RT Journal Article
T1 Active and Quantum Integrated Photonic Elements by Ion Exchange in Glass
A1 Righini, Giancarlo C.
A1 Liñares Beiras, Jesús
K1 Ion-exchanged glass
K1 Active optical waveguides
K1 Quantum integrated optics
K1 Integrated photonics
AB Ion exchange in glass has a long history as a simple and effective technology to produce gradient-index structures and has been largely exploited in industry and in research laboratories. In particular, ion-exchanged waveguide technology has served as an excellent platform for theoretical and experimental studies on integrated optical circuits, with successful applications in optical communications, optical processing and optical sensing. It should not be forgotten that the ion-exchange process can be exploited in crystalline materials, too, and several crucial devices, such as optical modulators and frequency doublers, have been fabricated by ion exchange in lithium niobate. Here, however, we are concerned only with glass material, and a brief review is presented of the main aspects of optical waveguides and passive and active integrated optical elements, as directional couplers, waveguide gratings, integrated optical amplifiers and lasers, all fabricated by ion exchange in glass. Then, some promising research activities on ion-exchanged glass integrated photonic devices, and in particular quantum devices (quantum circuits), are analyzed. An emerging type of passive and/or reconfigurable devices for quantum cryptography or even for specific quantum processing tasks are presently gaining an increasing interest in integrated photonics; accordingly, we propose their implementation by using ion-exchanged glass waveguides, also foreseeing their integration with ion-exchanged glass lasers
PB MDPI
YR 2021
FD 2021
LK http://hdl.handle.net/10347/26737
UL http://hdl.handle.net/10347/26737
LA eng
NO Appl. Sci. 2021, 11(11), 5222; https://doi.org/10.3390/app11115222
NO This research was funded by Xunta de Galicia, Consellería de Educación, Universidades e FP, Grant GRC Number ED431C2018/11
DS Minerva
RD 28 abr 2026