BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:US/Eastern BEGIN:DAYLIGHT DTSTART:20210314T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20211107T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20220316T122227Z UID:B653EAB9-65A9-488B-B0CF-E40A6FB6ED0F DTSTART;TZID=US/Eastern:20211104T140000 DTEND;TZID=US/Eastern:20211104T154500 DESCRIPTION:This is an invited talk by Prof. Alan Willner on "optical commu nications: innovations and applications abound".\n\nOptical communications has enjoyed tremendous impact over the past 50 years. Relatively soon aft er the concrete proposal of optical fiber communications was reported and the low-loss fiber invented\, fiber-based communications dramatically impa cted the way society transfers information. However\, there are other key areas beyond fiber-based communications that were also envisioned ~50 year s ago but are only recently emerging. Such emergence is due to enhanced ca pacity needs and critical innovations\, including advances in photonic int egrated circuits (PICs). This seminar will highlight 3 examples of the inn ovations and emerging applications of optical communications.\n\n- Free-sp ace optical communications: As opposed to RF\, optical links have high dir ectionality and large bandwidth. There is great excitement in the recent e mergence of deployed free-space optical links\, be they through air or out er-space. Moreover\, due to the extremely high losses of RF\, even underwa ter links in the blue-green are gaining significant interest. Also to be d iscussed is capacity enhancement using multiplexing of multiple orbital-an gular-momentum beams.\n- Non-conventional wavelengths: Fiber systems are o verwhelmingly in the near-IR\, whereas free-space links can take advantage of a much wider frequency range\, from THz to visible. Such systems may u tilize: (a) native high-speed components\, and/or (b) wavelength-band conv ersion of near-IR channels to other frequencies.\n\n3. Optical signal proc essing (OSP): OSP has long held the promise of high-speed operation and th e avoidance of inefficient optical-electrical-optical conversion. Although OSP deployment has been limited\, advances in PICs\, power efficiency and multi-wavelength operation may soon enable the emergence of OSP for high- performance functions\n\nThis interesting talk is held virtually and is ac cessible via the Zoom link provided by the Université Laval. It is organi zed by IEEE photonics society for graduate students at the Centre for Opti cs\, Photonics and Lasers (COPL)\, Université Laval\, Quebec City\, QC\, Canada.\n\nSpeaker(s): Alan E. Willner\, \n\nBldg: Pavillon d'Optique-pho tonique\, 2375 De la Terrasse St\, Quebec city\, Quebec\, Canada\, G1V 0A6 \, Virtual: https://events.vtools.ieee.org/m/287278 LOCATION:Bldg: Pavillon d'Optique-photonique\, 2375 De la Terrasse St\, Qu ebec city\, Quebec\, Canada\, G1V 0A6\, Virtual: https://events.vtools.iee e.org/m/287278 ORGANIZER:rizan.homayoun-nejad.1@ulaval.ca SEQUENCE:3 SUMMARY:Optical Communications: Innovations and Applications Abound URL;VALUE=URI:https://events.vtools.ieee.org/m/287278 X-ALT-DESC:Description: <br /><p>This is an invited talk by Prof. Alan Will ner on "optical communications: innovations and applications abound".</p>\ n<p>Optical communications has enjoyed tremendous impact over the past 50 years. Relatively soon after the concrete proposal of optical fiber commun ications was reported and the low-loss fiber invented\, fiber-based commun ications dramatically impacted the way society transfers information. Howe ver\, there are other key areas beyond fiber-based communications that wer e also envisioned ~50 years ago but are only recently emerging. Such emerg ence is due to enhanced capacity needs and critical innovations\, includin g advances in photonic integrated circuits (PICs). This seminar will highl ight 3 examples of the innovations and emerging applications of optical co mmunications.</p>\n<ol>\n<li>Free-space optical communications: As opposed to RF\, optical links have high directionality and large bandwidth. There is great excitement in the recent emergence of deployed free-space optica l links\, be they through air or outer-space. Moreover\, due to the extrem ely high losses of RF\, even underwater links in the blue-green are gainin g significant interest. Also to be discussed is capacity enhancement using multiplexing of multiple orbital-angular-momentum beams.</li>\n<li>Non-co nventional wavelengths: Fiber systems are overwhelmingly in the near-IR\, whereas free-space links can take advantage of a much wider frequency rang e\, from THz to visible. Such systems may utilize: (a) native high-speed c omponents\, and/or (b) wavelength-band conversion of near-IR channels to o ther frequencies.</li>\n</ol>\n<p>&nbsp\;&nbsp\;&nbsp\;&nbsp\; 3. Optical signal processing (OSP): OSP has long held the promise of high-speed opera tion and the avoidance of inefficient optical-electrical-optical conversio n. Although OSP deployment has been limited\, advances in PICs\, power eff iciency and multi-wavelength operation may soon enable the emergence of OS P for high-performance functions</p>\n<p>This interesting talk is held vir tually and is accessible via the Zoom link provided by the Universit&eacut e\; Laval. It is organized by IEEE photonics society for graduate students at the Centre for Optics\, Photonics and Lasers (<em>COPL</em>)\, Univers it&eacute\; Laval\, Quebec City\, QC\, Canada.&nbsp\;</p> END:VEVENT END:VCALENDAR