566 citations · 1.2k across the 14 of their papers we have counts for
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Modelocking and Femtosecond Pulse Generation in Chip-Based Frequency Combs
Kasturi Saha, Yoshitomo Okawachi, Bonggu Shim +7
Development of ultrashort pulse sources has had an immense impact on condensed-matter physics, biomedical imaging, high-field physics, frequency metrology, telecommunications, nonl…
Octave-spanning frequency comb generation in a silicon nitride chip
Yoshitomo Okawachi, Kasturi Saha, Jacob S. Levy +3
We demonstrate a frequency comb spanning an octave via the parametric process of cascaded four-wave mixing in a monolithic, high-Q silicon nitride microring resonator. The comb is…
High-Performance Silicon-Based Multiple Wavelength Source
Jacob S. Levy, Kasturi Saha, Yoshitomo Okawachi +3
We demonstrate a stable CMOS-compatible on-chip multiple-wavelength source by filtering and modulating individual lines from a frequency comb generated by a microring resonator opt…
A Silicon-Based Monolithic Optical Frequency Comb Source
Mark A. Foster, Jacob S. Levy, Onur Kuzucu +3
Recently developed techniques for generating precisely equidistant optical frequencies over broad wavelength ranges are revolutionizing precision physical measurement [1-3]. These…
Enhanced Two-Photon Absorption in a Hollow-Core Photonic Bandgap Fiber
Kasturi Saha, Vivek Venkataraman, Pablo Londero +1
We show that two-photon absorption (TPA) in Rubidium atoms can be greatly enhanced by the use of a hollow-core photonic bandgap fiber. We investigate off-resonant, degenerate Doppl…