کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5019030 1467838 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A differential interferometric heterodyne encoder with 30 picometer periodic nonlinearity and sub-nanometer stability
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
A differential interferometric heterodyne encoder with 30 picometer periodic nonlinearity and sub-nanometer stability
چکیده انگلیسی
A differential interferometric heterodyne encoder with spatially separated input beams was developed to minimize periodic nonlinearities resulting from polarization mixing. The laser beams with different frequencies were delivered by two polarization-maintaining fibers to the encoder head. Under laboratory conditions this encoder demonstrated a system stability of 38 pm (standard deviation) and 100 pm over 30 s and 1 h respectively. In a comparison measurement with a differential heterodyne interferometer, this encoder showed periodic nonlinearities of less than 30pm without any additional correction.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Precision Engineering - Volume 50, October 2017, Pages 114-118
نویسندگان
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