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Dr David Bramall's Outputs (4)

Overview of the Fiber System for the Dark Energy Spectroscopic Instrument (2024)
Journal Article
Poppett, C., Tyas, L., Aguilar, J., Bebek, C., Bramall, D., Claybaugh, T., Edelstein, J., Fagrelius, P., Heetderks, H., Jelinsky, P., Jelinsky, S., Lafever, R., Lambert, A., Lampton, M., Levi, M. E., Martini, P., Rockosi, C., Schmoll, J., Sharples, R. M., Sirk, M., …Zhou, R. (2024). Overview of the Fiber System for the Dark Energy Spectroscopic Instrument. Astronomical Journal, 168(6), Article 245. https://doi.org/10.3847/1538-3881/ad76a4

The Dark Energy Spectroscopic Instrument (DESI) is a revolutionary instrument designed for precise measurements of cosmic distances and the investigation of dark energy. DESI utilizes 5000 optical fibers to simultaneously measure the spectra of dista... Read More about Overview of the Fiber System for the Dark Energy Spectroscopic Instrument.

Overview of Space-Based Laser Communication Missions and Payloads: Insights from the Autonomous Laser Inter-Satellite Gigabit Network (ALIGN) (2024)
Journal Article
Younus, O. I., Riaz, A., Binns, R., Scullion, E., Wicks, R., Vernon, J., Graham, C., Bramall, D., Schmoll, J., & Bourgenot, C. (2024). Overview of Space-Based Laser Communication Missions and Payloads: Insights from the Autonomous Laser Inter-Satellite Gigabit Network (ALIGN). Aerospace, 11(11), Article 907. https://doi.org/10.3390/aerospace11110907

This paper examines the growing adoption of laser communication (lasercom) in space missions and payloads for identifying emerging trends and key technology drivers of future optical communications satellite systems. It also presents a comprehensive... Read More about Overview of Space-Based Laser Communication Missions and Payloads: Insights from the Autonomous Laser Inter-Satellite Gigabit Network (ALIGN).

Steering Mirror System with Closed-Loop Feedback for Free-Space Optical Communication Terminals (2024)
Journal Article
Graham, C., Bramall, D., Younus, O., Riaz, A., Binns, R., Scullion, E., Wicks, R. T., & Bourgenot, C. (2024). Steering Mirror System with Closed-Loop Feedback for Free-Space Optical Communication Terminals. Aerospace, 11(5), Article 330. https://doi.org/10.3390/aerospace11050330

Precision beam pointing plays a critical role in free-space optical communications terminals in uplink, downlink and inter-satellite link scenarios. Among the various methods of beam steering, the use of fast steering mirrors (FSM) is widely adopted,... Read More about Steering Mirror System with Closed-Loop Feedback for Free-Space Optical Communication Terminals.

Topology Optimization of a Single-Point Diamond-Turning Fixture for a Deployable Primary Mirror Telescope (2024)
Journal Article
Bourgenot, C., Krumins, V., Bramall, D. G., & Haque, A. M. (2024). Topology Optimization of a Single-Point Diamond-Turning Fixture for a Deployable Primary Mirror Telescope. Aerospace, 11(1), Article 50. https://doi.org/10.3390/aerospace11010050

CubeSats, known for their compact size and cost effectiveness, have gained significant popularity. However, their limited size imposes restrictions on the optical aperture and, consequently, the Ground Resolution Distance in Earth Observation mission... Read More about Topology Optimization of a Single-Point Diamond-Turning Fixture for a Deployable Primary Mirror Telescope.