Phase stability of optical self-heterodyned microwave signals with Nd:YVO&lt;inf&gt;4&lt;/inf&gt; laser

Kovács, Gábor; Herczfeld, P.R.; Berceli, T.

doi:10.1109/mwp.2010.5664141

2010 IEEE International Topical Meeting on Microwave Photonics 2010

DOI: 10.1109/mwp.2010.5664141

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Phase stability of optical self-heterodyned microwave signals with Nd:YVO<inf>4</inf> laser

Gábor Kovács

P.R. Herczfeld

T. Berceli

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2017

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Sub 23 μHz instantaneous linewidth and frequency stability measurements of the beat note from an offset phase locked single frequency heterodyned Nd:YAG laser system

Tulchinsky¹

2017

Opt. Express

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We report, what is to the best of our knowledge, the narrowest instantaneous linewidth measurement of the beat frequency between two phase locked heterodyned 1.319 μm Nd:YAG lasers. At both 65 kHz and 31.7 GHz beat frequencies, we measured the instantaneous 3 dB linewidth of the optically-generated microwave tones to be < 22.8 μHz, limited only by the minimum instrument resolution. Allan deviation measurements indicate that the laser system follows a 5 MHz quartz reference oscillator to stability levels of σy (1s) = 8.4 × 10. At 10.24 GHz, the laser system follows a sapphire loaded cavity oscillator to stability levels of σy (1s) = 1.6 × 10. For these measurements, the optical beat note closely follows the linewidth and stability of the driving microwave frequency reference.

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Sub 23 μHz instantaneous linewidth and frequency stability measurements of the beat note from an offset phase locked single frequency heterodyned Nd:YAG laser system

Tulchinsky¹

2017

Opt. Express

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Phase stability of optical self-heterodyned microwave signals with Nd:YVO<inf>4</inf> laser

Cited by 1 publication

References 10 publications

Sub 23 μHz instantaneous linewidth and frequency stability measurements of the beat note from an offset phase locked single frequency heterodyned Nd:YAG laser system

Sub 23 μHz instantaneous linewidth and frequency stability measurements of the beat note from an offset phase locked single frequency heterodyned Nd:YAG laser system

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