High speed photodiode and 90° optical hybrid for 2 µm optical communication systems

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dc.contributor.advisor Corbett, Brian en
dc.contributor.advisor Peters, Frank H. en
dc.contributor.author Ye, Nan
dc.date.accessioned 2017-01-25T11:14:48Z
dc.date.available 2017-01-25T11:14:48Z
dc.date.issued 2016
dc.date.submitted 2016
dc.identifier.citation Ye, N. 2016. High speed photodiode and 90° optical hybrid for 2 µm optical communication systems. PhD Thesis, University College Cork. en
dc.identifier.endpage 161 en
dc.identifier.uri http://hdl.handle.net/10468/3514
dc.description.abstract In order to maximize the capacity using these C-band wavelengths, more and more efforts have to be exerted by the equipment providers to increase capacity and suppress cross talk between adjacent channels. To overcome this capacity saturation around 1.55 µm, the next generation optical networks require technological developments in new wavelength regions. This will not only extend the current effective transmission band but also address limitations such as loss and non-linearity of silica-core fibers. The waveband at 2 µm can be recognized as a potential candidate due to the low loss window in Hollow Core Photonic Band Gap Fibers (HCPBGF) and the gain bandwidth from Thulium Doped Fiber Amplifier (TDFA). Furthermore this waveband can take advantage of the previous research and development ideas based on 1.55 µm while extending the technologies related to materials and processing for the passive and active components. To satisfy the system-level applications at this new wave band, opto-electronics devices at 2 µm should be developed. In this thesis, we present the building blocks regarding material optimization, device design, process development and performance characterizations of high speed photodiodes and associated 90° optical hybrids at 2 µm. All types of the photodiode devices have been packaged with the support from the package group for high speed test to prove the ability to work in the real optical communication system. For the optical 90° hybrids, design of large spot size diluted waveguide, dimension optimization of 4×4 Multiple Mode Interference (MMI) coupler, and monolithic integration test structure involving hybrid and Mach-Zehnder Interferometer (MZI) are achieved. The devices have displayed the potential to be applied in real 2 µm optical communication systems while the photodiode is also useful in gas sensing area such as carbon dioxide mapping of the atmosphere on the earth. en
dc.description.sponsorship Seventh Framework Programme (MODEGAP FP7) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher University College Cork en
dc.rights © 2016, Nan Ye. en
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/ en
dc.subject 2 micron en
dc.subject High speed photodiode en
dc.subject 90° optical hybrid en
dc.title High speed photodiode and 90° optical hybrid for 2 µm optical communication systems en
dc.type Doctoral thesis en
dc.type.qualificationlevel Doctoral en
dc.type.qualificationname PhD (Science) en
dc.internal.availability Full text available en
dc.check.info No embargo required en
dc.description.version Accepted Version
dc.contributor.funder Seventh Framework Programme en
dc.description.status Not peer reviewed en
dc.internal.school Physics en
dc.internal.school Tyndall National Institute en
dc.check.type No Embargo Required
dc.check.reason No embargo required en
dc.check.opt-out Not applicable en
dc.thesis.opt-out false
dc.check.embargoformat Not applicable en
ucc.workflow.supervisor brian.corbett@tyndall.ie
dc.internal.conferring Spring 2017 en


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