Se/Sr Hardware Engineer
Shenzhen, Guangdong, Cn
Served as a key player or team leader for telecom-datacom network, switch/router, 2g/3g, EDFA/GPON/EPON.1) Implemented Hong Kong and Pakistan 3G wireless network transmission projects, used GPON to optimize synchronous clock system design. 3G wireless network application research. Initiator of 3G monitoring network in China.2) Designed line cards (1channel/4channel) for BPOP/GPON OLTs of three versions, used technology of 10GEth Switch and 1000Mbase-t/10g backplane (Seders/CDR). It is the No.1 product on optical network market. Have key patents in GPON/EPON.4) Designed high-density high speed backplane (14layers+/8mm+), including the first Giga-tech Backplane in China (96*2*2Gbps), 1G/10G Ethernet technology, 16*4*10Gbps totally. Simulation and test work involved. The backplane is used in multiple switch/router products. 5) Designed line cards (E1/T1E3/T3 SDH/SONET) for Router (GSR)/ATM switch (Radium 8750/8350)6) Designed Access sever structure line card, revised radius server using c in UNIX, The product can connect 12000 users, occupied 90% market in Asia, deployed >10,1000,1000 ports.7) Researched High speed transmission technology (Geth and fibre channel) in research group: up to 3.125Gbps-10.3Gbps, min 17Ps rise time. Including research of transmission line/PCB material/signal integrity/TDR/simulation, designed high-speed signal generator (BERT) for transmission line test and loop back test to get eye patterns and error rates for ATM switch. Maintained strong experiences in Signal integrity based on actual experiments for high speed.8) Key designer for Multi-wave Laser Source, MWLS handles 40Gbps optical data transmission, Low noise compact design, includes daughter cards of integrated EDFA, high power EDFA, DFB driver, Display, LD/PD/TEC controller. Designed EDFA and RAMAN laser drivers. Including analog version (using analog circuit for mathematic calculation) and digital version.