Fully adiabatic polarization rotator-splitter based on thin-film lithium niobate platform.
Opt Express
; 31(12): 19604-19612, 2023 Jun 05.
Article
em En
| MEDLINE
| ID: mdl-37381371
ABSTRACT
A Polarization Rotator-Splitter (PRS) based on thin-film lithium niobate (TFLN) is demonstrated in this work. The PRS consists of a partially etched polarization rotating taper and an adiabatic coupler, which enables the input TE0 and TM0 to be output as TE0 from two ports, respectively. The fabricated PRS using standard i-line photolithography achieved large polarization extinction ratios (PERs) of > 20â
dB across the whole C-band. Excellent polarization characteristics are maintained when the width is changed by ±150â
nm. The on-chip insertion losses of TE0 and TM0 are less than 1.5â
dB and 1â
dB, respectively.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article