US 11,703,635 B2
Delivery fiber assembly and a broad band source
Johannes Weirich, Copenhagen N (DK); and Martin Dybendal Maack, Kongens Lyngby (DK)
Assigned to NKT PHOTONICS A/S, Birkerød (DK)
Filed by NKT PHOTONICS A/S, Birkerød (DK)
Filed on Aug. 19, 2021, as Appl. No. 17/406,646.
Application 17/406,646 is a continuation of application No. 16/871,297, filed on May 11, 2020, granted, now 11,137,541.
Application 16/871,297 is a continuation of application No. 15/738,623, granted, now 10,649,136, issued on May 12, 2020, previously published as PCT/DK2016/050221, filed on Jun. 24, 2016.
Prior Publication US 2021/0382230 A1, Dec. 9, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 6/02 (2006.01); G02B 6/024 (2006.01); A61B 5/00 (2006.01); G01B 9/02091 (2022.01); G02B 6/28 (2006.01); G02B 6/293 (2006.01); G02B 21/00 (2006.01); G02B 23/24 (2006.01); H01S 3/23 (2006.01)
CPC G02B 6/02357 (2013.01) [A61B 5/0066 (2013.01); G01B 9/02091 (2013.01); G02B 6/024 (2013.01); G02B 6/02347 (2013.01); G02B 6/02361 (2013.01); G02B 6/2821 (2013.01); G02B 6/2938 (2013.01); G02B 6/29389 (2013.01); G02B 21/0032 (2013.01); G02B 23/2469 (2013.01); H01S 3/2308 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A source for supplying light, the source comprising:
a broad band source configured to generate broad band light pulses; and
a microstructured delivery fiber having a longitudinal axis, an input end for launching light and a delivery end for delivering light, the microstructured delivery fiber comprising a core region and a cladding region surrounding the core region, wherein the core region has a diameter of up to about 15 μm and the cladding region comprises a cladding background material having a refractive index Nbg and a plurality of inclusions of solid material having refractive index of up to Ninc and extending in the direction of the longitudinal axis of the microstructured delivery fiber, wherein Ninc<Nbg and the plurality of inclusions in the cladding region is arranged in a cross-sectional pattern comprising at least two rings of inclusions surrounding the core region, the microstructured delivery fiber having a transmission bandwidth of about 200 nm or more;
wherein the microstructured delivery fiber is arranged for receiving at least a portion of the broad band light pulses for delivering at least a part of the received portion of the broad band light pulses.