COMPACT DOUBLE-PASS WAVELENGTH MULTIPLEXER-DEMULTIPLEXER HAVING AN INCREASED NUMBER OF CHANNELS

摘要

An optical multiplexing and demultiplexing device includes: a plurality of optical fibers (10) each terminating in a fiber end for radiating and receiving corresponding light beams; a fiber mounting assembly (11) configured to support the optical fibers so that the fiber ends terminate in substantially the same plane, the mounting assembly also being configured to position the fibers in a regular array of N rows and M columns; reflecting means (20) for reflecting beams radiating from the fiber ends; lens means (17) for collimating and focusing beams propagating between the fiber ends and the reflecting means; and diffraction means (9) for diffracting beams propagating between the lens means and the reflecting means. The reflecting means includes a plurality of N reflective elements, each of the N reflective elements being associated with a corresponding one of N rows.