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physics.optics2024
Ultra-narrow linewidth laser across the C-band using polarization-controlled dual-cavity feedback
Jeppe H. Surrow, Simon T. Thomsen, Rakesh R. Kumar +6
A standard method to reduce the linewidth of semiconductor lasers involves the use of external optical feedback (EOF). However, feedback powers less than 1 % usually trigger cohere…
physics.optics2023★ 3 cited
Continuous-wave second-harmonic generation in the far-UVC pumped by a blue laser diode
Eric J. Stanton, Peter Tønning, Emil Z. Ulsig +6
Far-UVC light in the wavelength range of 200-230 nm has attracted renewed interest because of its safety for human exposure and effectiveness in inactivating pathogens. Here we pre…