Programmable true time delay lines using integrated waveguide meshes

D Pérez-López, E Sánchez… - Journal of Lightwave …, 2018 - opg.optica.org
We analyze and explore the potential that waveguide-mesh-based architectures used in
programmable photonic integrated circuits can be configured to enable true time optical …

Lossless microwave photonic delay line using a ring resonator with an integrated semiconductor optical amplifier

Y Xie, L Zhuang, KJ Boller, AJ Lowery - Journal of optics, 2017 - iopscience.iop.org
Optical delay lines implemented in photonic integrated circuits (PICs) are essential for
creating robust and low-cost optical signal processors on miniaturized chips. In particular …

Switched time-delay elements based on AlGaAs/GaAs optical waveguide technology at 1.32 um for optically controlled phased-array antennas

CT Sullivan, SD Mukherjee… - … Applications VI and …, 1992 - spiedigitallibrary.org
Integrated optical time-shift networks consisting of cascaded pairs of 2 x 2 linear electrooptic
switches and optical delay lines in GaAs waveguides at 1.32 micron are investigated for true …

Programmable multiple true-time-delay elements based on a Fourier-domain optical processor

X Yi, L Li, TXH Huang, RA Minasian - Optics Letters, 2012 - opg.optica.org
A new technique to realize an array of multiple true-time-delay elements, which can be
independently and continuously tuned, is reported. It is based on a WDM parallel signal …

Continuously-tunable microwave photonic true-time-delay based on a fiber-coupled beam deflector and diffraction grating

RT Schermer, F Bucholtz, CA Villarruel - Optics express, 2011 - opg.optica.org
This paper reports the demonstration of a continuously-tunable true-time delay line for
microwave photonics and optical communications capable of high-resolution phase control …

Gigahertz optical tuning of an on-chip radio frequency photonic delay line

Y Liu, A Choudhary, D Marpaung, BJ Eggleton - Optica, 2017 - opg.optica.org
Rapid and continuous tunability of time delay is a crucial functionality for radio frequency
(RF) photonic signal processing systems. Recent developments in photonic integration have …

On-chip programmable ultra-wideband microwave photonic phase shifter and true time delay unit

M Burla, L Romero Cortés, M Li, X Wang… - Optics letters, 2014 - opg.optica.org
We proposed and experimentally demonstrated an ultra-broadband on-chip microwave
photonic processor that can operate both as RF phase shifter (PS) and true-time-delay (TTD) …

[HTML][HTML] Subwavelength grating enabled on-chip ultra-compact optical true time delay line

J Wang, R Ashrafi, R Adams, I Glesk, I Gasulla… - Scientific reports, 2016 - nature.com
An optical true time delay line (OTTDL) is a basic photonic building block that enables many
microwave photonic and optical processing operations. The conventional design for an …

Tunable microwave-photonic filter using frequency-to-time mapping-based delay lines

A Mokhtari, K Jamshidi, S Preußler, A Zadok… - Optics …, 2013 - opg.optica.org
A new implementation of microwave-photonic filters (MPFs) based on tunable optical delay
lines is proposed and demonstrated. The variable delay is based on mapping of the spectral …

Continuously tunable true-time delay lines based on a one-dimensional grating waveguide for beam steering in phased array antennas

G Wang, T Dai, J Jiang, X Guo, B Chen, Y Wang… - Applied Optics, 2018 - opg.optica.org
In this paper, we propose integrated one-dimensional (1D) grating waveguide-based true-
time delay (TTD) lines on a silicon-on-insulator (SOI) platform. Through optimizing the …