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首页> 外文期刊>Optical engineering >Ridge-width dependence of midinfrared interband cascade laser characteristics
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Ridge-width dependence of midinfrared interband cascade laser characteristics

机译：中红外带间级联激光器特性的脊宽依赖性

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摘要

We report an experimental study of how the light-current characteristics and lateral mode properties of interband cascade lasers depend on ridge width. Narrower ridges provide greater heat dissipation due to lateral flow, along with operation in a single lateral mode. However, sidewall imperfections increase the cw threshold current density somewhat, from J_(th) = 582 A/cm~2 at 300 K for an 11 -μm-wide ridge to 713 A/cm~2 and 1.07 kA/cm~2 for 5- and 3-μm-wide ridges, respectively. The narrowest ridges similarly display a degradation of the slope efficiency. A 13-μm- wide ridge produced 45 mW per facet of cw output power and maximum wall-plug efficiency of 3.5% per facet at T= 20℃. A 5-μm-wide ridge with 3-mm cavity length and no facet coatings operated cw at k = 3.5-μm to a new record temperature of 345 K for the 3 to 4-μm spectral range.
机译：我们报告了关于带间级联激光器的光电流特性和横向模式特性如何取决于脊宽的实验研究。窄的脊由于侧向流动以及在单个侧向模式下的操作而提供了更大的散热。但是，侧壁缺陷会稍微增加cw阈值电流密度，从300μm的J_（th）= 582 A / cm〜2到11μm宽的脊到713 A / cm〜2和1.07 kA / cm〜2。分别具有5和3μm宽的脊。最窄的脊类似地显示出倾斜效率的降低。宽13μm的脊在C = 20℃时每面连续输出功率产生45 mW的功率，最大壁塞效率为每面3.5％。一个5微米宽的脊，腔长3毫米，无小面涂层，在k = 3.5微米时连续工作，在3到4微米的光谱范围内达到345 K的新记录温度。

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  • 来源
    《Optical engineering》 |2010年第11期|p.111116.1-111116.5|共5页
  • 作者

    William Bewley; Chadwick Canedy; Chul Soo Kim; Mijin Kim; J. Ryan Lindle; Joshua Abell; Igor Vurgaftman; Jerry Meyer;

  • 作者单位

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

    Naval Research Laboratory Code 5613 4555 Overlook Avenue Southwest Washington D.C. 20375;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    midinfrared semiconductor lasers; interband cascade laser; laser mode control; ridge waveguide;

    机译：中红外半导体激光器;带间级联激光器;激光模式控制;脊形波导;

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