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Dual-wavelength bandwidth-narrowed output of a high-power diode laser using a simple external cavity

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Abstract

Using an external cavity consisting of an etalon and a mirror, dual-wavelength operation of a high-power broad-area multi-stripe diode laser is achieved. The reflection of the etalon is used as the output beam of the system. The free-running bandwidth of the laser diode is about 2.0 nm. At dual-wavelength operation, the bandwidth of each wavelength component is narrowed to about 0.07 nm, while the space between them is 1.65 nm, determined by the FSR of the etalon. We obtain an available dual-wavelength output power of 2.0 W at the drive current of 6.5 A. The power ratio of the components at two different wavelengths can be changed by changing the temperature of the diode laser. To tune the wavelength of the dual-wavelength output, the temperature of the laser diode and the tilt angle of the etalon are changed simultaneously

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Authors and Affiliations

  1. Optisches Institut P1-1, Technische Universität Berlin, Strasse des 17. Juni 135, 10623, Berlin, Germany

    A. Hermerschmidt & H.J. Eichler

  2. Lingyun Photoelectronic System Co. Ltd., 417 Jianshe Ave., 430030, Wuhan, China

    F. Wang

Authors
  1. A. Hermerschmidt
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  2. F. Wang
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  3. H.J. Eichler
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Correspondence to A. Hermerschmidt.

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PACS

42.55.Px; 42.60.Fc; 42.60.Da

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Hermerschmidt, A., Wang, F. & Eichler, H. Dual-wavelength bandwidth-narrowed output of a high-power diode laser using a simple external cavity. Appl. Phys. B 79, 321–324 (2004). https://doi.org/10.1007/s00340-004-1552-0

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  • DOI: https://doi.org/10.1007/s00340-004-1552-0

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