Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Intensity noise self-regulated solid-state laser at 1.5${\mu}$m using an
  ASHG based Buffer Reservoir   An absorption mechanism based on second-harmonic generation (ASHG) is
successfully implemented as a buffer reservoir in a solid-state Er,Yb:Glass
laser emitting at telecom wavelength. We show that a slight ASHG rate
conversion of 0.016% using a BBO crystal enables to cancel out the excess
intensity noise at the relaxation oscillation frequency, i.e. 35 dB reduction,
as well as to cancel the amplified spontaneous emission beating at the free
spectral range resonances of the laser lying in the GHz range.

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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: astro-ph
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The categories of this paper are: adap-org
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The categories of this paper are: funct-an
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The categories of this paper are: nlin
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The categories of this paper are: hep-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: cs
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The categories of this paper are: hep-th