Imperial College London


Faculty of Natural SciencesDepartment of Physics

Professor of Physics and Vice Dean (Research) - FoNS



+44 (0)20 7594 7706paul.french Website




Ms Judith Baylis +44 (0)20 7594 7713




609Blackett LaboratorySouth Kensington Campus






BibTex format

author = {sherlock, B and Yu, F and Stone, J and Warren, S and Paterson, C and Neil, MAA and French, PMW and Dunsby, CW},
doi = {10.1002/jbio.201500290},
journal = {Journal of Biophotonics},
pages = {715--720},
title = {Tunable fibre-coupled multiphoton microscopy with a negative curvature fibre},
url = {},
volume = {9},
year = {2016}

RIS format (EndNote, RefMan)

AB - Negative curvature fibre (NCF) guides light in its core by inhibiting the coupling of core andcladding modes. In this work, an NCF was designed and fabricated to transmit ultrashort opticalpulses for multiphoton microscopy with low group velocity dispersion (GVD) at 800 nm. Itsattenuation was measured to be <0.3 dB.m-1over the range 600-850 nm and the GVD was-180±70 fs2.m-1at 800 nm. Using an average fibre output power of ~20 mW and pulserepetition rate of 80 MHz, the NCF enabled pulses with a duration of <200 fs to be transmittedthrough a length of 1.5 m of fibre over a tuning range of 180 nm without the need for dispersioncompensation. In a 4 m fibre, temporal and spectral pulse widths were maintained to within10% of low power values up to the maximum fibre output power achievable with the lasersystem used of 278 mW at 700 nm, 808 mW at 800 nm and 420 mW at 860 nm. When coupledto a multiphoton microscope, it enabled imaging of ex vivo tissue using excitation wavelengthsfrom 740 nm to 860 nm without any need for adjustments to the set-up.
AU - sherlock,B
AU - Yu,F
AU - Stone,J
AU - Warren,S
AU - Paterson,C
AU - Neil,MAA
AU - French,PMW
AU - Dunsby,CW
DO - 10.1002/jbio.201500290
EP - 720
PY - 2016///
SN - 1864-0648
SP - 715
TI - Tunable fibre-coupled multiphoton microscopy with a negative curvature fibre
T2 - Journal of Biophotonics
UR -
UR -
VL - 9
ER -