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Search Publications by: Zachary Newman (Assoc)

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Displaying 1 - 8 of 8

Nonlinear Networks for Arbitrary Optical Synthesis

May 19, 2023
Author(s)
Jennifer Black, Zachary Newman, Su-Peng Yu, David Carlson, Scott Papp
Nonlinear wavelength conversion is a powerful control of light, especially when implemented at the nanoscale with integrated photonics. However, strict energy conservation and phase-matching requirements constrain the converted output. To overcome these

High-performance, compact optical standard

September 15, 2021
Author(s)
Zachary Newman, Vincent N. Maurice, Tara Fortier, Connor Fredrick, Scott Diddams, John Kitching, Matthew Hummon
We describe a high-performance, compact optical frequency standard based on a microfabricated Rb vapor cell and a low-noise, external cavity diode laser operating on the Rb two-photon transition at 778 nm. The optical standard achieves an instability of 1

A miniaturized optical frequency standard for next generation portable optical clocks

August 7, 2020
Author(s)
Vincent N. Maurice, Zachary Newman, Susannah Dickerson, Morgan Rivers, Mark Mescher, John LeBlanc, John Kitching, Matthew Hummon, Cort Johnson
This paper describes the development and measurement of a miniaturized optical frequency standard based on the rubidium two-photon transition at 778 nm. The optical standard has been implemented on a micro-optics breadboard and operates on

General Methods for Suppressing the Light Shift in Atomic Clocks Using Power Modulation

August 3, 2020
Author(s)
V Yudin, M. Y. Basalaev, A. V. Taichenachev, Juniper Pollock, Zachary Newman, Moshe Shuker, Azure L. Hansen, Matthew Hummon, Elizabeth Donley, John Kitching
We show that the light shift in atomic clocks can be suppressed using time variation of the interrogation field intensity. By measuring the clock output at two intensity levels, error signals can be generated that simultaneously stabilize a local

Nanophotonic tantala waveguides for supercontinuum generation pumped at 1560 nm

July 22, 2020
Author(s)
Kieran F. LaMee, David Carlson, Zachary Newman, Su P. Yu, Scott Papp
We experimentally demonstrate efficient and broadband supercontinuum generation in nonlinear tantala (Ta2O5) waveguides using a 1560 nm femtosecond seed laser. With incident pulse energies as low as 100 pJ, we create spectra spanning up to 1.6 octaves

Direct kerr-frequency comb atomic spectroscopy

February 28, 2020
Author(s)
Liron Stern, Jordan R. Stone, Songbai Kang, Daniel C. Cole, Zachary L. Newman, Kerry Vahala
Microresonator-based soliton frequency combs- microcombs -have recently emerged to offer low- noise, photonic-chip sources for optical measurements. Owing to nonlinear-optical physics, microcombs can be built with various materials 1-3 and tuned or

Ultranarrow linewidth photonic-atomic laser

January 8, 2020
Author(s)
Wei Zhang, Liron Stern, David R. Carlson, Douglas G. Bopp, Zachary L. Newman, Songbai Kang, John Kitching, Scott Papp
Lasers with high spectral purity can enable a diverse application space, including precision spectroscopy, coherent high-speed communications, physical sensing, and manipulation of quantum systems. Already, meticulous design and construction of bench Fabry

Architecture for the photonic integration of an optical atomic clock

May 20, 2019
Author(s)
Zachary L. Newman, Vincent N. Maurice, Tara E. Drake, Jordan R. Stone, Travis Briles, Daryl T. Spencer II, Connor D. Fredrick, Qing Li, Daron A. Westly, Bojan R. Ilic, B. Shen, M.-G Suh, K. Y. Yang, C Johnson, D.M. S. Johnson, Leo Hollberg, K. Vahala, Kartik A. Srinivasan, Scott A. Diddams, John E. Kitching, Scott B. Papp, Matthew T. Hummon
Optical atomic clocks, which rely on high-frequency, narrow-line optical transitions to stabilize a clock laser, outperform their microwave counterparts by several orders of magnitude due to their inherently large quality factors. Optical clocks based on