Technique for measuring mode power of two-mode fiber
نویسندگان
چکیده
منابع مشابه
Technique for measuring mode power of two-mode fiber
We propose a simple method for measuring the mode power of two-mode fiber based on the bending method. The mode power ratio is determined with better than 1 dB accuracy by undertaking three power measurements with different numbers of fiber bends. We also evaluate the estimation error of the proposed method and the required resolution of the measurement.
متن کاملTechnique for measuring mode power of two-mode fiber II; Experiment
In a previous paper, we proposed a simple method for measuring the mode excitation ratio in a two-mode fiber (TMF). Here, we experimentally investigate the applicability of the proposed method and also propose an alternative formulation to reduce experimental error.
متن کاملMode competition in high power fiber amplifiers.
Using a beam propagation model of Yb3+ doped, CW fiber amplifiers we show that gain saturation by a strong fundamental mode significantly suppresses the growth of higher order modes with parallel polarization, but enhances the growth of higher order modes with perpendicular polarization. We quantify this effect in straight and bent fibers, with full core or restricted area doping.
متن کاملMode instability in high power fiber amplifiers.
For powers exceeding a sharp threshold in the vicinity of several hundred watts the beam quality from some narrow bandwidth fiber amplifiers is severely degraded. We show that this can be caused by transverse thermal gradients induced by the amplification process.
متن کاملProperties of elliptical-core two-mode fiber.
Polarization and modal birefringence of elliptical-core two-mode fibers are investigated. Wavelengths corresponding to zero group delay difference (GDD) between the two spatial modes and between the orthogonal polarizations are computed when the fiber parameters, i.e., the relative core/cladding index difference and the ratio of major over minor axis, are varied. Simple relationships between th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2013
ISSN: 1349-2543
DOI: 10.1587/elex.10.20130740