Digitally tunable dispersion controller using chirped multimode waveguide gratings

S Liu, D Liu, Z Yu, L Liu, Y Shi, D Dai - Optica, 2023 - opg.optica.org
We propose a digitally tunable dispersion controller (DTDC) for dispersion management that
shows potential for realizing phase correction, waveform generation, beamforming, and …

[HTML][HTML] Silicon nitride chirped spiral Bragg grating with large group delay

Z Du, C **ang, T Fu, M Chen, S Yang, JE Bowers… - APL Photonics, 2020 - pubs.aip.org
As one of the most important optical filtering devices, Bragg gratings have been extensively
used in various systems. A long Bragg grating is desired for many applications including …

Large group delay in silicon-on-insulator chirped spiral Bragg grating waveguide

Y Sun, D Wang, C Deng, M Lu, L Huang… - IEEE Photonics …, 2021 - ieeexplore.ieee.org
Limited by large transmission loss, the development of transverse electric (TE) mode silicon-
on-insulator (SOI) based on-chip long length chirped grating waveguide faces many …

Picosecond-resolution single-photon time lens for temporal mode quantum processing

C Joshi, BM Sparkes, A Farsi, T Gerrits, V Verma… - Optica, 2022 - opg.optica.org
Techniques to control the spectro-temporal properties of quantum states of light at ultrafast
time scales are crucial for numerous applications in quantum information science. In this …

Large group delay and low loss optical delay line based on chirped waveguide Bragg gratings

Y Li, L Xu, D Wang, Q Huang, C Zhang, X Zhang - Optics Express, 2023 - opg.optica.org
On-chip optical delay lines (ODLs) based on chirped waveguide Bragg gratings (CWBG)
have attracted much attention in recent years. Although CWBGs are well developed, the …

Tunable optical delay line based on integrated grating-assisted contradirectional couplers

X Wang, Y Zhao, Y Ding, S **ao, J Dong - Photonics Research, 2018 - opg.optica.org
Tunable optical delay lines are one of the key building blocks in optical communication and
microwave systems. In this work, tunable optical delay lines based on integrated grating …

On-chip digitally tunable positive/negative dispersion controller using bidirectional chirped multimode waveguide gratings

S Liu, R Ma, Z Yu, Y Shi, D Dai - Advanced Photonics, 2023 - spiedigitallibrary.org
A silicon-based digitally tunable positive/negative dispersion controller (DC) is proposed
and realized for the first time using the cascaded bidirectional chirped multimode waveguide …

Optical pump-rejection filter based on silicon sub-wavelength engineered photonic structures

D Pérez-Galacho, C Alonso-Ramos, F Mazeas… - Optics letters, 2017 - opg.optica.org
The high index contrast of the silicon-on-insulator (SOI) platform allows the realization of
ultra-compact photonic circuits. However, this high contrast hinders the implementation of …

Large dispersion silicon Bragg grating for full-field 40-GBd QPSK phase retrieval receiver

B Stern, H Chen, K Kim, NK Fontaine - Journal of Lightwave …, 2022 - opg.optica.org
Optical devices that introduce and compensate for dispersion serve an important role in
communication networks, photonic signal processing, and nonlinear optics. In this article, we …

Complex spectral filters in silicon waveguides based on cladding-modulated Bragg gratings

D Pereira-Martín, JM Luque-González… - Optics …, 2021 - opg.optica.org
Spectral filters are important building blocks for many applications in integrated photonics,
including datacom and telecom, optical signal processing and astrophotonics. Sidewall …