Optical switch based on a fluid-filled photonic crystal fiber Bragg grating

Version of RecordPublishe

High-precision flip-chip technology for alloptical wavelength conversion using SOI photonic circuit

High-precision hybrid integration on SOI photonic circuit was developed. The technology was applied to fabricate an integrated high-speed all-optical wavelength converter. Potential of the platform was demonstrated by 40Gb/s all-optical wavelength switchin

Colorless ONU with discolored source and hybrid SOI integrated wavelength converter

We present a novel optical network unit (ONU) featuring a "colorless" directly modulated laser (DML) enabled by a hybridly integrated all-optical wavelength converter (AOWC), supporting operation beyond 10 Gb/s. It incorporates a semiconductor optical amplifier (SOA) for wavelength conversion and two cascaded delay interferometers (DIs) for spectral processing. The ONU was proven at full duplex 10-Gb/s data rate in a WDM passive optical network

Fabrication and experimental demonstration of the first 160 Gb/s hybrid silicon-on-insulator integrated all-optical wavelength converter

We present a hybrid integrated photonic circuit on a silicon-on-insulator substrate that performs ultra high-speed all-optical wavelength conversion. The chip incorporates a 1.25 mm non-linear SOA mounted on the SOI board using gold-tin bumps as small as 14 m. ?he device performs chirp filtering and signal polarity inversion with two multi-mode interference (MMI) - based cascaded delay interferometers (DIs) monolithically integrated on the same SOI substrate. Full free spectral range (FSR) tuning of the DIs is accomplished by two independently tuneable on-chip thermal heaters. We demonstrate 160Gb/s all-optical wavelength conversion with power penalties of less than 4.6dB

Experimental evaluation of a packaged SOI hybrid all-optical wavelength converter in a meshed network test-bed

We demonstrate data transmission and switching using a packaged and pigtailed all-optical wavelength converter. The module employs a hybrid integrated SOA and two cascaded delayinterferometers on a 4m SOI. We present wavelength routing with power penalties less than 5dB

MIKROPHOT - LASERDIRECT. Hochleistungsstabile Laserfasern durch neue modale Ausbreitungskonzepte Abschlussbericht

Available from TIB Hannover: F04B2029 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman

Fluid-filled microstructured optical fibers and switching applications

We filled a refractive index matching liquid into the air holes of a Ge-doped solid-core microstructured optical fiber (MOF) with a fiber Bragg grating (FBG) to investigate its switching functions. A type of thermo-optic in-fiber switch based on the tunable bandgap effect was demonstrated in the fluid-filled FBG at the Bragg wavelength of 830nm, and its extinction ratio depends strongly on the reflectivity of the FBG. Another type of optical switch with an extinction ratio of 30 dB was developed in the fluid-filled MOF at a long wavelength of 1200 or 1400nm, attributing to the absorption of the filled liquid. Such two types of switches can turn on/off the light transmission via a small temperature adjustment of ±5 or ±10ºC, respectively, and will find useful applications in all-fiber optical communication systems

The European BOOM project :silicon photonics for high-capacity optical packet routers

During the past years, monolithic integration in InP has been the driving force for the realization of integrated photonic routing systems. The advent of silicon as a basis for cost-effective integration and its potential blend with III–V material is now opening exciting opportunities for the development of new, high-performance switching and routing equipment. Following this rationale, BOOM—as a European research initiative—aims to develop compact, cost-effective, and power-efficient silicon photonic components to enable optical Tb/s routers for current and new generation broadband core networks. This "siliconization" of photonic routers is expected to enable ultrahigh bit rates as well as higher levels of integration and power efficiency. The BOOM "device portfolio" includes all-optical wavelength converters, ultradense wave-division multiplexing (UDWDM) photodetectors, and high-speed transmitters; all based on silicon waveguide substrates. Here, we present the device concepts, the fabrication of photonic building blocks and the experiments carried out as the initial steps toward the realization of the first high-capacity silicon photonic router