کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
847792 909233 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental speckle evaluation of broad-area edge-emitting lasers
ترجمه فارسی عنوان
ارزیابی آزمایشگاهی از لیزرهای حاوی لبه های لایه ای گسترده
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی

The speckle characteristics of a broad-area edge-emitting semiconductor laser diode (BAEELD) in continuous wave emission regime are investigated experimentally. Performed measurements aim to assess the dependence of the speckle characteristics on spatial region of emitted light field, driving current and case temperature of BAEELD. When BAEELD operates at operating current of 550 mA and at 24 °C, the speckle in different regions from the broad-area field are measured by three different experimental configurations, including direct measurement, rotating the BAEELD, and gathering all emission by the collimating lens or two mirrors. The correlations between the speckle patterns of different regions of the broad-area field are analyzed. The results demonstrate that the speckle images measured are correlated although the BAEELD operates at different operating currents and case temperatures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 127, Issue 3, February 2016, Pages 1043–1048
نویسندگان
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