US 11,719,881 B2
Photonic crystal fiber, a method of production thereof and a supercontinuum light source
Thomas Tanggaard Alkeskjold, Jyllinge (DK); Casper Laur Byg, Kvistgård (DK); Christian Jakobsen, Virum (DK); Jens Kristian Lyngsøe, Hornbaek (DK); Kim G. Jespersen, Lyngby (DK); Jeppe Johansen, København (DK); Martin Dybendal Maack, Kongens Lyngby (DK); Martin Erland Vestergaard Pedersen, Frederiksberg (DK); and Carsten L. Thomsen, Virum (DK)
Assigned to NKT PHOTONICS A/S, Birkerod (DK)
Filed by NKT Photonics, Birkerød (DK)
Filed on Jul. 1, 2022, as Appl. No. 17/856,415.
Application 17/856,415 is a continuation of application No. 17/181,963, filed on Feb. 22, 2021, granted, now 11,409,033.
Application 17/181,963 is a continuation of application No. 16/786,027, filed on Feb. 10, 2020, granted, now 10,928,584, issued on Feb. 23, 2021.
Application 16/786,027 is a continuation of application No. 16/254,884, filed on Jan. 23, 2019, granted, now 10,557,987, issued on Feb. 11, 2020.
Application 16/254,884 is a continuation of application No. 15/537,005, granted, now 10,228,510, issued on Mar. 12, 2019, previously published as PCT/DK2015/050395, filed on Dec. 15, 2015.
Claims priority of application No. PA 2014 70800 (DK), filed on Dec. 18, 2014.
Prior Publication US 2022/0342148 A1, Oct. 27, 2022
Int. Cl. G02B 6/036 (2006.01); C03B 37/027 (2006.01); C03B 37/10 (2006.01); C03C 13/04 (2006.01); C03C 25/106 (2018.01); C03C 25/1065 (2018.01); C03C 25/607 (2018.01); G02B 6/02 (2006.01); G02B 6/14 (2006.01); G02F 1/365 (2006.01); G02F 1/35 (2006.01)
CPC G02B 6/03694 (2013.01) [C03B 37/0279 (2013.01); C03B 37/02781 (2013.01); C03B 37/10 (2013.01); C03C 13/045 (2013.01); C03C 13/046 (2013.01); C03C 25/1061 (2018.01); C03C 25/1062 (2018.01); C03C 25/1068 (2018.01); C03C 25/607 (2013.01); G02B 6/02347 (2013.01); G02B 6/02357 (2013.01); G02B 6/02361 (2013.01); G02B 6/02395 (2013.01); G02B 6/14 (2013.01); G02F 1/365 (2013.01); C03B 2201/02 (2013.01); C03B 2201/12 (2013.01); C03B 2201/21 (2013.01); C03B 2201/22 (2013.01); C03B 2203/14 (2013.01); C03B 2203/23 (2013.01); C03B 2203/42 (2013.01); C03C 2201/02 (2013.01); C03C 2201/21 (2013.01); C03C 2201/22 (2013.01); G02B 6/02366 (2013.01); G02F 1/3528 (2021.01)] 20 Claims
OG exemplary drawing
 
1. A supercontinuum light source comprising a microstructured optical fiber (MSF) and a pump source arranged to feed pump pulses to a launching end of said MSF, said MSF comprising a solid core extending along the length of a longitudinal axis and a cladding region surrounding the core, wherein at least the cladding region comprises a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the MSF in at least a microstructured length section, wherein the MSF in at least a degradation resistant length section of said microstructured length section comprises hydrogen and/or deuterium and comprises a coating surrounding the cladding region, wherein the coating is hermetic for said hydrogen and/or deuterium at a temperature below Th such that diffusion of hydrogen and/or deuterium through the hermetic coating of the MSF is less than 1% per day, wherein Th is at least about 50° C.