New Method of Frequency Stabilization of Semiconductor Lasers

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Published
1988-02-01
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  • https://iopscience.iop.org/page/copyright
  • https://iopscience.iop.org/info/page/text-and-data-mining
DOI
  • 10.1143/jjap.27.l244
Publisher
IOP Publishing

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<jats:p> It is demonstrated that the frequency of a semiconductor laser driven by a constant current can be stabilized by controlling the operating temperature so as to give a constant operating voltage. Since the operating voltage is a direct monitor of the operating temperature, the frequency thus stabilized is insensitive to ambient temperature variations. For hermetically unsealed near-infrared lasers the frequency stability is within ±350 MHz under normal laboratory conditions and the shift is only 500 MHz for a 10°C variation in the ambient temperature. A resettability of ±350 MHz is obtained with an adjustment-free operation. </jats:p>

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