Astrophotonics
Worked as Post Doctoral Fellow in Prof Lucas Labaide’s group for the NAIR project from October 2018 2020 to June 2021 at the 1st Physics institute of the University of Cologne, Cologne, Germany. Below is the lists of tasks i was involved in: –
- Designing asymmetric couplers using RSoft BeamProp software.
- Preparing the K- band and L-band Michelson interferometer setup for characterizing the astrophotonic chips.
- Characterizing the bandpass filters using the developed setup.
- Designing the optical setup for “Fist On-Sky experiment with DBC at the William Herschel telescope” using Zemax Optics Studio.
- Preparing the lab setup for the above-mentioned experiment at the AIP Potsdam with partners.
- Characterizing the Symmetric couplers for the CHARA experiment run. These couplers were developed using Ultrafast laser Inscription at Herriot Watt University, UK.
See the images and the publication list below for more information on the project.
Lab setup for the "First on-sky experiment with DBC on WIlliam Herschel Telescope" showing deformable mirror and the micro lenslet array at AIP Potsdam.
Click on the Publication links below for more details: –
- Jacopo Siliprandi et al., “Fiber-connectorized ultrafast-laser-inscribed K-band integrated optics beam combiner for the CHARA telescope array,” Applied Optics 63, 159-166 (2024).
- Abani Shankar Nayak, Lucas Labadie, Tarun Kumar Sharma, Simone Piacentini, Giacomo Corrielli, Roberto Osellame, ´Eric Gendron, Jean-Tristan M. Buey, Fanny Chemla, Mathieu Cohen, Nazim A. Bharmal, Lisa F. Bardou, Lazar Staykov, James Osborn, Timothy J. Morris, Ettore Pedretti, Aline N. Dinkelaker, Kalaga V. Madhav, and Martin M. Roth, “First stellar photons for an integrated optics discrete beam combiner at the William Herschel Telescope,” Appl. Opt. 60, D129-D142 (2021).
- Aur´elien Benoˆıt, Fraser A. Pike, Tarun K. Sharma, David G. MacLachlan, Aline N. Dinkelaker, Abani S. Nayak, Kalaga Madhav, Martin M. Roth, Lucas Labadie, Ettore Pedretti, Theo A. ten Brummelaar, Nic Scott, Vincent Coud´e du Foresto, and Robert R. Thomson, “Ultrafast laser inscription of asymmetric integrated waveguide 3 dB couplers for astronomical K-band interferometry at the CHARA array,” J. Opt. Soc. Am. B 38, 2455-2464 (2021).
- Abani Shankar Nayak, Thomas Poletti, Tarun Kumar Sharma, Kalaga Madhav, Ettore Pedretti, Lucas Labadie, and Martin M. Roth, “Chromatic response of a four-telescope integrated-optics discrete beam combiner at the astronomical L band,” Opt. Express 28, 34346-34361 (2020).
- Aur´elien Benoˆıt et al., “Development of a Fiber Connectorized Ultrafast Laser Inscribed 2-Telescope Beam Combiner for the CHARA Telescope Array”, 2023 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, pp. 1-1 (2023).
- Abani Shankar Nayak, Lucas Labadie, Tarun K. Sharma, Simone Piacentini, Giacomo Corrielli, Roberto Osellame, Ettore Pedretti, Aline N. Dinkelaker, Eloy Hernandez, Kalaga V. Madhav, and Martin M. Roth “On-sky experiment of the discrete beam combiner: lessons learned and strategies for improved calibration of the transfer function”, Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 121832H (26 August 2022).
- Jacopo Siliprandi, David G. MacLachlan, Calum A. Ross, Tarun K. Sharma, Lucas Labadie, Kalaga Madhav, Abani S. Nayak, Aline N. Dinkelaker, Martin M. Roth, Ettore Pedretti, Theo A. ten Brummelaar, Nicholas J. Scott, Vincent Coud´e du Foresto, Robert R. Thomson, and Aur´elien Benoˆıt “Ultrafast laser inscription of integrated optics 2-telescope beam combiners for K-band interferometry at the CHARA array”, Proc. SPIE 12183, Optical and Infrared Interferometry and Imaging VIII, 1218314 (26 August 2022).
- Abani Shankar Nayak, Tarun Kumar Sharma, Lucas Labadie, Simone Piacentini, Giacomo Corrielli, Roberto Osellame, ´Eric Gendron, Jean-Tristan M. Buey, Fanny Chemla, Mathieu Cohen, Nazim A. Bharmal, Lisa F. Bardou, Lazar Staykov, James Osborn, Timothy J. Morris, Ettore Pedretti, Aline N. Dinkelaker, Kalaga V. Madhav, and Martin M. Roth ”First on-sky results with an interferometric discrete beam combiner (DBC) at the William Herschel Telescope”, Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 114461D (13 December 2020).
- Tarun Kumar Sharma, Lucas Labadie, Dominik Strixner, Simon Gross, Thomas Gretzinger, Sascha Quanz, Denis Defr`ere, Sanny Ahmed, and Michael J. Withford ”Towards the development of mid-infrared integrated optics in the renewed context of high-contrast interferometry”, Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 1144618 (13 December 2020).
- Fraser A. Pike, Tarun K. Sharma, Aur´elien Benoˆıt, David G. MacLachlan, Aline N. Dinkelaker, Abani S. Nayak, Kalaga Madhav, Martin M. Roth, Lucas Labadie, Ettore Pedretti, Theo A. ten Brummelaar, Nicholas J. Scott, Vincent Coud´e du Foresto, and Robert R. Thomson ”K-band integrated optics beam combiners for CHARA fabricated by ultrafast laser inscription”, Proc. SPIE 11446, Optical and Infrared Interferometry and Imaging VII, 114460K (13 December 2020).
- Robert J. Harris, Tarun Kumar Sharma, John J. Davenport, Philipp Hottinger, Theodoros Anagnos, Abani Shankar Nayak, Andreas Quirrenbach,
Lucas Labadie, Kalaga V. Madhav, and Martin M. Roth ”NAIR: Novel Astronomical Instrumentation through photonic Reformatting”, Proc. SPIE
11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV, 1145108 (13 December 2020). - Simone Piacentini, Giacomo Corrielli, Abani Shankar Nayak, Tarun Kumar Sharma, Kalaga V. Madhav, Ettore Pedretti, Stefano Minardi, Lucas Labadie, and Roberto Osellame ”Integrated discrete beam combiner with a pupil remapper for stellar interferometry (Conference Presentation)”, Proc. SPIE 11287, Photonic Instrumentation Engineering VII, 112870B (9 March 2020).
- Simone Piacentini, Giacomo Corrielli, Abani Shankar Nayak, Tarun Kumar Sharma, Kalaga V. Madhav, Andrea Adami, Ettore Pedretti, Stefano Minardi, Lucas Labadie, and Roberto Osellame ”Femtosecond laser writing of 3D polarization insensitive integrated devices for astrophotonics (Conference Presentation)”, Proc. SPIE 11270, Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XX, 112700S (9 March 2020).
- Abani Shankar Nayak, Simone Piacentini, Tarun Kumar Sharma, Giacomo Corrielli, Roberto Osellame, Lucas Labadie, Stefano Minardi, Ettore Pedretti, Kalaga Madhav, and Martin M. Roth ”Integrated optics-interferometry using pupil remapping and beam combination at astronomical H-band”, Proc. SPIE 11203, Advances in Optical Astronomical Instrumentation 2019, 112030V (3 January 2020).