(02/15/2024)  Prof. Kim is awarded Laser Science Award from Optical Society of Korea (OSK). (12/15/2023)  A new paper on a compact and robust laser stabilization method is published in APL Photonics.                       It is also selected as a Featured Article of APL Photonics. (12/08/2023)  A new paper on pulse interleaving time error detection method is published in Optics Letters. (12/01/2023)  Alumnus Dr. Yongjin Na received the Outstanding Doctoral Thesis Award from KAIST ME. (11/16/2023)  Prof. Kim is appointed as an IEEE Photonics Society Distinguished Lecturer for 2024. (08/30/2023)  Minji is awarded Outstanding Student Paper Award from OSK-Optica-OSJ Joint Symposia 2023. (05/04/2023)  A review paper on multilayer nanometrology is published in Nanomanufacturing and Metrology. (04/25/2023)  A new paper on photonic clock distribution in CMOS chips is published in Nature Communications.                       It is also featured in Research Highlights (entitled "Chips with a pulse") of Nature Electronics. (02/17/2023)  Yongjin Na received PhD Dissertation Award from the Dean of KAIST College of Engineering. (02/17/2023)  Changmin's paper is awarded Outstanding Paper Award from OSK Winter Conference 2023. (02/15/2023)  A new paper on ultrafast line-scan TOF camera is published in Light: Science & Applications. (12/06/2022)  A new paper on rapid absolute distance metrology is published in Optics & Lasers in Engineering. (11/08/2022)  Prof. Kim is elected as a Fellow of Optica (formerly, Optical Society of America (OSA)). (09/08/2022)  Prof. Kim is appointed as a Topical Editor (in ultrafast optics and frequency combs) of Optics Letters. (09/05/2022)  A new paper on 3D surface profilometry of silicon devices is published in IEEE Photonics Journal. (06/16/2022)  Prof. Kim contributed a commentary on chip-scale optical amplifiers in Perspective section of Science. (06/01/2022)  We are awarded NST Creative Allied Project (CAP) with KRISS, KASI and KISTI on VLBI networks. (01/19/2022)  A new paper on ultrastable photonic microwave generation is published in Nature Communications. (01/14/2022)  A new paper on ultrastable comb-microwave synchronization is published in Photonics Research. (12/03/2021)  Minji and Changmin are awarded Outstanding Paper Award from OSK Photonics Conference 2021. (11/24/2021)  An MOU is signed with 5 national institutes for extreme-precision space-time convergence research. (10/28/2021)  Alumnus Dr. Dohyeon Kwon received the Outstanding Doctoral Thesis Award from KAIST ME. (09/08/2021)  A new paper on pulse shaping-based microwave extraction is published in Scientific Reports. (07/07/2021)  Mr. Jeon is awarded Outstanding Paper Award from OSK Optics and Photonics Congress 2021. (02/11/2021)  A new paper on UED timing is published as a Front Cover paper of Laser & Photonics Reviews. (01/12/2021)  A new paper on multilayer thickness metrology is published in Light: Advanced Manufacturing. (11/26/2020)  A new paper with Korea Univ on 360-fs-resolution TDC in 65-nm CMOS is published in IEEE-JSSC. (11/10/2020)  Mr. Yongjin Na is selected as the recipient of Woodeok Foundation Graduate Fellowship. (11/10/2020)  Ms. Minji Hyun is selected as the recipient of Outstanding Master Graduate Award from KAIST ME. (10/07/2020)  Prof. Kim is selected as Scientist of the Month awarded by Ministry of Science and ICT of Korea. (10/01/2020)  A new paper with CU Boulder on ultralow-jitter fiber resonator is published in Physical Review Letters. (08/28/2020)  A new paper with KAIST Lee's group on ultralow-jitter 22-GHz silica microcomb is published in Optica. (07/22/2020)  A new paper on attosecond timing by photocurrent pulses is published in Nature Communications. (06/01/2020)  A new paper on EOS-based multiple laser-microwave synchronization is published in Optics Letters. (03/27/2020)  A new paper on all-fiber-photonic multiple comb stabilization is published in Science Advances. (02/10/2020)  A new paper on ultrafast and ultra-precise TOF detection method is published in Nature Photonics. (12/23/2019)  The KAERI-UED system based on our synchronization technique is published in Nature Photonics. (12/10/2019)  Mr. Yongjin Na received Outstanding Master's Graduate Award from KAIST ME. (07/17/2019)  Two Outstanding Paper Awards are awarded at OSK Summer Meeting 2019. (06/08/2019)  A new paper on radiation test of graphene mode-locked lasers is published in Photonics Research. (05/09/2019)  Our work on ultra-low-jitter photocurrent pulses is selected as Chairs' Pick Paper at CLEO 2019. (05/06/2019)  A new paper on low-noise rep-rate multiplication with gain-saturated SOA is published in IEEE-PTL. (02/15/2019)  A new paper on robust and low-noise all-PM-fiber NALM laser is published in Optics Letters. (09/17/2018)  A new paper on injection locking-based rep-rate multiplication is published in Scientific Reports. (09/01/2018)  A new paper with NUAA on PolM-based microwave phase detection is published in IEEE/OSA JLT. (08/10/2018)  A new paper on sub-fs-resolution optical-microwave phase detector is published in Optics Letters. (08/07/2018)  Mr. Kwon receives Global PhD Fellowship from National Research Foundation of Korea (NRF). (03/16/2018)  A new paper with PKU on precise measurement of stepped structure is published in Optics Letters. (02/28/2018)  We are awarded Mid-Career Research Type-III Grant (prev. National Research Lab Program)                       from National Research Foundation of Korea (NRF). (02/22/2018)  Prof. Kim