Compact Electroabsorption Modulators for Photonic Integrated Circuits, Using an Isolated Pedestal Contact Scheme

Daunt, Chris L. M. and O'Callaghan, James and Lee, Ko-Hsin and Yang, Hua and Young, Robert J. and Thomas, Kevin and Pelucchi, Emanuele and Corbett, Brian and Peters, Frank H. (2012) Compact Electroabsorption Modulators for Photonic Integrated Circuits, Using an Isolated Pedestal Contact Scheme. IEEE Photonics Technology Letters, 24 (5). pp. 356-358. ISSN 1041-1135

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Abstract

We demonstrate a shallow ridge waveguide, lumped element electroabsorption modulator (EAM) based on AlInGaAs multiple quantum wells, operating with input powers up to 8 dBm. The device was isolated between two DC controlled sections, using angled etched slots in the waveguide, minimizing optical feedback, while also providing 40-K Omega resistance between devices. The EAM uses a planar isolated pedestal contact with a benzocyclobutene bridge, allowing for a small contact footprint of just 0.024 mm(2), while being suitable for flip-chip packaging. The parasitic capacitance was measured to be 19.6 fF, and the EAM has a f(3dB) bandwidth of 42 GHz.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Photonics Technology Letters
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
54902
Deposited By:
Deposited On:
06 Jun 2012 12:23
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Jul 2020 03:10