Zobrazeno 1 - 10
of 555
pro vyhledávání: '"Liam P, Barry"'
Autor:
Seán Ó Dúill, Leidy Rodriguez, David Alvarez-Outerelo, Francisco J. Diaz-Otero, Ankit Sharma, Frank Smyth, Liam P. Barry
Publikováno v:
Optics, Vol 4, Iss 4, Pp 551-562 (2023)
We present the results of the detected voltage distribution of a quantum random number generator (QRNG) based on a photonic integrated circuit comprising a semiconductor laser, delay interferometer and photodetector. We find that the integrated QRNG
Externí odkaz:
https://doaj.org/article/a87f6c7b728b456aa9566d49558ace37
Autor:
Seán P. Ó Dúill, Liam P. Barry
Publikováno v:
Photonics, Vol 11, Iss 9, p 813 (2024)
Here, we report on a simplified laser frequency noise measurement technique employing an acousto-optic modulator, a delay line, and a real-time oscilloscope. The technique is a slight modification of the typical delayed heterodyne method. Instead of
Externí odkaz:
https://doaj.org/article/ba032d69dbb54ee19d1b3694076a310e
Autor:
Sean P. O'duill, Liam P. Barry
Publikováno v:
IEEE Access, Vol 10, Pp 119875-119882 (2022)
We report on a technique that uses RF quadrature demodulation to measure laser FM-noise based on a delayed self-heterodyne setup. The measurement is self-referencing and the FM-noise can be measured with high precision over a sufficiently long durati
Externí odkaz:
https://doaj.org/article/1648e41b9b0c4a5a9071e71407493842
Autor:
Ahmed Galib Reza, Marcos Troncoso-Costas, Colm Browning, Francisco J. Diaz-Otero, Liam P. Barry
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 3, Pp 1-9 (2022)
This work presents the use of a directly modulated laser (DML) in time- and wavelength division multiplexed passive optical networks (TWDM-PONs), in which an EDFA-based booster amplification and an SOA-based pre-amplification are utilized to improve
Externí odkaz:
https://doaj.org/article/93fb0e328bc746ee86d46ec7bd5e2167
Autor:
Marcos Troncoso-Costas, Devika Dass, Colm Browning, Francisco J. Diaz-Otero, Chris G. H. Roeloffzen, Liam P. Barry
Publikováno v:
IEEE Photonics Journal, Vol 14, Iss 1, Pp 1-6 (2022)
Flexible Pulse Amplitude Modulation (FlexPAM) consists of the use of non-standard PAM formats, such as PAM-5 or PAM-6, to increase the granularity of the link capacity for a given baud rate. In this paper, we demonstrate FlexPAM systems as a scalable
Externí odkaz:
https://doaj.org/article/cf91862914a445bc9c1be8a2af530ef9
Autor:
Haizhong Weng, Adnan Ali Afridi, Jing Li, Michael McDermott, Huilan Tu, Liam P. Barry, Qiaoyin Lu, Weihua Guo, John F. Donegan
Publikováno v:
APL Photonics, Vol 7, Iss 7, Pp 079901-079901-1 (2022)
Externí odkaz:
https://doaj.org/article/f26ce2ef46ca49ad972496794273cdcb
Autor:
Haizhong Weng, Adnan Ali Afridi, Jing Li, Michael McDermott, Huilan Tu, Liam P. Barry, Qiaoyin Lu, Weihua Guo, John F. Donegan
Publikováno v:
APL Photonics, Vol 7, Iss 6, Pp 066103-066103-10 (2022)
The Kerr soliton frequency comb is a revolutionary compact ruler of coherent light that allows applications from precision metrology to quantum information technology. The universal, reliable, and low-cost soliton microcomb source is key to these app
Externí odkaz:
https://doaj.org/article/605246f8cb104a06a8895193e999769d
Publikováno v:
Journal of Lightwave Technology. 41:2343-2350
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09be334bbf976b73f696b4caee211202
https://doi.org/10.1109/jlt.2022.3230741
https://doi.org/10.1109/jlt.2022.3230741
Publikováno v:
Journal of Lightwave Technology. :1-9
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44c15f0590d94f40d99208b3b06e7ddb
https://doi.org/10.1109/jlt.2023.3278981
https://doi.org/10.1109/jlt.2023.3278981
Publikováno v:
APL Photonics, Vol 5, Iss 4, Pp 041301-041301-5 (2020)
We experimentally demonstrate the world’s first field-programmable gate-array-based real-time fiber nonlinearity compensator (NLC) using sparse K-means++ machine learning clustering in an energy-efficient 40-Gb/s 16-quadrature amplitude modulated s
Externí odkaz:
https://doaj.org/article/88913ce5b9bd42a2adac0a26e7040af0