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Related Experiment Video

Updated: Nov 23, 2025

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping

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Published on: March 20, 2017

Omnidirectional Optical Crosslinks for CubeSats: Transmitter Optimization.

Imam Uz Zaman¹, Jose E Velazco², Ozdal Boyraz¹

¹Department of Electrical Engineering and Computer Science, The University of California, Irvine, CA 92697, USA.

IEEE Transactions on Aerospace and Electronic Systems

|January 4, 2021

Summary

This summary is machine-generated.

CubeSat swarms offer a cost-effective alternative for remote sensing. This study details design rules for high-speed, long-range (100+ km) communication between CubeSats, optimizing systems for size and power constraints.

Keywords:

CubeSat CubeSat telescope design Free-space optical communication Inter satellite communication Omnidirectional optical antenna Optical crosslink

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Last Updated: Nov 23, 2025

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Area of Science:

Space Engineering
Optical Communications
Remote Sensing

Background:

CubeSats present a cost-effective alternative to traditional satellite remote sensing.
Existing systems face limitations in speed, range, and cost for remote sensing applications.

Purpose of the Study:

To establish design and optimization rules for omnidirectional, high-speed, long-range (100+ km) data communication among CubeSats.
To address the constraints of CubeSat platforms, including size, weight, power, and cost, utilizing commercial-off-the-shelf components.

Main Methods:

Analytical studies of scanning mirror-based beam steering systems.
Analysis of scanning mirror step angle requirements and their relation to beam divergence, optics, and communication distance.
Optimization of transmit laser beam size considering divergence, clipping, and scattering.

Main Results:

Demonstrated relationships between scanning mirror step angle, beam divergence, optics dimensions, and communication efficiency.
Detailed study of transmit laser beam size optimization challenges.
Quantified the effects of laser peak power, initial beam size, and distance on communication beam width for sustained long-range links.

Conclusions:

Achieved design rules enable long-distance (100+ km) CubeSat communication.
Optimized systems maintain a signal-to-noise ratio (SNR) ≥ 10 dB at data rates > 500 Mb/s.
The findings support the viability of CubeSat swarms for advanced remote sensing.