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

Matthew S. Taubman; Tanya L. Myers; Bret D. Cannon; Richard M. Williams; Federico Capasso; Claire Gmachl; Deborah L. Sivco; Alfred Y. Cho

doi:10.1364/OL.27.002164

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

Matthew S. Taubman, Tanya L. Myers, Bret D. Cannon, Richard M. Williams, Federico Capasso, Claire Gmachl, Deborah L. Sivco, Alfred Y. Cho

Research output: Contribution to journal › Article › peer-review

66 Scopus citations

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 μm. 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.

Original language	English (US)
Pages (from-to)	2164-2166
Number of pages	3
Journal	Optics Letters
Volume	27
Issue number	24
DOIs	https://doi.org/10.1364/OL.27.002164
State	Published - Dec 15 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1364/OL.27.002164

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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 μm. 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.",

author = "Taubman, {Matthew S.} and Myers, {Tanya L.} and Cannon, {Bret D.} and Williams, {Richard M.} and Federico Capasso and Claire Gmachl and Sivco, {Deborah L.} and Cho, {Alfred Y.}",

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T1 - Frequency stabilization of quantum-cascade lasers by use of optical cavities

AU - Taubman, Matthew S.

AU - Myers, Tanya L.

AU - Cannon, Bret D.

AU - Williams, Richard M.

AU - Capasso, Federico

AU - Gmachl, Claire

AU - Sivco, Deborah L.

AU - Cho, Alfred Y.

PY - 2002/12/15

Y1 - 2002/12/15

N2 - 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 μm. 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.

AB - 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 μm. 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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EP - 2166

JO - Optics Letters

JF - Optics Letters

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

Abstract

All Science Journal Classification (ASJC) codes

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