High precision sensor probe for beam-tilt alignment based on a quadrant photodetector

Brady Shearan; John Fiander; Douglas Little; Subhas Mukhopadhyay

doi:10.1109/ICST59744.2023.10460829

High precision sensor probe for beam-tilt alignment based on a quadrant photodetector

Brady Shearan^*, John Fiander, Douglas Little, Subhas Mukhopadhyay

^*Corresponding author for this work

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

1 Citation (Scopus)

Abstract

This paper describes the development of a laser beam positioning sensor based on a quadrant photodetector. The sensor was a critical component of a wider alignment system. It was developed to meet the stringent 45 μrad precision requirement for the orientation of the optical interferometry cavity for the length measurement in the new calculable cross-capacitor at the National Measurement Institute, Australia. This system has been used to align the optical cavity to the capacitor's axis to within 110 μrad, which is corrected for, with an uncertainty of 6 μrad, well within the required precision.

Original language	English
Title of host publication	2023 16th International Conference on Sensing Technology (ICST)
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	5
ISBN (Electronic)	9798350395341
ISBN (Print)	9798350395358
DOIs	https://doi.org/10.1109/ICST59744.2023.10460829
Publication status	Published - 2023
Event	16th International Conference on Sensing Technology, ICST 2023 - Hyderabad, India Duration: 17 Dec 2023 → 20 Dec 2023

Conference

Conference	16th International Conference on Sensing Technology, ICST 2023
Country/Territory	India
City	Hyderabad
Period	17/12/23 → 20/12/23

Keywords

Sensors
Interferometry
Length measurement
Photodetectors
Optical signal detection
Capacitors
Metrology

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10.1109/ICST59744.2023.10460829

Cite this

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title = "High precision sensor probe for beam-tilt alignment based on a quadrant photodetector",

abstract = "This paper describes the development of a laser beam positioning sensor based on a quadrant photodetector. The sensor was a critical component of a wider alignment system. It was developed to meet the stringent 45 μrad precision requirement for the orientation of the optical interferometry cavity for the length measurement in the new calculable cross-capacitor at the National Measurement Institute, Australia. This system has been used to align the optical cavity to the capacitor's axis to within 110 μrad, which is corrected for, with an uncertainty of 6 μrad, well within the required precision.",

keywords = "Sensors, Interferometry, Length measurement, Photodetectors, Optical signal detection, Capacitors, Metrology",

author = "Brady Shearan and John Fiander and Douglas Little and Subhas Mukhopadhyay",

year = "2023",

doi = "10.1109/ICST59744.2023.10460829",

language = "English",

isbn = "9798350395358",

booktitle = "2023 16th International Conference on Sensing Technology (ICST)",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "16th International Conference on Sensing Technology, ICST 2023 ; Conference date: 17-12-2023 Through 20-12-2023",

}

Shearan, B, Fiander, J, Little, D & Mukhopadhyay, S 2023, High precision sensor probe for beam-tilt alignment based on a quadrant photodetector. in 2023 16th International Conference on Sensing Technology (ICST). Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, 16th International Conference on Sensing Technology, ICST 2023, Hyderabad, India, 17/12/23. https://doi.org/10.1109/ICST59744.2023.10460829

High precision sensor probe for beam-tilt alignment based on a quadrant photodetector. / Shearan, Brady; Fiander, John; Little, Douglas et al.
2023 16th International Conference on Sensing Technology (ICST). Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2023.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - High precision sensor probe for beam-tilt alignment based on a quadrant photodetector

AU - Shearan, Brady

AU - Fiander, John

AU - Little, Douglas

AU - Mukhopadhyay, Subhas

PY - 2023

Y1 - 2023

N2 - This paper describes the development of a laser beam positioning sensor based on a quadrant photodetector. The sensor was a critical component of a wider alignment system. It was developed to meet the stringent 45 μrad precision requirement for the orientation of the optical interferometry cavity for the length measurement in the new calculable cross-capacitor at the National Measurement Institute, Australia. This system has been used to align the optical cavity to the capacitor's axis to within 110 μrad, which is corrected for, with an uncertainty of 6 μrad, well within the required precision.

AB - This paper describes the development of a laser beam positioning sensor based on a quadrant photodetector. The sensor was a critical component of a wider alignment system. It was developed to meet the stringent 45 μrad precision requirement for the orientation of the optical interferometry cavity for the length measurement in the new calculable cross-capacitor at the National Measurement Institute, Australia. This system has been used to align the optical cavity to the capacitor's axis to within 110 μrad, which is corrected for, with an uncertainty of 6 μrad, well within the required precision.

KW - Sensors

KW - Interferometry

KW - Length measurement

KW - Photodetectors

KW - Optical signal detection

KW - Capacitors

KW - Metrology

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DO - 10.1109/ICST59744.2023.10460829

M3 - Conference proceeding contribution

AN - SCOPUS:85189296486

SN - 9798350395358

BT - 2023 16th International Conference on Sensing Technology (ICST)

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - 16th International Conference on Sensing Technology, ICST 2023

Y2 - 17 December 2023 through 20 December 2023

ER -

High precision sensor probe for beam-tilt alignment based on a quadrant photodetector

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Keywords

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