Small wavelength division multiplexer

• Main Authors: WANG ZONGYUAN, LI YANG, LIN NIANNIAN, XU YUNBING, XUE TINGYU, ZHAO WULI
• Format: Patent
• Language: Chinese; English
• Published: 18.06.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The invention discloses a small wavelength division multiplexer which comprises a Z-Block which is provided with a parallel substrate, a wedge block and a plurality of filters, wherein the filters have different working wavelengths, the filters and the wedge block are sequentially fixed on one side of the parallel substrate in parallel, the side face, away from the filters and the wedge block, of the parallel substrate is a reflecting face, the filter is used for transmitting a light beam with a specific wavelength and reflecting a light beam with a residual wavelength, and the light beam with the residual wavelength is emitted to the adjacent filter or wedge block by the reflecting film of the parallel substrate; an optical fiber collimator group which is composed of a plurality of optical fiber collimators, wherein the plurality of optical fiber collimators are in one-to-one correspondence with the wedge angle block and the plurality of filters of the Z-Block; and a substrate which is used for relatively fi