Patent ID: 6084695
Filing Date: 2000-07-04
Classification: G02B

Abstract:
An optical fiber wavelength multiplexing device comprising:input fibers (101 to 105) designed for carrying luminous beams at different wavelengths (.lambda.1, .lambda.2 . . . , .lambda.n),an output fiber (161) designed for carrying the whole set of such luminous beams,a dispersing system (107) receiving luminous beams for the input fibers (101 to 105) in an end plane and generating superimposed luminous beams designed for the output fiber (161) in an output plane, anda collimation optical element optically positioned between the fibers and the dispersing system,characterised in that a converging lens array (171 to 175) is located in the input plane, whereas a lens corresponds to each input fiber and whereby the said input fiber is placed in the focal point of the said lenswherein a pitch between at least two consecutive lenses corresponding to input fibers is equal to a pitch between each consecutively arranged fiber.