K
Keyvan Sayyah
Researcher at General Motors
Publications - 63
Citations - 890
Keyvan Sayyah is an academic researcher from General Motors. The author has contributed to research in topics: Laser & Signal. The author has an hindex of 16, co-authored 62 publications receiving 869 citations. Previous affiliations of Keyvan Sayyah include HRL Laboratories.
Papers
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Patent
Method and apparatus for waveform generation
Daniel Yap,Keyvan Sayyah +1 more
TL;DR: In this article, a spread spectrum waveform generator has a photonic oscillator and an optical heterodyne synthesizer, where the first laser feeds the multi-tone optical comb generator and the second laser is a single tone laser whose output light provides a frequency translation reference.
Patent
Single chip scanning lidar and method of producing the same
TL;DR: In this paper, a chip-scale scanning lidar includes a two-dimensional scanning micromirror for a transmit beam and a 2D scanning micro-drone for a receive beam, a laser diode and a photodetector.
Patent
Agile RF-lightwave waveform synthesis and an optical multi-tone amplitude modulator
Daniel Yap,Keyvan Sayyah +1 more
TL;DR: In this article, a waveform synthesizer comprising for synthesizing RF lightwave waveforms in the optical domain is presented, which includes a RF-lightwave frequency-comb generator and a multi-tone, frequency selective amplitude modulator coupled to the generator for generating a continuous wave comb comprising a set of RF tones amplitude modulated onto a lightwave carrier.
Patent
Method for transferring semiconductor device layers to different substrates
TL;DR: In this paper, a method for transferring layers containing semiconductor devices and/or circuits to substrates other than those on which they have been originally fabricated is presented. But the method is not suitable for the use of a disk-shaped water-soluble structure instead of the perforated structure.
Patent
Injection-seeding of a multi-tone photonic oscillator
Keyvan Sayyah,Daniel Yap +1 more
TL;DR: In this paper, a multi-tone photonic oscillator consisting of a laser, an optical modulator coupled to the laser, and a delay line is used for generating a delayed electrical signal representation of the output of the optical modulators, where the frequency intervals of the tones are a function of the amount of delay imposed by the delay line.