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Open Quantum Systems Decoherence Photonic Quantum Computing

Frequency stabilization of quantum-cascade lasers by use of optical cavities.

PubMed
Authors: Taubman MS, Myers TL, Cannon BD, Williams RM, Capasso F, Gmachl C, Sivco DL, Cho AY

Year

2002

Paper ID

13103

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

94

Citations

64

Abstract

We report a heterodyne beat with a linewidth of 5.6+/-0.6 Hz between two cavity-stabilized quantum-cascade lasers operating at 8.5 microm . We also present a technique for measuring this beat that avoids the need for extreme isolation of the optical cavities from the environment, that of employing a third servo loop with low bandwidth to force one cavity to track the slow drifts and low-frequency fluctuations of the other. Although it is not fully independent, this technique greatly facilitates heterodyne beat measurements for evaluating the performance of cavity-locked lasers above the bandwidth of the third loop.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 2002 reference point for readers tracking recent quantum research.
  • We report a heterodyne beat with a linewidth of 5.6+/-0.6 Hz between two cavity-stabilized quantum-cascade lasers operating at 8.5 microm .

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References & Citation Signals

[1] DOI https://doi.org/10.1364/ol.27.002164 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/18033470/

Local Citation Graph (Related-Paper Links)

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External citation index: OpenAlex citation signal • updated 2026-06-11 01:07:27

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