We propose a compact MMI-based 4-beam combiner with a spline-curved index step. The 1.74 mm-long device designed in InP material systems offers 3 dB better transmittance than power combiners at a 4.5 nm wavelength spacing.

© 2015 Optical Society of America

PDF Article


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
Login to access OSA Member Subscription