Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Vassilios Kovanis"'
Publikováno v:
APL Machine Learning, Vol 2, Iss 3, Pp 036105-036105-13 (2024)
Metasurfaces are sub-wavelength patterned layers for controlling waves in physical systems. In optics, metasurfaces are created by materials with different dielectric constants and are capable of unconventional functionalities. We develop a deep-lear
Externí odkaz:
https://doaj.org/article/0dd657f879e344b99fcd44333a393927
Publikováno v:
Physical Review Research, Vol 4, Iss 1, p L012039 (2022)
The global structure of the isochrons and the corresponding phase response curves are investigated and numerically computed for the fundamental photonic oscillator consisting of an optically injected laser. Their crucial role in the synchronization d
Externí odkaz:
https://doaj.org/article/8d9edf4c95084b6aa3aa8961e643c9e9
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-9 (2019)
We consider the properties of the small-signal modulation response of symmetry-breaking phase-locked states of twin coupled semiconductor lasers. The extended stability and the varying asymmetry of these modes allows for the introduction of a rich se
Externí odkaz:
https://doaj.org/article/c1c33f47cb6f44abbe7a4f691e3877c4
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 2, Pp 565-569 (2012)
The latest breakthroughs on the frontiers of semiconductor laser capabilities are presented. Achievements including the impressive advances in high-speed lasers with low pJ/bit energy consumption, high-power vertical external cavity surface emitting
Externí odkaz:
https://doaj.org/article/1b132b4e6e9e40569e71a19700dcf96e
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 28:1-9
The complete set of intrinsic dimensionless parameters of a packaged and fiber-pigtailed distributed feedback (DFB) semiconductor laser are extracted from the non-linear operational stability boundaries of the optical-injection-locking (OIL) architec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fc610c141094989e135f125b88bf5b7
https://doi.org/10.1109/jstqe.2021.3075645
https://doi.org/10.1109/jstqe.2021.3075645
Autor:
Luke F. Lester, Daniel J. Herrera, Vassilios Kovanis, Kevin Tomkins, Constantinos A. Valagiannopoulos
Publikováno v:
IEEE Photonics Technology Letters. 33:1399-1402
A semi-analytical dimensionless formula is presented for predicting the period-one frequency of an optically-injected laser over a wide range of injection powers and positive detunings. The result shows that for any given injected optical power, ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8e74c0050c1169baabe0ef1467a1595
https://doi.org/10.1109/lpt.2021.3123458
https://doi.org/10.1109/lpt.2021.3123458
Publikováno v:
IEEE Antennas and Propagation Magazine. 63:51-59
The dynamics of the injection-locking architecture with semiconductor lasers on photonic integrated circuits or on a tabletop configuration with discrete devices have been investigated analytically, numerically, and experimentally for the past 45 yea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a2cb2d7294b3f05a11d449673b45e98
https://doi.org/10.1109/map.2020.3021391
https://doi.org/10.1109/map.2020.3021391
Autor:
Luke F. Lester, Daniel J. Herrera, Vassilios Kovanis, Kevin Tomkins, Constantinos Valagiannopoulos
Publikováno v:
2021 IEEE Photonics Conference (IPC).
A tunable photonic oscillator with continuous tuning from 5–200 GHz is modeled and realized using period 1 dynamics in an injection-locking system. The measured frequencies match the values predicted based on the injection ratio, optical detuning,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7ddba956ac9ba68c4e46969984cffdd
https://doi.org/10.1109/ipc48725.2021.9593050
https://doi.org/10.1109/ipc48725.2021.9593050
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 25:1-7
We dissect the enabling capabilities of the tunable period-one (P1) limit cycles of optically injected quantum cascade laser (QCL) oscillators for the generation of optical frequency combs. As such, we theoretically investigate the P1 dynamics of a Q
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::33ec847a09a385972469a4903f1a64c6
https://doi.org/10.1109/jstqe.2019.2919803
https://doi.org/10.1109/jstqe.2019.2919803
Publikováno v:
IEEE Photonics Journal, Vol 11, Iss 1, Pp 1-9 (2019)
We consider the properties of the small-signal modulation response of symmetry-breaking phase-locked states of twin coupled semiconductor lasers. The extended stability and the varying asymmetry of these modes allows for the introduction of a rich se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f7e9b4a792d0bba18df1d720dfefa24
https://doi.org/10.1109/jphot.2018.2889145
https://doi.org/10.1109/jphot.2018.2889145