by Simen M. Martinussen, Raimond N. Frentrop, Meindert Dijkstra, Frans Segerink, Victoria Tormo-Márquez, José Olivares and Sonia García-Blanco
Abstract:
Rare earth ion doped potassium double tungstates (e.g. KY(WO4)2, KYb(WO$_{textrm{4}}$)$_{textrm{2}}$, and KGd(WO$_{textrm{4}}$)$_{textrm{2}}$) have long been used as laser and amplifier materials thanks to the high achievable gain provided by the rare-earth ions. This family of host materials is also very attractive for nonlinear optics due to their high nonlinear refractive index and Raman gain. Very efficient on-chip solid state lasers, frequency combs, supercontinuum sources and Raman lasers could be realized if high refractive index waveguides with the correct dispersion were developed. textlessptextgreater textless/ptextgreaterTo date, the demonstrated integrated devices in rare-earth ion doped potassium double tungstates have shown very promising results, including high gain in on-chip amplifiers and high efficiency and output power in on-chip lasers. These devices, however, were fabricated using low refractive index contrast waveguides, which are not suitable for ring resonators or to achieve anomalous dispersion. High refractive index contrast KY(WO$_{textrm{4}}$)$_{textrm{2}}$ waveguides with high confinement are therefore needed as building blocks for active devices. textlessptextgreater textless/ptextgreaterIn this work, pedestal disk resonators are proposed, based on a combination of swift ion irradiation, focused ion beam milling and a novel wet etching process. In-coupling of light into the first fabricated pedestal disks will be presented.
Reference:
Simen M. Martinussen, Raimond N. Frentrop, Meindert Dijkstra, Frans Segerink, Victoria Tormo-Márquez, José Olivares and Sonia García-Blanco, “Pedestal disk resonator in potassium yttrium double tungstate”, In Integrated Optics: Devices, Materials, and Technologies XXII, International Society for Optics and Photonics, pp. 105350Q.
Bibtex Entry:
@inproceedings{martinussen_pedestal_2018,
title = {Pedestal disk resonator in potassium yttrium double tungstate},
volume = {10535},
url = {https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10535/105350Q/Pedestal-disk-resonator-in-potassium-yttrium-double-tungstate/10.1117/12.2289887.short},
doi = {10.1117/12.2289887},
abstract = {Rare earth ion doped potassium double tungstates (e.g. KY(WO4)2, KYb(WO$_{textrm{4}}$)$_{textrm{2}}$, and KGd(WO$_{textrm{4}}$)$_{textrm{2}}$) have long been used as laser and amplifier materials thanks to the high achievable gain provided by the rare-earth ions. This family of host materials is also very attractive for nonlinear optics due to their high nonlinear refractive index and Raman gain. Very efficient on-chip solid state lasers, frequency combs, supercontinuum sources and Raman lasers could be realized if high refractive index waveguides with the correct dispersion were developed. {textless}p{textgreater} {textless}/p{textgreater}To date, the demonstrated integrated devices in rare-earth ion doped potassium double tungstates have shown very promising results, including high gain in on-chip amplifiers and high efficiency and output power in on-chip lasers. These devices, however, were fabricated using low refractive index contrast waveguides, which are not suitable for ring resonators or to achieve anomalous dispersion. High refractive index contrast KY(WO$_{textrm{4}}$)$_{textrm{2}}$ waveguides with high confinement are therefore needed as building blocks for active devices. {textless}p{textgreater} {textless}/p{textgreater}In this work, pedestal disk resonators are proposed, based on a combination of swift ion irradiation, focused ion beam milling and a novel wet etching process. In-coupling of light into the first fabricated pedestal disks will be presented.},
urldate = {2019-01-24},
booktitle = {Integrated {Optics}: {Devices}, {Materials}, and {Technologies} {XXII}},
publisher = {International Society for Optics and Photonics},
author = {Martinussen, Simen M. and Frentrop, Raimond N. and Dijkstra, Meindert and Segerink, Frans and Tormo-Márquez, Victoria and Olivares, José and García-Blanco, Sonia},
month = feb,
year = {2018},
pages = {105350Q},
file = {Snapshot:E:\cmam_papers\files\1729\12.2289887.html:text/html;Snapshot:E:\Usuarios\Administrator\Zotero\storage\FQKR7HF3\12.2289887.html:text/html},
}