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Optical crosstalk on Rx/Tx photonic integration platform

: Baier, M.; Soares, F.; Melati, D.; Achouche, M.; Lanteri, D.; Morichetti, F.; Melloni, A.; Moehrle, M.; Grote, N.


Institute of Electrical and Electronics Engineers -IEEE-:
Third Mediterranean Photonics Conference 2014. Proceedings : May 7th-9th 2014, Trani, Italy
Piscataway, NJ: IEEE, 2014
ISBN: 978-1-4799-4818-5
3 S.
Mediterranean Photonics Conference <3, 2014, Trani>
Fraunhofer HHI ()

We present results on optical crosstalk in the photonic integration platform developed at Fraunhofer HHI. Two fundamental mechanisms are investigated: stray light generation at butt-joints and coupling between two passive waveguides. The latter can happen in two regimes: evanescently or radiatively, depending on the gap between the waveguides. Measurements show the amount of crosstalk that is to be expected on ASPICs. Moreover, means to reduce crosstalk levels that are compatible with the existing technology are demonstrated.