Broptics: the Only FBG Source from Taiwan The Filter that Breaks Grading Broptics Communications Corp Mar 29, 2002

Company Background Founded in Oct, 2000 Initial capital: NTD150M (~USD 4M) Current employees: 20 2 Ph.D, 9 MS in related sciences Operating location Taiwan office: Operation headquarter, RD, manufacture, AP sales/marketing, business development US office: Sales, marketing, business development Main products Fiber Bragg Grating (FBG) filters and applications Athermal packaging services

Broptics Organization General Manager: Dr John Lin USA Business Office: Joe Chiu Sales & Marketing: Alpha Tsai RD1 Laser Writing & Packaging RD2 Ceramic Material QA & Telcordia Test Manufacture Admin & Finance

Service Goal To be the world FBG supply center TechnologiesCost Time

Milestone Oct, 2000 Feb, 2001 Mar, 2001 Apr, 2001 Jul, 2001 Aug, 2001 Oct, 2001 Nov, 2001 Jan, 2002 Mar, 2002 Broptics established Announce 100G FBG filter Release mechanical athermal packaging Announce 50G FBG filter at OFC Legal license FBG patent from UTC/CRC Release Pump Laser Stabilizer & Wavelength Locker Join OptoWorld, Taipei Join ECOC, Amsterdam Research fund granted from Economic Bureau for “Ultra narrow channel spacing FBG development” Announce Gain Flattening Filter at FOE, Tokyo Announce NTE ceramic at OFC

Broptics Technologies Fiber grating laser writing Short period Bragg gratings Long period gratings Chirped gratings Athermal packaging technologies Ceramic packaging Mechanical packaging Performance measurement and testing Instruments and know-how of optical measurement Belcore 1209/1221 testing

Main Product ITU spec FBG 50G FBG filter for DWDM & OADM Specialty and customer spec FBG 980/1480nm EDFA Pump laser stabilizer Laser diode wavelength locker Gain flattening filter Packaging services Mechanical athermal packaging Ceramic athermal packaging

Labs & Facilities Laser writing facility Lab 1: Lambda Physics L1-FBG Lab 2: TuiLaser BraggStar Industry Ceramic lab facility Lab 1: Ceramic Process Lab Lab 2: Heating Treatment Lab Quality testing facility Environment testing Telcordia compliance test

Product Roadmap Ceramic athermal package Mechanical athermal package 25G FBG Low dispersion 50G FBG 50G FBG 980/1480 Pump laser stabilizer Dual grating stabilizer Wavelength locker for laser diode Chirped FBG Gain flattening filter Long Period Gain flattening filter Tunable filter Dispersion compensation

Focused Products Current Stage 50G FBG Filter for OADM EDFA Pump Laser Stabilizer Chirped FBG Gain Flattening Filter 3Q, 2002 LPG Gain Flattening Filter Compact Ceramic Packaging 4Q, 2002 Tunable Filter for Re-configurable Applications Low Dispersion 50G FBG Filter

Possible Use of FBG in DWDM System Multiplexer Dispersion control EDFA OADM SwitchEDFA Demux ITU FBG filter Dispersion compensation filter Pump stabilizer & Gain flattening filter ITU FBG filter Tunable filter ITU FBG filter Pump stabilizer & Gain flattening filter E/O Wave locker Monitor Monitor sensor Available Developing

FBG-based OADM FBG itself provides unique functions: Very low insertion loss Flat-top response Steep slope Very high channel isolation Best choice for 50G OADM TFF can’t match the specs AWG can’t match the cost 100G 50G Flat-top Steep slope High ch. isolation Low IL FBG, the best choice for 2/4/8 ch 50G OADM

FBG-based Gain Flattening Filter FBG provides unique features for GFF Short prototyping lead time Accurate gain profile fitting Flexible order qty FBG benefits over TFF  Time saving for spec-in  Cost saving for model introduction & ramp up  Economic ordering qty to reduce inventory

Laser Stabilizer & Wavelength Locker FBG acts as an external mirror or cavity for laser diode Fixed laser emission behavior Enhance accuracy Allow production tolerance Stabilizer  Makes EDFA design easier and accurate Wavelength Locker  Allows narrower bandwidth and higher channel counts

NTE Ceramic Athermal Package Zirconium Tungstate (ZrW 2 O 8 ), the incredible shrinking materials Negative thermal expansion crystallized structure Compensates for FBG thermal effects CTE tuning range good for photosensitive specialty fiber thermal compensation Compact Minimize FBG packaging Possible multi-FBG package

Broptics Advantages Service TechnologiesCost Time Versatile FBG technologies Packaging technologies Made in Taiwan efficiency Low operation overhead Fast customer prototyping Efficient production Quick response to customers Strong technical support