公开(公告)号：US20200154993A1

公开(公告)日：2020-05-21

申请号：US16581912

申请日：2019-09-25

Applicant: NKT PHOTONICS A/S

Inventor： Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN ,  Thomas FEUCHTER

IPC: A61B3/00 ,  G02F1/35 ,  A61B3/10 ,  G02F1/365 ,  H01S5/00 ,  H01S5/065

Abstract: A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency Fseed; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fseed to pump pulses with a pulse frequency Fpump, where Fpump is larger than Fseed; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio.

公开(公告)号：US20160170136A1

公开(公告)日：2016-06-16

申请号：US14903762

申请日：2014-07-07

Applicant: NKT PHOTONICS A/S

Inventor： Jeppe JOHANSEN ,  Ole BANG ,  Casper LARSEN ,  Thomas FEUCHTER ,  Carsten L. THOMSEN ,  Thomas Vestergaard ANDERSEN

IPC: G02B6/02 ,  G02F1/365 ,  G01B9/02 ,  H01S3/094 ,  H01S3/11 ,  G02B6/255 ,  H01S3/067

CPC classification number: G02B6/02376 ,  G01B9/02091 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02347 ,  G02B6/02361 ,  G02B6/255 ,  G02F1/353 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2202/32 ,  H01S3/06725 ,  H01S3/06729 ,  H01S3/094042 ,  H01S3/094076 ,  H01S3/1106

Abstract: The invention relates to a microstructured optical fiber for generating incoherent supercontinuum light upon feeding of pump light. The microstructured optical fiber has a first section and a second section. A cross-section through the second section perpendicularly to a longitudinal axis of the fiber has a second relative size of microstructure elements and preferably a second pitch that is smaller than a blue edge pitch for the second relative size of microstructure elements. The invention also relates to an incoherent supercontinuum source comprising a microstructured optical fiber according to the invention.

Abstract translation: 本发明涉及一种用于在馈送泵浦光时产生非相干超连续光的微结构光纤。 微结构光纤具有第一部分和第二部分。 通过垂直于纤维的纵向轴线的第二部分的横截面具有微结构元件的第二相对尺寸，并且优选地具有小于用于第二相对尺寸的微结构元件的蓝色边缘间距的第二间距。 本发明还涉及包含根据本发明的微结构光纤的非相干超连续谱源。