Asymmetric dual-loop feedback to suppress spurious tones and reduce timing jitter in self-mode-locked quantum-dash lasers emitting at 1.55 μm

H Asghar, JG McInerney - Optics Letters, 2017 - opg.optica.org
… in self-mode-locked quantum-dash lasers with conventional single- and dual-loop feedback.
In this Letter, we report optimal suppression of spurious tones by optimizing the delay in the …

An asymmetric dual-loop feedback scheme with optimized second delay time to suppress spurious tones and timing jitter of self-mode-locked quantum dash lasers

H Asghar, J McInerney - arXiv preprint arXiv:1707.09399, 2017 - arxiv.org
… in self-mode-locked quantum-dash lasers with conventional single- and dual-loop feedback.
In this letter, we report optimal suppression of spurious tones by optimizing the delay in the …

Dynamical sweet spot engineering via two-tone flux modulation of superconducting qubits

JA Valery, S Chowdhury, G Jones, N Didier - PRX Quantum, 2022 - APS
… Current superconducting quantum processors require … flux can be used to avoid spurious
resonances. However, increased … Here we experimentally demonstrate that two-tone flux …

Ultra-fast optical ranging using quantum-dash mode-locked laser diodes

P Trocha, JN Kemal, Q Gaimard, G Aubin, F Lelarge… - Scientific Reports, 2022 - nature.com
… to the lensed fiber prevents spurious back-reflections into the … RF tones that are generated
by mixing of pairs of optical tones … The RF tones exhibit substantial linewidths of 10 MHz and …

High performance InP-based quantum dash semiconductor mode-locked lasers for optical communications

GH Duan, A Shen, A Akrout, F Van Dijk… - Bell Labs Technical …, 2009 - ieeexplore.ieee.org
… In particular, we will describe the quantum dash nanostructures used for the mode-locked …
on detailed quantum dash structures. We will demonstrate that these quantum dash lasers can …

Optimum stabilization of self-mode-locked quantum dash lasers using dual optical feedback with improved tolerance against phase delay mismatch

H Asghar, E Sooudi, P Kumar, W Wei, JG McInerney - Optics express, 2017 - opg.optica.org
… InAs/InP quantum dash MLL with an active region consisting of nine InAs quantum dash
epitaxy (GSMBE) embedded within two barrier layers (dash-in-barrier device), and separate …

Stabilization of self-mode-locked quantum dash lasers by symmetric dual-loop optical feedback

H Asghar, W Wei, P Kumar, E Sooudi… - Optics Express, 2018 - opg.optica.org
… Most recently, we have used asymmetric dual-loop feedbacks with optimized inner loop
delay to suppress spurious tones and timing jitter in self-mode-locked lasers [31]. Furthermore, …

Stabilisation of self mode-locked quantum dash semiconductor lasers

H Asghar - 2018 - cora.ucc.ie
… induced in self mode-locked quantumdash lasers with conventional single- and dual-loop
feedback. We reported optimal suppression of spurious tones by optimising the delay in the …

Spurious-free time-to-digital conversion in an ADPLL using short dithering sequences

K Waheed, RB Staszewski, F Dulger… - … on Circuits and …, 2011 - ieeexplore.ieee.org
… ), free from any phase domain spurious tones generated as a … This deadband can potentially
result in spurious tones, whenever … horizontal dashed lines. Another interpretation of the …

Universal-dephasing-noise injection via Schrödinger-wave autoregressive moving-average models

A Murphy, J Epstein, G Quiroz, K Schultz, L Tewala… - Physical Review …, 2022 - APS
… injection of arbitrary spectra in quantum circuits that can be … Furthermore, tones in the noise
spectra have been observed … not amplify the effect of spurious spectral features. In many …