University of Twente Student Theses


Nd:Al2O3 as a gain material for integrated devices

Dalfsen, K. van (2009) Nd:Al2O3 as a gain material for integrated devices.

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Abstract:Integrated optics, in which optical devices are fabricated on a chip, is a rapidly expanding field. Integrated optics differs from free-space optics in the way that functions that would otherwise need bulky equipment in free-space optics, are combined on a single chip. Light is confined within on-chip lightguides, called 'channel waveguides'. The concept of guiding optical signals in lightguides is known since the early sixties. It was not until the late sixties and early seventies, however, that the importance of integrated optics was realized [1], leading to the first topical meeting on integrated optics in 1972 [2]. Low-cost optical fibers developed in the early 1980's have led to gradual replacement of metallic wires for telecommunication. Meanwhile, improvements in micro- and nanolithography technology led to the introduction of integrated on-chip optical circuits. Integrated optical circuits have many applications in communications and sensing. In particular, Neodymium-doped (Nd) materials have applications in communications because of its emission in the second telecommunication window. Various sensing applications and lab-on-a-chip systems not limited to this specific Nd-ion have been proposed and are being investigated [3{6], and will become common in years to come.
Item Type:Essay (Master)
Faculty:TNW: Science and Technology
Subject:33 physics
Programme:Applied Physics MSc (60436)
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