Multichannel optical spectrum slicer and method of measuring modal birefringence and/or polarization mode dispersion of slicer itself

摘要

A multichannel optical spectrum slicer is able to convert a broad-band continuous spectral light into discontinuous multiple wavelength lights.;This spectrum silcer comprise a birefringent device (F₁) and linear polarizers (P₀, P₁). A birefringent device (F₁) such as a birefringent single-mode optical fiber or uniaxial single crystal has two polarization axes (x, y) each orthogonal to an optical axis (z). Linear polarizers (P₀, P₁) are disposed at the input and the output ends of the birefringent device (F₁) with the direction of polarization (A) being inclined by about 45° relative to each of the polarization axes (x, y).;Further, when birefringence devices (F₁, F₂) are disposed in plurality between each polarizer (P₀-P₂), the spectrum separation is enhanced more.