Dr. Reuven Duer Profile

Dr. Reuven Duer

Founder, President & CSO at iNDX LifeCare

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Proceedings Article | 15 May 2001 Paper

Intelligent switches of integrated lightwave circuits with core telecommunication functions

Nahum Izhaky, Reuven Duer, Neil Berns, Eran Tal, Shirly Vinikman, Jeffrey Schoenwald, Yosi Shani

Proceedings Volume 4284, (2001) https://doi.org/10.1117/12.426869

KEYWORDS: Switches, Switching, Photonic integrated circuits, Signal attenuation, Integrated optics, Analog electronics, Wafer-level optics, Integrated circuits, Waveguides, Silicon

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We present a brief overview of a promising switching technology based on Silica on Silicon thermo-optic integrated circuits. This is basically a 2D solid-state optical device capable of non-blocking switching operation. Except of its excellent performance (insertion loss<5dB, switching time<2ms...), the switch enables additional important build-in functionalities. It enables single-to- single channel switching and single-to-multiple channel multicasting/broadcasting. In addition, it has the capability of channel weighting and variable output power control (attenuation), for instance, to equalize signal levels and compensate for unbalanced different optical input powers, or to equalize unbalanced EDFA gain curve. We examine the market segments appropriate for the switch size and technology, followed by a discussion of the basic features of the technology. The discussion is focused on important requirements from the switch and the technology (e.g., insertion loss, power consumption, channel isolation, extinction ratio, switching time, and heat dissipation). The mechanical design is also considered. It must take into account integration of optical fiber, optical planar wafer, analog electronics and digital microprocessor controls, embedded software, and heating power dissipation. The Lynx Photon.8x8 switch is compared to competing technologies, in terms of typical market performance requirements.

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