# Conference Agenda

Topical Meetings and Sessions:

TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and applications
TOM 7 - Thermal radiation and energy management
TOM 8 - Non-linear and Quantum Optics
TOM 9 - Opto-electronic Nanotechnologies and Complex Systems
TOM 10 - Frontiers in Optical Metrology
TOM 11 - Tapered optical fibers, from fundamental to applications
TOM 12 - Optofluidics
TOM 13 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session

Select a date or location to show only sessions at that day or location. Select a single session for a detailed view (with abstracts and downloads when you are logged in as a registered attendee). The rest of the TOM sessions, EU project session, tutorials, and Early Stage Researcher session will be updated soon. Thank you for your patience!

Please note that all times are shown in the time zone of the conference. The current conference time is: 18th Aug 2022, 06:34:48pm WEST

 Session Overview
Session
TOM13 S05: Advances and Applications of Optics and Photonics
 Time: Wednesday, 14/Sept/2022: 2:30pm - 4:00pm Location: Room 1

Presentations
2:30pm - 2:45pm
ID: 141 / TOM13 S05: 1
TOM 13 Advances and Applications of Optics and Photonics

Spectral scaling transformations of nonstationary light

Jyrki Laatikainen1, Matias Koivurova2, Jari Turunen1, Tero Setälä1, Ari T. Friberg1

1University of Eastern Finland, Finland; 2Tampere University, Finland

We present optical systems, which transform isodiffracting nonstationary beams into fields obeying either cross-spectral purity or spectral invariance. The designs are hybrid refractive-diffractive imaging systems, which are able to perform the desired transformations over a broad spectral bandwidth and irrespective of the state of spatial coherence of the input beam.

2:45pm - 3:00pm
ID: 206 / TOM13 S05: 2
TOM 13 Advances and Applications of Optics and Photonics

Cross-spectral purity for nonstationary optical fields

Meilan Luo1,2, Jyrki Laatikainen1, Atri Halder1, Matias Koivurova3, Tero Setälä1, Jari Turunen1, Ari T. Friberg1

1University of Eastern Finland, Finland; 2Hunan Normal University, China; 3Tampere University, Finland

We derive an extended reduction formula for the time-integrated coherence function starting from the cross-spectral purity conditions for nonstationary optical fields. Two types of separable cross-spectral density functions that ensure cross-spectral purity are introduced and their implications are discussed.

3:00pm - 3:15pm
ID: 137 / TOM13 S05: 3
TOM 13 Advances and Applications of Optics and Photonics

Elliptical cladding elements in negative curvature hollow-core fiber for low-loss terahertz guidance

Asfandyar Khan, Mustafa Ordu

UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Turkey

Optical losses of ellipse-nested elliptical negative curvature hollow-core fibers are numerically presented for the terahertz region. Primary design parameters of all fibers were iteratively optimized and confinement and total losses as low as 2.79×10-5 dB/m and 0.015 dB/m were achieved at 0.55 THz, respectively. Single-mode light guidance of the proposed design was investigated and a higher-order mode extinction ratio of around 3000 was calculated.

3:15pm - 3:30pm
ID: 177 / TOM13 S05: 4
TOM 13 Advances and Applications of Optics and Photonics

3D printed hollow-core polymer optical fiber with six-pointed star cladding for the light guidance in near-IR regime

Mahmudur Rahman1, Ceren Dilsiz1,2, Mustafa Ordu1

1UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Turkey; 2Department of Electrical and Electronics Engineering, Ankara University, Gölbaşı, Ankara 06830, Turkey

Polymer optical fibers have great significance due to the wide range of applications, such as data transmission, sensing and illumination. In this study, we proposed a novel hollow-core polymer optical fiber fabricated by a commercially available 3D printer with guiding properties in the near-infrared region. The fiber was drawn conventionally using thermal drawing tower from a 3D printed preform. Light is guided through the air core surrounded by six-pointed star cladding tubes. Measured transmission losses of as low as 0.33 dB/cm was achieved in the near-infrared region.

3:30pm - 3:45pm
ID: 182 / TOM13 S05: 5
TOM 13 Advances and Applications of Optics and Photonics

Hybrid cladding designs in chalcogenide negative curvature hollow-core fibers

Asfandyar Khan, Mustafa Ordu

UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, Cankaya, Ankara 06800, Turkey

Ellipse-nested tubular As2Se3 chalcogenide negative curvature hollow-core fibers are numerically presented for the mid-infrared region. Confinement and total losses are calculated as low as 0.38 dB/km and 4.66 dB/km at 10.6 µm, respectively. A further investigation on the fundamental and higher order modes showed that the proposed fiber favors the single-mode guidance.

3:45pm - 4:00pm
ID: 219 / TOM13 S05: 6
TOM 13 Advances and Applications of Optics and Photonics

A φ-Shaped Bending-Optical Fiber Sensor for the Measurement of Radial variation in Cylindrical Structures

Victor Henrique Rodrigues Cardoso1,4, Paulo Caldas4,5, M. Thereza R. Giraldi2, Orlando Frazão3,4, João Weyl Costa1, José L. Santos3,4

1Federal University of Pará, Applied Electromagnetism Laboratory, Rua Augusto Corrêa, 01, 66075-110, Belém, Pará, Brazil; 2Military Institute of Engineering, Laboratory of Photonics, Praça Gen. Tibúrcio, 80,22290-270, Rio de Janeiro, Brazil; 3Department of Physics and Astronomy, Faculty of Sciences of University of Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; 4nstitute for Systems and Computer Engineering, Technology and Science, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal; 5Polytechnic Institute of Viana do Castelo, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347, Viana do Castelo, Portugal

This work presents preliminary results of the $\phi$ -shaped sensor mounted on support designed by additive manufacturing (AM). This sensor is proposed and experimentally demonstrated to measure the radial variation of cylindrical structures. The sensor presents an easy fabrication. The support was developed to work using the principle of leverage. The sensing head is curled between two points so that the dimension associated with the macro bend is changed when there is a radial variation. The results indicate that the proposed sensor structure can monitor radial variation in applications such as pipelines and trees.

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