Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Laser communication systems."”.
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Optomechanical and wavelength alignments of CubeSat laser communication Systems
… space missions more quickly at lower costs, the communication subsystems of the platform are limited by a heavily regulated and overcrowded RF spectrum. Scientific instruments with increasing capabilities on CubeSats are generating massive amounts of data and are quickly pushing the boundaries of …
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High-order compensation of self-phase modulation in laser communication systems
… that reduces signal-to-noise ratio in free-space laser communication systems which use a fiber to connect their transmitter's high-power optical amplifier to its telescope optics. The effects of SPM can be mitigated by using a phase modulator to down-chirp pulses before passing through the …
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A software-defined receiver for laser communications using a GPU
Laser commiunication systems provide a high data rate, power efficient communication solution for small satellites and deep space missions. One challenge that limits the widespread use of laser communication systems is the lack of accessible, low-complexity receiver electronics and software …
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Capacity of and coding for multiple-aperture, wireless, optical communications
… causes random power fluctuations in optical communication systems, making communication through the atmosphere difficult. This same phenomenon makes the stars twinkle at night, and pavement shimmer on a hot summer day. True to the old adage, "don't put all your eggs in one basket," we examine …
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Multiple Simultaneous Optical Links for Space-Based Platforms
Space-based Free Space Optical Communications (FSOC), or lasercom, offers key advantages over Radio Frequency (RF) communications in bandwidth, Size, Weight, and Power savings, and unregulated spectrum. Theoretical and demonstrated lasercom systems have shown higher data rates for similar or equal …
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Liquid Crystal Optics For Communications, Signal Processing And 3-d Microscopic Imaging
… signal processing, freespace and fiber optic communications and microscopic imaging. These include free-space optical scanners for military and optical wireless applications, variable fiber-optic attenuators for optical communications, photonic control techniques for phased array antennas and …