A Scanning Fabry-Perot Interferometer for Red-Yellow HeNe Lasers

Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Producer
Director
Performer
Choreographer
Costume Designer
Music
Videographer
Lighting Designer
Set Designer
Crew Member
Funder
Rehearsal Director
Concert Coordinator
Moderator
Panelist
Alternative Title
Department
Swarthmore College. Dept. of Engineering
Type
Original Format
Running Time
File Format
Place of Publication
Date Span
Copyright Date
Award
Language
en
Note
Table of Contents
Terms of Use
Full copyright to this work is retained by the student author. It may only be used for non-commercial, research, and educational purposes. All other uses are restricted.
Rights Holder
Access Restrictions
No restrictions
Terms of Use
Tripod URL
Identifier
Abstract
This project yielded a functional Scanning Fabry-Perot Interferometer (SFPI), which is a critical device for measuring the wavelengths of propagating light and their respective optical power. Specifically, this SFPI model measures optical power for the red, orange, and yellow wavelengths of visible light (594-633 nm). After creating the SFPI, a mount, and a circuit for photodetection, testing with a multi-mode helium-neon laser proved the custom SFPI’s functionality with estimated cavity length errors of 0.01 mm. With a cavity length of the radius of curvature, 43.22 mm, the free spectral range was 1.73 GHz with a maximum finesse of 151. With a cavity length of 21.6 mm, the free spectral range was 3.47 GHz with a maximum finesse of 86. This success inspired consideration and research of future work, including incorporating both dual polarization functionality and a Mini Laser Mode Analyzer (mLMA).
Description
Subjects
Citation
Collections