An optical-frequency synthesizer using integrated photonics
- D. Spencer, T. Drake, S. Papp
- 3 May 2018
Any application of an optical-frequency source could benefit from the high-precision optical synthesis presented here, and leveraging high-volume semiconductor processing built around advanced materials could allow such low-cost, low-power and compact integrated-photonics devices to be widely used.
Architecture for the photonic integration of an optical atomic clock
- Z. Newman, V. Maurice, M. Hummon
- 20 May 2019
Laboratory optical atomic clocks achieve remarkable accuracy (now counted to 18 digits or more), opening possibilities for exploring fundamental physics and enabling new measurements. However, their…
Efficient photoinduced second-harmonic generation in silicon nitride photonics
- Xiyuan Lu, G. Moille, A. Rao, D. Westly, K. Srinivasan
- PhysicsNature Photonics
- 26 March 2020
Silicon photonics lacks a second-order nonlinear optical ( χ (2) ) response in general, because the typical constituent materials are centrosymmetric and lack inversion symmetry, which prohibits χ…
Stably accessing octave-spanning microresonator frequency combs in the soliton regime.
- Qing Li, T. Briles, K. Srinivasan
- 28 November 2016
A simplified two-step analysis is developed to explain how broadband soliton states can be accessed with simple pump laser frequency tuning, at a rate much slower than the thermal dynamics.
Chip-integrated visible–telecom entangled photon pair source for quantum communication
- Xiyuan Lu, Qing Li, K. Srinivasan
- PhysicsNature Physics
- 10 May 2018
A nanophotonic visible–telecom time–energy entanglement and its distribution over a 20 km fibre is demonstrated, far exceeding the fibre length over which purely visible wavelength quantum light sources can be efficiently transmitted.
Self-organized nonlinear gratings for ultrafast nanophotonics
- D. Hickstein, D. Carlson, S. Papp
- PhysicsConference on Lasers and Electro-Optics Pacific…
- 20 June 2018
As devices utilizing femtosecond-duration laser pulses become more commonplace, there is a need for next-generation nonlinear-photonics technologies that enable low-energy femtosecond pulses to be…
The Nanolithography Toolbox.
The Nanolithography Toolbox is a platform-independent software package for scripted lithography pattern layout generation and parameterized shapes as building blocks allows users to rapidly design and layout nanoscale devices of arbitrary complexity through scripting and programming.
Interlocking Kerr-microresonator frequency combs for microwave to optical synthesis.
This work establishes Kerr combs as a viable technology for applications like optical-atomic timekeeping and optical synchronization as well as establishing a stable phase-link between optical and microwave frequencies.
Fabrication and preliminary testing of a planar membraneless microchannel fuel cell
- Jamie L. Cohen, D. Westly, A. Pechenik, H. Abruña
- 4 January 2005
Photonic waveguide to free-space Gaussian beam extreme mode converter
- Sangsik Kim, D. Westly, V. Aksyuk
- PhysicsLight: Science & Applications
- 6 March 2018
An extreme mode converter is developed, which is a compact planar photonic structure that efficiently couples a 300 nm × 250”nm silicon nitride high-index single-mode waveguide to a well-collimated near surface-normal Gaussian beam with an ≈160 µm waist, which corresponds to an increase in the modal area by a factor of >105.