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[34] Optical phase detector using electric pulse, and sensing system
J. Kim, Y. Na
US Patent 11,486,982 (issued on November 1, 2022).

[33] Optical frequency and microwave frequency synthesizing apparatus and method using all optical fiber interferometer with delay line
J. Kim, D. Kwon
US Patent 11,303,093 (issued on April 12, 2022).

[32] Integrated optical-microwave phase detecting apparatus and method based on 3x3 MMI coupler
J. Kim, K. Yu, Y. Jeong, C. Jeon
US Patent 11,274,970 (issued on March 15, 2022).

[31] System for generating low-jitter digital clock signals using pulsed laser
J. Kim, H. Chung, M. Hyun, Y. Na
US Patent 11,082,032 (filed on February 26, 2020; issued on August 3, 2021).

[30] Optical frequency and microwave frequency synthesizing apparatus and method using all optical fiber interferometer with delay line
J. Kim, D. Kwon
US Patent 10,826,265 (filed on September 17, 2019; issued on November 3, 2020).

[29] Method and apparatus for providing low noise radar signal generator
J. Kim
Korean Patent 10-2169816 (filed on September 12, 2018; issued on October 20, 2020).

[28] Optical frequency and microwave frequency synthesizing apparatus and method using all optical fiber interferometer with delay line
J. KIm, D. Kwon
Korean Patent 10-2163546 (filed on September 18, 2018; issued on September 29, 2020).

[27] Pulse laser-based clock distribution networks
J. Kim, H. Chung
Korean Patent 10-2161837 (filed on June 4, 2019; issued on September 24, 2020).

[26] Multi-channel optical phase detector, multi-channel sensing system and multi-laser synchronization system
J. Kim, C. Jeon, Y. Na, D. Kwon
Korean Patent 10-2152990 (filed on February 15, 2019; issued on September 1, 2020).

[25] Àü±â ÆÞ½º¸¦ ÀÌ¿ëÇÏ´Â ±¤ À§»ó °ËÃâ±â, ±×¸®°í À̸¦ Æ÷ÇÔÇÏ´Â ¼¾½Ì ½Ã½ºÅÛ
J. Kim, Y. Na
Korean Patent 10-2141704 (filed on February 15, 2019; issued on July 30, 2020).

[24] ±¤ ÆÞ½º ÆÄ¿ö º¯È­¿¡ ¹«°üÇÑ ±¤ À§»ó °ËÃâ±â ±â¹Ý ¼¾½Ì ½Ã½ºÅÛ
J. Kim, Y. Na
Korean Patent 10-2141705 (filed on February 15, 2019; issued on July 30, 2020).

[23] ±¤ ÆÞ½º¿Í ¸¶ÀÌÅ©·ÎÆÄ ½ÅÈ£ °£ÀÇ À§»ó ¿ÀÂ÷¸¦ °ËÃâÇÏ´Â ¹æ¹ý ¹× ÀåÄ¡
J. Kim, J. Wei, S. Pan
Korean Patent 10-2100563 (filed on August 20, 2018; issued on April 7, 2020).

[22] »ç³Å ·çÇÁ¸¦ ÀÌ¿ëÇÑ ±¤½ÅÈ£¿Í ÀüÀÚ½ÅÈ£ °£ À§»ó °ËÃâ±â ¹× À§»ó °ËÃâ ¹æ¹ý
J. Kim, B. Lee, J. Hong, C. Jeon, Y. Na
Korean Patent 10-2097935 (filed on December 18, 2018; issued on April 1, 2020).

[21] 3X3 MMI Ä¿Ç÷¯ ±â¹Ý ÁýÀûÇü ±¤-¸¶ÀÌÅ©·ÎÆÄ À§»ó °ËÃâ ÀåÄ¡ ¹× ¹æ¹ý
J. Kim, K. Yu, Y. Jeong, C. Jeon
Korean Patent 10-2096084 (filed on February 28, 2019; issued on March 26, 2020).

[20] Àü-Æí±¤À¯Áö ±¤¼¶À¯ ¸ðµå Àá±Ý ·¹ÀÌÀú
J. Kim, D. Kim, B. Lee
Korean Patent 10-2089259 (filed on August 14, 2018; issued on March 10, 2020).

[19] ÆÞ½º ·¹ÀÌÀú¸¦ ÀÌ¿ëÇÑ Àú-ÁöÅÍ µðÁöÅРŬ·° ½ÅÈ£ »ý¼º ½Ã½ºÅÛ, ±×¸®°í ¸¶ÀÌÅ©·ÎÆÄ »ý¼º ½Ã½ºÅÛ
J. Kim, H. Chung, M. Hyun, Y. Na
Korean Patent 10-2087192 (filed on April 30, 2019; issued on March 4, 2020).

[18] ¸ðµå Àá±Ý ·¹ÀÌÀúÀÇ ¼¼±â ÀâÀ½À» ¾ïÁ¦ÇÏ´Â ÀåÄ¡ ¹× ¹æ¹ý
J. Kim, D. Kim
Korean Patent 10-2041679 (filed on Sep 28, 2017; issued on Oct 31, 2019).

[17] ·¹ÀÌÀú ÆÞ½ºÀÇ ºñÇà½Ã°£ °ËÃâÀ» ÀÌ¿ëÇÏ´Â ´ÜÂ÷ ³ôÀÌ ÃøÁ¤ ½Ã½ºÅÛ
J. Kim
Korean Patent 10-2010172 (filed on Feb 7, 2018; issued on Aug 6, 2019).

