Abstract
We demonstrate coherent supercontinuum generation (SCG) in a monolithically integrated lithium-niobate waveguide, under the presence of second- and third-order nonlinear effects. We achieve more than two octaves of optical bandwidth in a 0.5-cm-long waveguide with 100-picojoule-level pulses. Dispersion engineering of the waveguide allows for spectral overlap between the SCG and the second harmonic, which enables direct detection of the carrier–envelope offset frequency f CEO using a single waveguide. We measure the f CEO of our femtosecond pump source with a 30-dB signal-to-noise ratio.
| Original language | English |
|---|---|
| Pages (from-to) | 1222-1225 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 44 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1 Mar 2019 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2019 Optical Society of America
Funding
Acknowledgment. Device fabrication is performed at the Harvard University Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the NSF. Funding. National Science Foundation (NSF) (ECCS1609549, ECCS-1740296 E2CDA, ECCS1541959); Defense Advanced Research Projects Agency (DARPA) (W31P4Q-15-1-0013); Air Force Office of Scientific Research (AFOSR) (FA9550-15-1-0303). National Science Foundation (NSF) (ECCS1609549, ECCS-1740296 E2CDA, ECCS1541959); Defense Advanced Research Projects Agency (DARPA) (W31P4Q-15-1-0013); Air Force Office of Scientific Research (AFOSR) (FA9550-15-1-0303). Device fabrication is performed at the Harvard University Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the NSF.
| Funders | Funder number |
|---|---|
| Harvard University Center for Nanoscale Systems | |
| National Science Foundation | ECCS1541959, ECCS1609549, ECCS-1740296 E2CDA |
| Air Force Office of Scientific Research | FA9550-15-1-0303 |
| Defense Advanced Research Projects Agency | W31P4Q-15-1-0013 |
| Cognitive Neuroscience Society | |
| National Science Foundation | ECCS-1740296 |