All-optical RF spectrum analyzer with a 5 THz bandwidth based on CMOS-compatible high-index doped silica waveguides
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 1574-1577 |
| Journal / Publication | Optics Letters |
| Volume | 46 |
| Issue number | 7 |
| Online published | 19 Mar 2021 |
| Publication status | Published - 1 Apr 2021 |
Link(s)
Abstract
We report an all-optical radio-frequency (RF) spectrum analyzer with a bandwidth greater than 5 THz, based on a 50 cm long spiral waveguide in a CMOS-compatible high-index doped silica platform. By carefully mapping out the dispersion profile of the waveguides for different thicknesses, we identify the optimal design to achieve near-zero dispersion in the C-band. To demonstrate the capability of the RF spectrum analyzer, we measure the optical output of a femtosecond fiber laser with an ultrafast optical RF spectrum in the terahertz regime.
Citation Format(s)
All-optical RF spectrum analyzer with a 5 THz bandwidth based on CMOS-compatible high-index doped silica waveguides. / LI, Yuhua; KANG, Zhe; ZHU, Kun et al.
In: Optics Letters, Vol. 46, No. 7, 01.04.2021, p. 1574-1577.
In: Optics Letters, Vol. 46, No. 7, 01.04.2021, p. 1574-1577.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
