Inventor · disambiguated record
Do-Il Chang
Also filed as: CHANG DO-IL
25 granted patents·4 pending applications·203 citations·filing 1998–2017
95Inventor score
Files withXTERA COMMUNICATIONS INC10KOREA ELECTRONICS TELECOMM7CHANG DO-IL3NEPTUNE SUBSEA IP LTD3PELOUCH WAYNE S2
Top patents by PatentIndex Score
29 records- 0189US6426965B1Optical fiber cascaded Raman laser schemeKOREA ELECTRONICS TELECOMM·Filed 2000·Granted Jul 30, 2002·31 cites·8 claims
- 0283US10313020B2Optical transmission system and related remote optically pumped amplifier (ROPA) and methodNEPTUNE SUBSEA IP LTD·Filed 2017·Granted Jun 4, 2019·2 cites·21 claims
- 0383US6163554AOptical fiber raman laserKOREA ELECTRONICS TELECOMM·Filed 1998·Granted Dec 19, 2000·57 cites·5 claims
- 0481US9838136B2Optical transmission system and related remote optically pumped amplifier (ROPA) and methodXTERA COMMUNICATIONS INC·Filed 2016·Granted Dec 5, 2017·2 cites·23 claims
- 0579US9831943B2Repeater OTDR using repeater based raman pumpsXTERA COMMUNICATIONS INC·Filed 2013·Granted Nov 28, 2017·4 cites·23 claims
- 0678US6560251B1Mode-locked laser stabilizing apparatus and method thereofKOREA ELECTRONICS TELECOMM·Filed 2000·Granted May 6, 2003·15 cites·6 claims
- 0777US9461437B2Tilt control through optical pump power adjustmentXTERA COMMUNICATIONS INC·Filed 2014·Granted Oct 4, 2016·3 cites·20 claims
- 0877US8380068B2Distinct dispersion compensation for coherent channelsXTERA COMM INC·Filed 2010·Granted Feb 19, 2013·4 cites·18 claims
- 0975US7665909B2System and method for implementing a high capacity unrepeatered optical communication systemXTERA COMMUNICATIONS INC·Filed 2008·Granted Feb 23, 2010·5 cites·20 claims
- 1075US6560247B2Dual wavelength optical fiber laserKOREA ELECTRONICS TELECOMM·Filed 2001·Granted May 6, 2003·12 cites·7 claims
- 1173US8228598B2Optical amplifier with Raman and rare-earth-doped fiber amplifier both pumped efficiently using direct and reflected pump lightCHANG DO-IL·Filed 2009·Granted Jul 24, 2012·3 cites·17 claims
- 1271US6556596B1Apparatus for generating an optical fiber laser capable of tuning a wavelength thereofKOREA ELECTRONICS TELECOMM·Filed 1999·Granted Apr 29, 2003·35 cites·6 claims
- 1365US7336869B2System and method for implementing a high capacity unrepeatered optical communication systemXTERA COMMUNICATIONS INC·Filed 2006·Granted Feb 26, 2008·2 cites·20 claims
- 1463US8111453B2Submarine optical repeaterPELOUCH WAYNE S·Filed 2009·Granted Feb 7, 2012·3 cites·23 claims
- 1563US8111454B2Optical communication using shared optical pumpsCHANG DO-IL·Filed 2009·Granted Feb 7, 2012·2 cites·13 claims
- 1658US6385216B1Optical fiber mode-locked laserKOREA ELECTRONICS TELECOMM·Filed 1999·Granted May 7, 2002·21 cites·2 claims
- 1756US2017365971A1Multi-span optical communications link having remote optically pumped amplifierNEPTUNE SUBSEA IP LTD·Filed 2017·Application pending·0 cites
- 1855US9735532B2Multi-span optical communications link having remote optically pumped amplifierXTERA COMMUNICATIONS INC·Filed 2015·Granted Aug 15, 2017·0 cites·20 claims
- 1955US8233216B2Optical amplifier bandwidth alterationCHANG DO-IL·Filed 2009·Granted Jul 31, 2012·0 cites·23 claims
- 2053US8145062B2Optical amplifier capable of amplifying optical signals that traverse separate transmission fibersPELOUCH WAYNE S·Filed 2009·Granted Mar 27, 2012·0 cites·17 claims
- 2152US10516477B2Repeater OTDR using repeater based Raman pumpsNEPTUNE SUBSEA IP LTD·Filed 2017·Granted Dec 24, 2019·0 cites·24 claims
- 2247US7869673B2Remote larger effective area optical fiberXTERA COMMUNICATIONS INC·Filed 2008·Granted Jan 11, 2011·0 cites·23 claims
- 2346US8380069B2Introduction-side dispersion shifting of channelsXTERA COMM INC·Filed 2010·Granted Feb 19, 2013·0 cites·19 claims
- 2446US2010183305A1Optical communication using coupled optically pumped amplifiersXTERA COMMUNICATIONS INC·Filed 2009·Application pending·0 cites
- 2545US2010103957A1Fractional raman order pumping in optical communication systemsFEVRIER HERVE A·Filed 2009·Application pending·0 cites
- 2643US7742223B2System and method for implementing a boosterless optical communication systemXTERA COMMUNICATIONS INC·Filed 2006·Granted Jun 22, 2010·0 cites·24 claims
- 2741US7567593B2System and method for fractional Raman order pumping in optical communication systemsXTERA COMMUNICATIONS INC·Filed 2005·Granted Jul 28, 2009·0 cites·20 claims
- 2837US2002001125A1Optical device for generating a plurality of optical signalsFiled 2001·Application pending·0 cites
- 2931US6538804B1Planar waveguide-type optical amplifier switchKOREA ELECTRONICS TELECOMM·Filed 1999·Granted Mar 25, 2003·2 cites·5 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →