Abstract

A novel scrambling-type mode multiplexer (MUX) is proposed for future mode-division multiplexing with large number of modes. The proposed MUX does not aim at high modal extinction ratio as in a conventional-mode MUX, rather, all the modes are moderately mixed assuming that an MIMO-based receiver is used. The proposed configuration is superior to the conventional-mode MUX based on asymmetric directional couplers in terms of the fabrication tolerance of the waveguide width and scalability to a large number of modes. The wavelength dependence is also small since no coherent coupling devices are used, except for mode rotators. A three-mode multiplexer design based on a cascaded Y-branch waveguide and an integrated mode rotator on a silica planar lightwave circuit shows that low-loss and small wavelength dependence multiplexing is possible and a proof-of-concept device is fabricated.

© 2018 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription