An optical parametric Bragg amplifier on a CMOS chip
In: Nanophotonics, Jg. 10 (2021), Heft 13, S. 3507-3518
Online
academicJournal
Zugriff:
We demonstrate a complementary metal–oxide–semiconductor (CMOS)-compatible optical parametric Bragg amplifier on an ultra-silicon-rich nitride chip. The amplifier design incorporates advantageous group index properties in a nonlinear Bragg grating to circumvent phase matching limitations arising from the bulk material and waveguide dispersion. The grating structure further augments the effective nonlinear parameter of 800 W−1/m, considerably lowering the power required for the observation of strong parametric gain. On/off optical parametric gain of 20 dB is achieved using a low peak power of 1.6 W, in good agreement with numerical calculations. This represents a 7 dB improvement in the parametric gain compared to the absence of grating enhancement which is attributed to the Bragg grating induced superior phase matching.
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An optical parametric Bragg amplifier on a CMOS chip
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Autor/in / Beteiligte Person: | Choi Ju Won ; Byoung-Uk, Sohn ; Ezgi, Sahin ; Chen George F. R. ; Peng, Xing ; Ng Doris K. T. ; Eggleton Benjamin J. ; Tan Dawn T. H. |
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Zeitschrift: | Nanophotonics, Jg. 10 (2021), Heft 13, S. 3507-3518 |
Veröffentlichung: | De Gruyter, 2021 |
Medientyp: | academicJournal |
ISSN: | 2192-8614 (print) ; 2021-0302 (print) |
DOI: | 10.1515/nanoph-2021-0302 |
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