Simple single-section diode frequency combs
Abstract
Frequency combs, broadband light sources whose spectra consist of coherent, discrete modes, have become essential in many fields. Miniaturizing frequency combs would be a significant advance in these fields, enabling the deployment of frequency-comb based devices for diverse measurement and spectroscopy applications. We demonstrate diode-laser based frequency comb generators. These laser diodes are simple, electrically pumped, inexpensive, and readily manufactured. Each chip contains several dozen diode-laser combs. We measure the time-domain output of a diode frequency comb to reveal the underlying frequency dynamics responsible for the comb spectrum, conduct dual comb spectroscopy of a molecular gas with two devices on the same chip, and demonstrate that these combs can be battery powered by showing the output spectrum of a battery-operated device.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 01, 2020
- Source ID
- 10.1063/5.0033211
Entities
People
- Brad C. Smith
- Grace C. Kerber
- Herbert G. Winful
- Mark Dong
- Matthew W Day
- Rachel Owen
- Steven Cundiff
- Taigao Ma
Organizations
- Defense Advanced Research Projects Agency
- University of Michigan