Wavelength division multiplexer of free space

• 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

The invention discloses a wavelength division multiplexer of a free space, and the wavelength division multiplexer comprises a Z-Block which comprises a parallel substrate, a wedge angle block and a plurality of first filters, wherein the plurality of first filters have different working wavelengths, the plurality of first filters and the wedge angle block are sequentially fixed on one side of the parallel substrate in parallel, the side faces, away from the first filters and the wedge blocks, of the parallel substrates are reflecting faces, the first filters are used for transmitting light beams with specific wavelengths and reflecting light beams with residual wavelengths to the reflecting faces of the parallel substrates, and the light beams with the residual wavelengths are emitted to the adjacent first filters or the wedge blocks through reflecting films of the parallel substrates; an optical fiber collimator group which is composed of a plurality of optical fiber collimators, wherein the plurality of op