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Performance evaluation of InP-Based DP-IQ modulators for multiband transmission systems

: Sena, M.; Cui, Y.; Fiol, G.; Shariati, B.; Napoli, A.; Fischer, J.K.; Schell, M.; Freund, R.


Jaworski, Marek (Hrsg.) ; Institute of Electrical and Electronics Engineers -IEEE-:
22nd International Conference on Transparent Optical Networks, ICTON 2020 : July 19th - 23rd, 2020, Bari, Italy, online
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-8423-4
ISBN: 978-1-7281-8424-1
4 S.
International Conference on Transparent Optical Networks (ICTON) <22, 2020, Online>
Fraunhofer HHI ()

In this paper we study the wavelength-dependence of power imbalance and insertion loss in InP-based 2Ã2 Multi-Mode Interference (MMI) couplers as means to evaluate the design of multiband DP-IQ modulators. A system level investigation is performed on a simulated coherent transmission setup and the impact of different MMI design strategies for 4- and 16-ary quadrature amplitude modulation (QAM) signals is studied.