[16] Method for measuring and suppressing phase noise of repetition rate of a femtosecond laser by optical fiber delay line
J. Kim, K. Jung
US Patent 10,158,208 (filed on Sep 15, 2017; issued on Dec 18, 2018)

[15] Planar lightwave circuit based integrated optical chip
J. Kim, C. Kim
US Patent 10,139,562 (filed on Jan 19, 2018; issued on Nov 27, 2018)

[14] ÆÞ½º ·¹ÀÌÀúÀÇ ±¤ ÆÞ½º¿­¿¡ ´ëÇÑ ºñÇà½Ã°£ °ËÃâÀ» ÀÌ¿ëÇÏ´Â º¯Çü·ü ¼¾½Ì ½Ã½ºÅÛ
J. Kim, S. Zhang, K. Shi, X. Lu
Korean Patent 10-18866691 (filed on Apr 20, 2017; issued on Jun 4, 2018)

[13] ·¹ÀÌÀúÀÇ µ¿±âÈ­ ÀåÄ¡ ¹× ¹æ¹ý
J. Kim, H. Yang
Korean Patent 10-18866650 (filed on Aug 20, 2016; issued on Jun 4, 2018)

[12] ÆÞ½º ·¹ÀÌÀúÀÇ ¹Ýº¹·ü À§»ó ÀâÀ½ ÃøÁ¤ ¹æ¹ý ¹× ÀåÄ¡
J. Kim, D. Kwon
Korean Patent 10-1856882 (filed on Dec 23, 2016; issued on May 3, 2018)

[11] ¼ö¹é µ¥½Ãº§ÀÇ ´ÙÀ̳»¹Í ·¹ÀÎÁö¸¦ °®´Â ÆèÅäÃÊ ·¹ÀÌÀúÀÇ Å¸ÀÌ¹Ö ÁöÅÍ ÃøÁ¤ ¹æ¹ý ¹× ÀåÄ¡
J. Kim, K. Jung
Korean Patent 10-1832553 (filed on Jan 12, 2015; issued on Feb 20, 2018)

[10] Æò¸éÇü ±¤ÆÄ È¸·Î ±â¹ÝÀÇ ÁýÀû ±¤ÇРĨ
J. Kim, C. Kim
Korean Patent 10-1788400 (filed on Sep 25, 2015; issued on Oct 13, 2017)

[9] Æ÷È­ Èí¼öü ¹× ±× Á¦Á¶ ¹æ¹ý, ±×¸®°í À̸¦ ÀÌ¿ëÇÑ ÆÞ½º ·¹ÀÌÀú ÀåÄ¡
J. Kim, C. Kim
Korean Patent 10-1787209 (filed on Dec 31, 2015; issued on Oct 11, 2017)

[8] ±¤¼¶À¯ Áö¿¬ ¶óÀÎÀ» ÀÌ¿ëÇÑ ÆèÅäÃÊ ·¹ÀÌÀúÀÇ ¹Ýº¹·ü À§»ó ÀâÀ½ ÃøÁ¤ ¹× ¾ïÁ¦ ¹æ¹ý
J. Kim, K. Jung
Korean Patent 10-1687118 (filed on Oct 12, 2015; issued on Dec 9, 2016).

[7] ÆèÅäÃÊ ¸ðµå Àá±ÝµÈ ·¹ÀÌÀú ¹× À§»ó µ¿±â ·çÇÁÀÇ ÇöóÀÌÈÙ È¿°ú¸¦ ÀÌ¿ëÇÑ ÃÊÀú À§»ó ÀâÀ½ ¸¶ÀÌÅ©·ÎÆÄ ¹ßÁø ¹æ¹ý ¹× ÀåÄ¡
J. Kim, K. Jung
Korean Patent 10-1388727 (filed on Jul 3, 2013; issued on Apr 17, 2014).

[6] ±¤¼¶À¯ ±¤±â¹Ý ±ÕÇü ±¤¼¼±â ŽÁö¹ýÀ» ÀÌ¿ëÇÑ ±¤½ÅÈ£¿Í ÀüÀÚ½ÅÈ£ °£ À§»ó ŽÁö±â ¹× À§»ó ŽÁö ¹æ¹ý
J. Kim, K. Jung
Korean Patent 10-1331980 (filed on Feb 6, 2012; issued on Nov 15, 2013).

[5] Compact background-free balanced cross-correlators
F. X. Kartner, J. Kim, F. N. C. Wong
US Patent 7,940,390 (issued May 10, 2011).

[4] Synchronization of lasers and RF-sources using timing information transfer in the optical domain
F. X. Kartner, J. Kim, M. H. Perrott
US Patent 7,593,644 (issued Sep 22, 2009).

[3] Balanced optical-radiofrequency phase detector
F. X. Kartner, J. Kim
US Patent 7,397,567 (issued Jul 8, 2008).

[2] Multi-layer thin-film broadband beam splitter with matched group delay dispersion
F. X. Kartner, J. Kim
US Patent 7,256,940 (issued Aug 14, 2007).

[1] ¹Ýº¹ÀûÀÎ °í¼Ó Æí±¤ ½ºÅ©·¥ºí¸µÀ» ÀÌ¿ëÇÑ Æí±¤ÀÇÁ¸¼º ¼Õ½ÇÃøÁ¤ÀåÄ¡ ¹× ¹æ¹ý (Apparatus and method for measuring polarization dependent loss using repeated high speed polarization scrambling)
Y. W. Koh, J. Kim, B. W. Lee
Korean Patent 10-0380255 (issued Apr 2, 2003); Chinese Patent 1459037 (issued Nov 26, 2003); US Patent 6,657,709 (issued Dec 2, 2003); European Patent 1 368 678 (issued Oct 19, 2005); Canadian Patent 2409182 (issued Nov 17, 2009).