| Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
|---|---|---|
| Article Number | 01009 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 1- Silicon Photonics and Integrated Optics | |
| DOI | https://doi.org/10.1051/epjconf/202328701009 | |
| Published online | 18 October 2023 | |
https://doi.org/10.1051/epjconf/202328701009
Photonic-chip integrated large-mode-area high-power CW optical amplifier
1 Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607 Hamburg, Germany
2 Integrated Optical Systems, MESA+Institute for Nanotechnology, University of Twente, 7500AE, Enschede, The Netherlands
3 LIGENTEC SA, Switzerland CH-1024 Ecublens, Switzerland
4 Physics Department, Universität Hamburg UHH, Luruper Chaussee 149, 22761 Hamburg, Germany
* Corresponding author: tobias.herr@desy.de
Published online: 18 October 2023
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.
© The Authors, published by EDP Sciences, 2023
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