Journal
OPTICS EXPRESS
Volume 24, Issue 10, Pages 10890-10897Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.24.010890
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Funding
- Air Force Office of Scientific Research (AFOSR) [FA9550-15-1-0211]
- DARPA PULSE program from AMRDEC [W31P40-13-1-0018]
- National Science Foundation (NSF) [ECCS-1509578]
- Div Of Electrical, Commun & Cyber Sys
- Directorate For Engineering [1509578] Funding Source: National Science Foundation
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Soliton formation in on-chip micro-comb generation balances cavity dispersion and nonlinearity and allows coherent, low-noise comb operation. We study the intracavity waveform of an on-chip microcavity soliton in a silicon nitride microresonator configured with a drop port. Whereas combs measured at the through port are accompanied by a very strong pump line which accounts for >99% of the output power, our experiments reveal that inside the microcavity, most of the power is in the soliton. Time-domain measurements performed at the drop port provide information that directly reflects the intracavity field. Data confirm a train of bright, close to bandwidth-limited pulses, accompanied by a weak continuous wave (CW) background with a small phase shift relative to the comb. (C) 2016 Optical Society of America
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