Journal article Open Access

# Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal

Galland, N.; Lučić, N.; Zhang, S.; Alvarez-Martinez, H.; Le Targat, R.; Ferrier, A.; Goldner, P.; Fang, B.; Seidelin, S.; Le Coq, Y.

### Dublin Core Export

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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
<dc:creator>Galland, N.</dc:creator>
<dc:creator>Lučić, N.</dc:creator>
<dc:creator>Zhang, S.</dc:creator>
<dc:creator>Alvarez-Martinez, H.</dc:creator>
<dc:creator>Le Targat, R.</dc:creator>
<dc:creator>Ferrier, A.</dc:creator>
<dc:creator>Goldner, P.</dc:creator>
<dc:creator>Fang, B.</dc:creator>
<dc:creator>Seidelin, S.</dc:creator>
<dc:creator>Le Coq, Y.</dc:creator>
<dc:date>2020-04-08</dc:date>
<dc:description>We present an experimental technique for realizing a specific absorption spectral pattern in a rare-earth-doped crystal at cryogenic temperatures. This pattern is subsequently probed on two spectral channels simultaneously, thereby producing an error signal allowing frequency locking of a laser on the said spectral pattern. Appropriate combination of the two channels leads to a substantial reduction of the detection noise, paving the way to realizing an ultra-stable laser for which the detection noise can be made arbitrarily low when using multiple channels. We use such technique to realize a laser with a frequency instability of 1.7 × 10−15 at 1 second, not limited by the detection noise but by environmental perturbation of the crystal. This is comparable with the lowest instability demonstrated at 1 second to date for rare-earth doped crystal stabilized lasers.</dc:description>
<dc:identifier>https://zenodo.org/record/3744243</dc:identifier>
<dc:identifier>10.1364/OL.389833</dc:identifier>
<dc:identifier>oai:zenodo.org:3744243</dc:identifier>
<dc:relation>info:eu-repo/grantAgreement/EC/H2020/712721/</dc:relation>
<dc:relation>url:https://zenodo.org/communities/nanoqtech-h2020</dc:relation>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:subject>rare earth</dc:subject>
<dc:subject>nanoqtech</dc:subject>
<dc:subject>quantum technologies</dc:subject>
<dc:title>Double-heterodyne probing for ultra-stable laser based on spectral hole burning in a rare-earth doped crystal</dc:title>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:type>publication-article</dc:type>
</oai_dc:dc>

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