Photonic-chip integrated large-mode-area high-power CW optical amplifier
Year: 2023
Type: conference-paper
Abstract: Here, we report on a CMOS-compatible thulium-doped high power continuous wave (CW) optical amplifier, leveraging large mode-area gain waveguides. The amplifier structure combines a silicon nitride waveguide above which a sputtered 1250 nm-thick thulium-doped alumina gain layer is deposited. We demonstrate >220 mW output signal power at center wavelength of 1850 nm inside a 9-cm-long amplifier. Small signal gain of >15 dB is achieved.
Source: EPJ Web of Conferences
Authors: Mahmoud A. Gaafar, Kai Wang, Markus Ludwig, Thibault Wildi, Jan Lorenzen, Henry Francis, Michael Geiselmann, Milan Sinobad, Franz X. Kärtner, SoniaM. Garcia-Blanco, Neetesh Singh, Tobias Herr
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4387739132