Non‐Hermitian gauged topological laser arrays

S Longhi - Annalen der Physik, 2018 - Wiley Online Library
Stable and phase‐locked emission in an extended topological supermode of coupled laser
arrays, based on concepts of non‐Hermitian and topological photonics, is theoretically …

Phase-locked terahertz plasmonic laser array with 2 W output power in a single spectral mode

Y Jin, JL Reno, S Kumar - Optica, 2020 - opg.optica.org
Plasmonic lasers suffer from low output power and divergent beams due to their
subwavelength metallic cavities. We developed a phase-locking scheme for such lasers to …

Supersymmetric microring laser arrays

B Midya, H Zhao, X Qiao, P Miao, W Walasik… - Photonics …, 2019 - opg.optica.org
A coherent combination of emission power from an array of coupled semiconductor lasers
operating on the same chip is of fundamental and technological importance. In general, the …

Lateral mode control of an AlGaAs laser array in a Talbot cavity

JR Leger - Applied Physics Letters, 1989 - pubs.aip.org
This amplitude distribution is identical to the original near field of Eq.(1), but shifted by one-
half period (d! 2). Feedback light from an array lasing in the fundamental lateral mode is …

Injection locking of coupled‐stripe diode laser arrays

L Goldberg, HF Taylor, JF Weller, DR Scifres - Applied Physics Letters, 1985 - pubs.aip.org
The control of the far‐field beam pattern and the spectrum of 10‐element laser diode array
by injection locking to a single‐mode master laser are described. With less than 3 mW of …

Modal analysis of linear Talbot-cavity semiconductor lasers

D Mehuys, W Streifer, RG Waarts, DF Welch - Optics letters, 1991 - opg.optica.org
A modal analysis at threshold is presented for linear Talbot-cavity semiconductor lasers with
a finite number of array elements. The analysis self-consistently calculates the array …

Phase-locked laser arrays through global antenna mutual coupling

TY Kao, JL Reno, Q Hu - Nature Photonics, 2016 - nature.com
Phase locking of an array of lasers is a highly effective method in beam shaping because it
increases the output power and reduces the lasing threshold. Here, we show a conceptually …

Presence of temporal dynamical instabilities in topological insulator lasers

S Longhi, Y Kominis, V Kovanis - Europhysics Letters, 2018 - iopscience.iop.org
Topological insulator lasers are a newly introduced kind of lasers in which light snakes
around a cavity without scattering. Like for an electron current in a topological insulator …

Invited Article: Mitigation of dynamical instabilities in laser arrays via non-Hermitian coupling

S Longhi, L Feng - APL Photonics, 2018 - pubs.aip.org
Arrays of coupled semiconductor lasers are systems possessing complex dynamical
behavior and are of major interest in photonics and laser science. Dynamical instabilities …

Theory of chiral edge state lasing in a two-dimensional topological system

M Seclì, M Capone, I Carusotto - Physical Review Research, 2019 - APS
We theoretically study topological laser operation in a bosonic Harper-Hofstadter model
featuring a saturable optical gain. Crucial consequences of the chirality of the lasing edge …