188 citations · 191 across the 3 of their papers we have counts for
7 papers
Rapidly reconfigurable radio-frequency arbitrary waveforms synthesized on a CMOS photonic chip
Jian Wang, Hao Shen, Li Fan +9
Photonic methods of radio-frequency waveform generation and processing provide performance and flexibility over electronic methods due to the ultrawide bandwidth offered by the opt…
Drop-port study of microresonator frequency combs: power transfer and time-domain characterization
Pei-Hsun Wang, Yi Xuan, Li Fan +6
We use a drop-port geometry to study power transfer in silicon nitride on-chip microresonator frequency comb generators. In sharp contrast with the traditional transmission geometr…
A Silicon Optical Transistor
Leo T. Varghese, Li Fan, Jian Wang +5
A fundamental road block for all-optical information processing is the difficulty in realizing a silicon optical transistor with the ability to provide optical gain, input output i…
Spectral Line-by-Line Pulse Shaping of an On-Chip Microresonator Frequency Comb
Fahmida Ferdous, Houxun Miao, Daniel E. Leaird +5
We report, for the first time to the best of our knowledge, spectral phase characterization and line-by-line pulse shaping of an optical frequency comb generated by nonlinear wave…
A CMOS compatible microring-based on-chip isolator with 18dB optical isolation
Li Fan, Jian Wang, Hao Shen +4
We demonstrate strong optical nonreciprocity in microring add-drop filters with asymmetric input and output coupling coefficients. Up to 18dB isolation was achieved with a silicon-…
Eight-channel reconfigurable microring filters with tunable frequency, extinction ratio and bandwidth
Hao Shen, Maroof H. Khan, Li Fan +5
We demonstrate an eight-channel reconfigurable optical filter on a silicon chip consisting of cascaded microring resonators and integrated compact heaters. With an embedded Mach-Ze…