کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1536389 1512638 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Wavelength tunable, high energy femtosecond laser pulses directly generated from large-mode-area photonic crystal fiber
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Wavelength tunable, high energy femtosecond laser pulses directly generated from large-mode-area photonic crystal fiber
چکیده انگلیسی

Wavelength tunable high energy ultrashort laser pulses are generated from a large-mode-area photonic crystal fiber in anomalous dispersion (AD) regime. A simplified laser cavity design with one fine polished facet of the fiber as a cavity mirror is used. The intra-cavity dispersion compensation is achieved by a grating pair, the spatial dispersed light from which also have optical spectrum filtering effects combined with the limited aperture of the fiber core. The laser system is able to generate ultrashort pulses ranging from 494 fs (with 56 nJ pulse energy) to 1.24 ps (with 49 nJ pulse energy) at 55 MHz repetition rate. The filtering mechanism benefits the generation of high energy pulses with narrowing pulse duration in AD regime. An undulation in frequency and time domain is also observed with the increase of the pump power. Furthermore, this laser system is directly used as seed for supercontinuum generation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 285, Issues 10–11, 15 May 2012, Pages 2715–2718
نویسندگان
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