Measurement of radiated electric field emissions above 1 GHz is required in the United States by the FCC and Bellcore.
Gain-switched semiconductor laser pulses at 1.3 and 1.5micron were measured both with a high-speed InGaAs PIN photodiode and an IR synchroscan streak camera.
We demonstrate an electro-optic sampling system for the characterization of very-high-speed, long wavelength photodetectors.
It is well known that certain bands in the microwave region are attenuated considerably due to absorption by water vapour and oxygen in the atmosphere.
Attenuation distortion is a basic measure of the quality of a transmission channel.
Fiber-optic technology has created the opportunity for the development of underwater communications cables which are much smaller than those used in the past.
To assess the threat of undersea cable failure due to abrasion caused by vortex-induced vibrations, a series of experiments were conducted in which a length of vertical cable with a clump weight at
We measured intermodulation distortion generated by the presence of two optical tones separated by up to 1 GHz in a 1.3micron near-travelling wave optical amplifier.
We demonstrate the reconstruction of constellation diagrams for 40-Gb/s DQPSK and 60-Gb/s 8ary- DPSK signals using orthogonal differential direct-detection and analog-to-digital conversion.
We demonstrate the reconstruction of constellation diagrams for 40-Gb/s DQPSK and 60-Gb/s 8ary-DPSK signals using orthogonal differential direct-detection and high-speed analog-to-digital conversio
