Self-equalizing photodiodes, a hybrid electro-optical approach to tackle bandwidth limitation in high-speed signaling

Abiri, Behrooz; Aflatouni, Firooz; Hajimiri, Ali

doi:10.1364/oe.25.019137

Cited by 2 publications

(1 citation statement)

References 13 publications

(15 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case, the group delay experienced by the input optical signal, modulated with a monocycle pulse with a bandwidth of 0.5-5GHz, can be tuned from 0 to 100ps equivalently delaying the detected UWB pulse. Such a tunable optical delay line has applications ranging from high speed equalization in photonic links [16] to optical coherence tomography [17] and photonic assisted beamformers [1,9,11].…”

Section: Introductionmentioning

confidence: 99%

Wideband Rapidly Tunable Delay-Controlled Optoelectronic Oscillator

Sanjari

Aflatouni

2020

IEEE Photonics J.

Self Cite

View full text Add to dashboard Cite

With the recent advancements in photonic integrated circuits, integrated RF photonics has increasingly been considered as a viable avenue to meet the demands of many emerging applications in telecommunication, sensing and signal processing. In this paper, an integrated, rapidly tunable, wideband optical delay line is used to implement an optoelectronic oscillator that can be continuously tuned from 594MHz to 634MHz. The oscillator exhibits a relatively flat modulation response at high frequencies (larger than 400MHz), accommodating wideband fast frequency chirp generation with applications in radar and imaging. The on-chip variable delay line is characterized by continuously delaying an ultra-wide band 0.5-5GHz monocycle pulse between 0-100ps. The photonic integrated chip consists of silicon nanowaveguides, phase modulators, multimode interference coupler, a Mach-Zehnder interferometer, and a photodiode. The chip is fabricated on IME 180nm Silicon Photonics platform and has an area of 0.55mm 2 .

show abstract