5 citations · 5 across the 5 of their papers we have counts for
5 papers
Dispersion Control in Micromechanical Evanescent Optical Modulators
Karl Johnson, John Hong, Tallis Chang +8
Efficient, low-loss, and versatile optical modulators are a critical ingredient for practical integrated photonic systems. Modulators based on micro-electromechanical systems (MEMS…
Interferometric modal splitting enables a broadband, dual-polarization on-chip spectrometer
Karl Johnson, Vladimir Fedorov, Dmitrii Belogolovskii +3
The modal dispersion of waveguides often limits integrated photonic devices to operation with a single polarization state. This presents a challenge for sensing and spectroscopy ap…
Large Bidirectional Refractive Index Change in Silicon-rich Nitride via Visible Light Trimming
Dmitrii Belogolovskii, Md Masudur Rahman, Karl Johnson +6
Phase-sensitive integrated photonic devices are highly susceptible to minor manufacturing deviations, resulting in significant performance inconsistencies. This variability has lim…
Micro-Ring Modulator Linearity Enhancement for Analog and Digital Optical Links
Sumilak Chaudhury, Karl Johnson, Chengkuan Gao +3
An energy/area-efficient low-cost broadband linearity enhancement technique for electro-optic micro-ring modulators (MRM) is proposed to achieve 6.1-dB dynamic linearity improvemen…
Information Processing in Hybrid Photonic Electrical Reservoir Computing
Prabhav Gaur, Chengkuan Gao, Karl Johnson +3
Physical Reservoir Computing (PRC) is a recently developed variant of Neuromorphic Computing, where a pertinent physical system effectively projects information encoded in the inpu…