کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
745928 1462209 2016 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stable single-mode distributed feedback quantum cascade lasers at λ ∼ 4.25 μm with low power consumption
ترجمه فارسی عنوان
لیزرهای آبشاری کوانتومی بازخورد توزیعی تک حالته پایدار در λ ~ 4.25 میکرومتر با مصرف توان کم
کلمات کلیدی
لیزر آبشار کوانتومی؛ بازخورد توزیع شده؛ تک حالت پایدار ؛ مصرف کم انرژی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی


• Room temperature CW operation of short-wavelength (4.25 μm) DFB-QCL was demonstrated.
• Stable single-mode operation was maintained by gain coupling mechanism.
• Very low threshold power consumption of 1.45 W was achieved by strong coupling buried grating.

Short-wavelength (4.25 μm) distributed-feedback quantum cascade laser operating in continuous wave (cw) mode at room temperature with low power consumption was presented. Stable single-mode operation with a side-mode-suppression-ratio above 25 dB was maintained for the whole measured current and temperature range by enlarging gain difference and strong grating coupling. Because of the strong coupling, very low threshold current and power consumption were achieved. For a device of 9-μm-wide and 2-mm-long, the cw threshold current and power consumption at 293 K were as low as 126 mA and 1.45 W, respectively. All results above were from the device without using buried heterostructure geometry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid-State Electronics - Volume 124, October 2016, Pages 42–45
نویسندگان
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