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Start Over Author "Shuoqin Wang" Journal ieee photonics technology letters
2 results on '"Shuoqin Wang"'

1. Demonstration of all-optical true-time delay for a multiaperture free-space laser-communication transmitter using a rapidly programmable 8-bit chip-scale module

Author

D.S. Sumida, D.M. Pepper, and Shuoqin Wang

Subjects
Physics, business.industry, 8-bit, Optical communication, Pulse duration, Chip, Laser, True time delay, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, law.invention, Switching time, Optics, law, Electrical and Electronic Engineering, business, Free-space optical communication
Abstract

Planar beam-steering apertures for laser-transmitter applications require a true-time-delay (TTD) subsystem for enhanced data-rate performance. The requirements for such a subsystem depend on the overall aperture size, field-of-view, beam-steering switching speed, and data pulse duration. The reprogramming speed of this 8-bit module (1-ps minimum resolvable time increment, and 0-256-ps range) is measured to be /spl sim/400 /spl mu/s, and the upper limit of the dispersion produced by the device is measured to be 0.125 ps/cm/spl middot/nm. Using a TTD chip-scale module for temporal simultaneity, a demonstration of free-space 1.55-/spl mu/m beam-steering over /spl plusmn/30/spl deg/ field-of-view is reported, wherein 2-ps-long laser pulses are emitted from two subapertures.

Published
2005
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2. Demonstration of all-optical true-time delay for a multiaperture free-space laser-communication transmitter using a rapidly programmable 8-bit chip-scale module.

Author

Shuoqin Wang, Pepper, D.M., and Sumida, D.S.

Abstract

Planar beam-steering apertures for laser-transmitter applications require a true-time-delay (TTD) subsystem for enhanced data-rate performance. The requirements for such a subsystem depend on the overall aperture size, field-of-view, beam-steering switching speed, and data pulse duration. The reprogramming speed of this 8-bit module (1-ps minimum resolvable time increment, and 0-256-ps range) is measured to be ∼400 μs, and the upper limit of the dispersion produced by the device is measured to be 0.125 ps/cm·nm. Using a TTD chip-scale module for temporal simultaneity, a demonstration of free-space 1.55-μm beam-steering over ±30° field-of-view is reported, wherein 2-ps-long laser pulses are emitted from two subapertures. [ABSTRACT FROM PUBLISHER]

Published
2005
Full Text
View/download PDF

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