US 11,726,385 B2
Optical source and supercontinuum light generation apparatus
Cameron Lesley Colwell Smith, Copenhagen (DK); Alexandra Lupi, Frederiksberg (DK); Martin Erland Vestergaard Pedersen, Allerød (DK); Jens Kristian Lyngsø, Hornbæk (DK); and Martin D. Maack, Kgs. Lyngby (DK)
Assigned to NKT PHOTONICS A/S, Birkerod (DK)
Appl. No. 17/921,494
Filed by NKT PHOTONICS A/S, Birkerød (DK)
PCT Filed Apr. 27, 2021, PCT No. PCT/EP2021/060912
§ 371(c)(1), (2) Date Oct. 26, 2022,
PCT Pub. No. WO2021/219592, PCT Pub. Date Nov. 4, 2021.
Claims priority of application No. 20171612 (EP), filed on Apr. 27, 2020.
Prior Publication US 2023/0092715 A1, Mar. 23, 2023
Int. Cl. G02F 1/35 (2006.01); G02F 1/365 (2006.01)
CPC G02F 1/3528 (2021.01) [G02F 1/3503 (2021.01); G02F 1/365 (2013.01); G02F 2202/32 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A supercontinuum light generation apparatus, comprising:
a pump light source configured to provide circularly polarised pump light;
a twisted photonic crystal fibre (PCF) arranged to receive the circularly polarised pump light and to convert the pump light into circularly polarised supercontinuum light; and
a wideband quarter-wave retarder arranged to convert the circularly polarised supercontinuum light into linearly polarised supercontinuum light.