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Mamyshev Oscillator

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Chip-scale ultrafast laser breakthrough could bring lab-grade power to handheld devices
technology2 hours ago

Chip-scale ultrafast laser breakthrough could bring lab-grade power to handheld devices

Scientists demonstrated a Mamyshev-oscillator-based ultrafast laser on a photonic chip, producing 1.05 nanojoules in 147-femtosecond bursts on a chip compact enough to fold from a long laser cavity, potentially enabling portable, cost-effective imaging, diagnostics, and timing applications by leveraging silicon-photonic fabrication.

Chip-scale Mamyshev oscillator delivers nanojoule ultrafast pulses on silicon nitride
technology26 days ago

Chip-scale Mamyshev oscillator delivers nanojoule ultrafast pulses on silicon nitride

Researchers demonstrate a photonic integrated, erbium-ion-implanted Mamyshev oscillator on silicon nitride that produces a 176‑MHz train of nanojoule pulses without external seeding, which can be linearly compressed to 147 fs and directly generate a 1.5‑octave supercontinuum in a Si3N4 waveguide; the same source enables THz time-domain spectroscopy with 5 THz bandwidth and 90‑dB dynamic range, underscoring potential for chip-scale metrology and portable spectroscopy.