Spectral filters are important building blocks for many applications in integrated photonics,
including datacom and telecom, optical signal processing and astrophotonics. Sidewall …

A major issue in the fabrication of integrated Bragg grating filters in highly confined
waveguides is the average effective index fluctuations caused by waveguide dimension …

Waveguide Bragg grating filters with narrow bandwidths and high optical rejections are key
functions for several advanced silicon photonics circuits. Here, we propose and demonstrate …

Bragg gratings operating in reflection are versatile filters that are an important building block
of photonic circuits but, so far, their use has been limited due to the absence of CMOS …

Over the last two decades, many filters requiring custom spectral responses were obtained
from photo-inscribed fiber Bragg gratings because of the flexibility inherent to this …

Integrated Bragg gratings (IBGs) developed on the silicon-on-insulator (SOI) platform,
owning to their high spectral flexibility, are showing great potential for many optical …

To answer the growing need for more versatile integrated spectral filters, we show that weak
one-dimensional gratings can be designed towards any desired target spectrum. We follow …

Bragg filters stand as key building blocks of the silicon-on-insulator (SOI) photonics platform,
allowing the implementation of advanced on-chip signal manipulation. However, achieving …

Current silicon waveguide Bragg gratings typically introduce perturbation to the optical
mode in the form of modulation of the waveguide width or cladding. However, since such a …

We demonstrate a new type of on-chip Bragg grating designed to possess multiple
stopbands at predetermined wavelengths. By employing sidewall modulation to control the …