Photonicsterm in listing

The technology of generating and harnessing lightand other forms of radiant energy whose quantumunit is the photon. The science includes lightemission, transmission, deflection, amplificationand detection by optical components andinstruments, lasers and other light sources, fiberoptics, electro-optical instrumentation, relatedhardware and electronics, and sophisticatedsystems. The range of applications of photonicsextends from energy generation to detection tocommunications and information processing.

from the Photonics Dictionary at Photonics.com

Photonics

• Photonics was coined in analogy with Electronics- Electronics: The generation and control of electrons- Photonics: The generation and control of photons

• Compared with “Optics”, photonics has more emphasis on guided waves and optoelectronic devices

• Photonics has much in common with optical communications technology

• For a detailed definition, look at the table of contents in a book on photonics or a class syllabus

Areas Included in Photonics

• Optoelectronics: Devices that are essentially electronic in nature but involve light (e.g. light emitting diodes, liquid-crystal display, and array photodetectors)

• Electro-optics: Devices in which electrical effects play a role (e.g. lasers, and electro-optic modulators and switches)

• Quantum Electronics: Devices and systems that rely principally on the interaction of light with matter (e.g. lasers and nonlinear optical devices used for optical amplification and wave-mixing)

• Lightwave Technology: Devices and systems that are used in optical communications and optical signal processing

OPTICS ELECTRONICS

OPTO-ELECTRONICS

TRADITIONALOPTICS

COMPLETELYELECTRONIC

DEVICES(e.g.

transistors)

PHOTONICS

ELECTRO-OPTICS

Descriptions of Optical Phenomena

Quantum Optics

Electromagnetic Optics

ScalarWave Optics

RayOptics

THE GLOBAL TELECOMMUNICATIONS NETWORK

= Optical Fiber

From “Understanding Fiber Optics”By Jeff Hecht

OPTICAL COMMUNICATIONS LINK

EXTERNAL OPTICAL MODULATION

→ reduced chromatic dispersionand higher data rates.

TIME DIVISION MULTIPLEXING

MULTIPLEXER

T1 Data

T1 Data

T1 Data

T1 Data

LASEROPTICAL

MODULATOR

MULTIPLEXER DE-MULTIPLEXER

λ1

λ2

λn

λ1, λ2 … λn ADD

FIBERPOWERAMP DROP

λi

λj

PRE-AMP

IN-LINEAMP

λ1

λ2

λm

VARIABLEATTENUATOR

PHOTODIODE

WAVELENGTH DIVISION MULTIPLEXING

OPTICAL NETWORKS AND OPTICAL SWITCHING

NetworkNode

OpticalData Link

Switching “Granularity”

PHOTONIC INTEGRATED CIRCUITSA.K.A. INTEGRATED OPTICAL DEVICES

N-TYPE OPTICAL CLAD ACTIVE LAYER

METAL

ELECTRODE

P-TYPE OPTICAL CLAD

P-TYPE SUBSTATE

• SMALLER SIZE• LOWER COST• GREATERFUNCTIONALITY

LASER MODULATOR

PASSIVE OPTICAL WAVEGUIDE

InP SUBSTRATE

SEMICONDUCTOR LASER SEMICONDUCTOROPTICAL MODULATOR

• SMALLER SIZE• LOWER COST• GREATERFUNCTIONALITY

Silicon Photonics

Slide #14

Center for Integrated Access Networks- CIAN

CENTER FORINTEGRATED ACCESS NETWORKS

Industry Partners

Slide #15

Projected End-User Bandwidth Demand (Alcatel-Lucent)

CENTER FORINTEGRATED ACCESS NETWORKS

High bandwidth emerging services

Slide #16CENTER FORINTEGRATED ACCESS NETWORKS

Other examples of emerging new services that CIAN will enable

Emerging new services require end-user to end-user communications:

3D Holographic Tele-presence, Tele- medicine Real time surgery from remote locations 3D visualization at a distance 3D social networking

Video wall for collaboration

Notes:• 30 fps (video rate)• 0.5 mm res hogels• 100 views per axis• Full color

2600

1000650

10025

10 13

1HPO HPO FP FP

150mm 300mm 150mm 300mm

x2Transfer Rate (Gb/sec)

Display Size

Slide #17

Existing vs. Next-Generation Aggregation Network Topology

Slide #18

CIAN BOXIntelligent optical access/aggregation node with: Packet-rate reconfiguration and optical switching capabilities Advanced physical-layer functions with dynamic performance measurement A distributed cross-layer control plane for dynamic resource allocation & multi-layer traffic engineering

Slide #19

Testbed for Optical Aggregation Networks(TOAN)

TOAN, UA Optical Sciences

Network NodesCIAN Insertion Stations

John WissingerUniversity of Arizona

CENTER FORINTEGRATED ACCESS NETWORKS

Slide #20

Problem with Electrical Connections

• 10,000’s of Cat-6 cables• > 1000 cable bundles• Difficult to scale• Energy inefficient • Expensive

Interconnection in Data Centers

Slide #21

CIAN Optical Solution for Data Centers

21CENTER FOR

INTEGRATED ACCESS NETWORKS

Transparent Optical Switch

DataCenter

Pod(1000’s ofServers)

Fiber-OpticData Link