is awarded Outstanding Teaching Award from KAIST ME for lecturing Modeling & Control. (02/09/2018)  Ms. Kim is awarded Outstanding Student Paper Award from OSK Winter Meeting 2018. (02/08/2018)  Prof. Kim is awarded Haelim Photonics Award from Optical Society of Korea (OSK). (12/12/2017)  A new paper with NUAA on ultralow-noise X-band synthesizer is published in Photonics Research. (12/08/2017)  A new paper on all-fiber-based repetition-rate stabilization method is published in Optics Letters. (10/17/2017)  A new paper with Peking Univ on ultra-sensitive strain sensors is published in Scientific Reports. (10/05/2017)  A new paper on broadband RIN suppression by optical filtering is published in Optics Letters. (09/28/2017)  We are awarded prestigious Creative ICT Grant from Samsung Future Research Center. (09/06/2017)  UPCaM alumnus Dr. Chur Kim received Outstanding Doctoral Thesis Award from KAIST ME. (03/31/2017)  A new paper on PLC-based robust PM mode-locked Er-fiber lasers is published in Optics Letters. (01/19/2017)  A new paper on reference-free timing jitter measurement method is published in Scientific Reports. (01/09/2017)  A new paper with KAERI on photocathode laser-rf synchronization is published in Scientific Reports. (10/15/2016)  An invited paper on femtosecond-laser-based microwave photonics is published in IEEE/OSA JLT. (10/04/2016)  Prof. Kim delivered an invited tutorial lecture at IEEE Photonics Society Annual Meeting 2016. (08/26/2016)  An invited review article on low-noise fiber combs is published in Advances in Optics and Photonics. (05/12/2016)  Mr. Shin is awarded Best Poster Award from Asia-Pacific Laser Symposium (APLS) 2016. (02/11/2016)  Our work is selected as one of the KAIST Top 10 Research Accomplishments of 2015. (01/22/2016)  Mr. Shin is awarded Outstanding Student Paper Award from OSK Winter Meeting 2016. (01/16/2016)  A new paper with Tianjin Univ on ultralow-jitter ps-fiber lasers is published in Optics Express. (12/24/2015)  Prof. Kim is awarded KAIST Technology Innovation Award (Outstanding Prize) 2015. (11/05/2015)  A new paper on ultralow-noise all-fiber photonic signal generator is published in Scientific Reports.                       It is also covered by major national news media (including Chosun Ilbo, YTN, and Yonhap News). (10/20/2015)  A new paper with MPQ on laser-electron synchronization is published in Physical Review Applied. (09/28/2015)  A new paper on all-fiber lasers mode-locked by PLC-CNT-SA is published in Optics Express. (08/21/2015)  A new paper on numerical analysis of timing jitter in fiber lasers is published in Optics Express. (06/04/2015)  Two Outstanding Student Paper Awards are awarded to Mr. Jung and Mr. Jeon at COOC 2015. (05/14/2015)  Prof. Kim delivered an invited talk on ultralow-noise mode-locked fiber lasers at CLEO 2015. (04/13/2015)  Mr. Jung is one of the Student Paper Competition Finalists for 3 years in a row at IEEE-IFCS. (01/17/2015)  A new paper on low-offset-frequency jitter measurement method is published in Optics Letters. (11/06/2014)  A new paper on filtering-induced noise reduction in fiber lasers is published in Optics Express. (10/16/2014)  A new paper on stable indoor free-space comb transfer is published in Optics Express. (03/19/2014)  A new paper on remote laser-RF synchronization in an accelerator is published in IEEE/OSA JLT. (03/12/2014)  A new paper on ultrahigh-stability RF transfer over a fiber link is published in Optics Letters. (01/09/2014)  A new paper on ultra-low jitter Yb-fiber lasers is published in IEEE JSTQE. (12/17/2013)  A new paper on GHz rep rate, sub-fs jitter optical pulse train is published in Optics Letters. (10/28/2013)  A new paper on sub-fs jitter all-fiber lasers at telecom wavelength is published in Optics Express. (06/14/2013)  A new paper on ultralow noise microwave generation is published in IEEE Photonics Journal. (02/20/2013)  Mr. Yang is awarded Outstanding Student Paper Award from OSK Winter Meeting 2013. (12/31/2012)  A pair of papers on CNT-mode-locked solid-state and fiber lasers are published in Optics Express. (12/06/2012)  Mr. Kim is awarded Outstanding Student Paper Award from Photonics Conference 2012. (07/15/2012)  A new paper on attosecond laser-microwave synchronization is published in Optics Letters. (05/14/2012)  Prof. Kim is elevated to Senior Member of IEEE and OSA. (03/07/2012)  Prof. Kim is appointed to one of the KAIST Ewon Assistant Professors. (11/15/2011)  A new paper on record-low 70-as timing jitter from Er-fiber lasers is published in Optics Letters.                       It is further featured in Research Highlights of February 2012 issue of Nature Photonics. (07/13/2011)  A new paper on timing jitter optimization of Yb-fiber lasers is published in Optics Express. (05/05/2011)  A new paper on pulse dynamics-dependent timing jitter is published in Optics Letters. (12/02/2010)  Ms. Kim is awarded Outstanding Student Paper Award from Photonics Conference 2010. (07/06/2010)  Prof. Kim is awarded Outstanding Teaching Award from KAIST ME for lecturing Applied Electronics. (06/09/2010)  A new paper with MIT on ultra-low drift RF extraction from fiber comb is published in Optics Letters. (05/01/2010)  A new paper is selected as the front cover of April 2010 issue of Laser and Photonics Reviews;                       It is further featured (entitled "Ultra-precise and ultra-fast") on Materials Views. (09/01/2009)  KAIST Ultra-Scale Photonic Control and Measurement Group is established.