Compact mode converters in thin-film lithium niobate integrated platforms.
Opt Lett
; 49(11): 2958-2961, 2024 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-38824302
ABSTRACT
Mode converters, crucial elements within photonic integrated circuits (PICs) designed for multimode optical transmission and switching systems, present a challenge due to their bulky structures in thin-film lithium niobate (TFLN) integrated platforms, which are incompatible with the compact and efficient nature desired for dense PICs. In this work, we propose TE1-TE0, TE2-TE0, and TE3-TE0 mode converters in shallowly etched TFLN, within small footprints. The experimental results show that the insertion loss is 0.4 dB, 0.6 dB, and 0.5 dB for the compact TE1-TE0, TE2-TE0, and TE3-TE0 mode converters, respectively, and these devices can be operated within a wide 1 dB bandwidth (BW) over 100 nm. This work facilitates the development of low-loss, broadband, and compact monolithically integrated photonic devices for future multimode communication networks in TFLN integrated platforms.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Opt Lett
/
Opt. lett. (Online)
/
Optics letters (Online)
Ano de publicação:
2024
Tipo de documento:
Article