been achieved in an electrically pumped VECSEL, allowing for noiseless laser oscillation integration in applications with low power consumption and footprint requirements. Proper optimization of cavity dimensions enables single frequency operation without intracavity filtering components, leading to shot-noise limited intensity noise spectra.
Class A shot-noise limited operation is achieved in an electrically pumped vertical external cavity surface emitting laser (VECSEL), opening the way for integration of such peculiar noiseless laser oscillation in applications where low power consumption and footprint are mandatory. The quantum well active medium is grown on an InP substrate to enable laser oscillation at telecom wavelengths. Single frequency class A operation is obtained by proper optimization of the cavity dimensions, ensuring at the same time a sufficiently long and high-finesse cavity without any intracavity filtering components. The laser design constraints due to electrical pumping are discussed as compared to optical pumping. The intensity noise spectrum of this laser is shown to be shot-noise limited, leading to a relative intensity noise of -160 dB/Hz for 3.1 mA detected photocurrent. (C) 2021 Optical Society of America
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