Key Conference 200612 – 13 November 2006

Telecom-grade Diode Lasers for Industrial Laser Applications

Toby Strite

Manager of High Power Laser Marketing

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Outline

Evolution of Industrial Diode Lasers– Telecom-grade and beyond

Diode/Fiber-based Industrial Lasers

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Fiber-coupled Industrial Diode Laser Eras

Reliability (inception 2003) “$$$’s and *#&%^!!”– DPSS is considered technology of the future (“always has

been, always will be…”)– Diode laser investment focused in telecom– Unreliable, low brightness bars are only choice

Telecom-grade (2003 ?) “$/Watt”– Telecom migrants disrupt brightness, drive $/Watt– Even low-end bars reliably deliver 10,000hrs– Reliability and $/Watts begin to de-couple

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What is a Telecom-Grade Diode Laser?

Operational Excellence and Business Breadth– Large, fully-absorbed fab (ISO-9001 a decade ago, now TL-9000)– High-volume off-shore assembly

Technical and Cost Roadmaps, Extensive Track Record– Platforms, not just products

Predictable, sustained performance– Rigorous NPI, PCN and PDN processes– Reliability understanding surpasses the qualification report

… Confidence and Transparency for the Customer!

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Telecom 980nm pump lasers since 1993…

90mW 980nm pumps assembled in Boston sold for $7000

Five chips, several packages, one transfer to China later…– 500mW 980nm pumps sell well below $1000– 90mW 980nm pumps cost $300– and 980nm pump vendors are (again) profitable

Over 13yrs, innovation and focused cost-reduction realized– 21% annual price reduction for 90mW part– 15% annual power increase for 980nm pumps– 26% annual $/mW price reduction to the market

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The Story Moves to Fiber Laser Pumps

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1.0

10.0

100.0

1992 1994 1996 1998 2000 2002 2004 2006 2008

Year of Introduction

Po

wer

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Commercially available fiber-coupled power from 100um 9xx nm fiber laser pump diodes

14% average annualpower increase

Annual 17.5% (red) power increases enabling 26% annual $/Watt erosion predicts a reliable 35W fiber-coupled diode will sell for $70 in 2016…!!

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Third Industrial Diode Era - Efficiency

Diode Efficiency (2005 ?) “still $/Watt”– reliable power is limited by waste heat

For diodes to progress, efficiency must increase

32 Watts

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Optimizing single-emitter efficiency

Research funded by DARPA SHEDS program promises power conversion efficiency improvements in future fiber laser pumps

Device Efficiency of Similar Structures at 25C, 940nmDashed = Commecially Available Solid Red = SHEDS Design

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Drive Current (A)

Ou

tpu

t P

ow

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(W)

30%

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80%P

ow

er C

on

v. E

ff.

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Diode Laser CY’06 TAMs

$3.5B diode laser market is 59% of total laser sales

Source: Laser Focus World annual Laser Market Review (Feb’06)

Optical storage - $1.9B

Telecom/Datacom - $1.2B

Industrial, Medical, Graphics and Other - $300M

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Industrial Diode Market Segmentation

$300MIndustrial Diode TAM

“Fiber Laser Market set to grow at a 35% CAGR through 2010” –

Strategies Unlimited, Apr’06

Solid-State and Fiber Laser Pumps $160M

Medical Diodes $75M

Graphic Arts $32M

Misc.

Pumps

Displacement of classic lamp-pumped SSL and gas lasers by DPSSL

Displacement of classic lasers by Direct Diode systems

High-quality, telecom-grade diodes enable wholesale shift of

industrial laser industry to diode-based solutions

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Diodes and Fiber – Disrupting the Laser Industry

Fiber is a new paradigm– Fiber-based Laser SS/Gas Lasers– Modular, spliced Delicate alignments– Service free Disposables– High efficiency (25+%) Low efficiency (few to 10%)– High brightness Inferior brightness

Direct Diode systems are just another fiber laser Solid-state (classic) lasers are adopting fiber

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50W Fiber-coupled Direct Diode System

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Phoenix SSL platform

Laser diode FBG PP crystal beam shaping/light loop

Not your typical diode-pumpedsolid-state laser:

telecom style packagesspliced fiber

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Summary

Pump diode lasers are mature, reliable– Telecom-grade diodes soon to be

ubiquitous in the industrial laser industry

Fiber lasers are merely the most important variety of fiber laser