Terahertz bandwidth integrated radio frequency spectrum analyzer via nonlinear optics
Marcello Ferrera, Christian Reimer, Alessia Pasquazi, Marco Peccianti,, Matteo Clerici, Lucia Caspani, Sai T. Chu, Brent E. Little, Roberto, Morandotti, and David J. Moss
TL;DR
This paper presents an integrated all-optical RF spectrum analyzer with over 2.5 THz bandwidth, capable of characterizing ultrahigh repetition rate lasers and revealing dynamic noise behaviors.
Contribution
The work introduces a novel integrated silica waveguide-based spectrum analyzer with unprecedented bandwidth for on-chip RF spectrum analysis.
Findings
Bandwidth > 2.5 THz achieved
Characterized lasers up to 400 GHz repetition rate
Observed dynamic noise behaviors
Abstract
We report an integrated all-optical radio frequency spectrum analyzer based on a ~ 4cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz. We use this device to characterize the intensity power spectrum of ultrahigh repetition rate mode-locked lasers at repetition rates up to 400 GHz, and observe dynamic noise related behavior not observable with other techniques.
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Taxonomy
TopicsAdvanced Fiber Laser Technologies · Photonic and Optical Devices · Semiconductor Lasers and Optical Devices