F. Koch
Imperial College London
11 Papers
205 Citations
F. Koch is an academic researcher from Imperial College London. The author has contributed to research in topics: Dispersion (optics) & Fiber laser. The author has an hindex of 7, co-authored 11 publications.
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Papers
Dispersion measurement in optical fibres over the entire spectral range from 1.1 μm to 1.7 μm
TL;DR: Using a supercontinuum fiber laser, the authors measured the dispersion of optical fiber over the 1.1-1.7μm spectral window in silica fiber. And they used a super-continuum laser to measure the optical fiber dispersion.
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Multi-wavelength, continuous wave fibre Raman ring laser operating at 1.55 [micro sign]m
TL;DR: In this article, a four-wavelength continuous wave, fiber Raman ring laser has been demonstrated at room temperature using fiber Bragg gratings as the wavelength-selective elements with applications as a multiwavelength source for optical fiber telecommunications.
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Broadband gain flattened Raman amplifier to extend operation in the third telecommunication window
F. Koch,S.A.E. Lewis,S.V. Chernikov,James Taylor,V. Grubsky,D.S. Starodubov +5 more
- 07 Mar 2000
TL;DR: In this paper, the gain flattening of dual stage dual wavelength pumped fiber Raman amplifiers was reported, flattening the gain using long period fibre grating and a first order interferometric filter.
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Broadband Raman gain characterisation in various optical fibres
TL;DR: In this paper, the Raman gain coefficient of optical fibres has been quantified using a sensitive technique based upon the measurement of backward amplified spontaneous emission, and the effect of the variation of germanium doping in the fibre is also reported.
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Low-noise high gain dispersion compensating broadband Raman amplifier
S.A.E. Lewis,F. Koch,S.V. Chernikov,James Taylor +3 more
- 07 Mar 2000
TL;DR: In this article, a Raman gain module compensating for both loss and dispersion of a 40 km standard telecommunication fiber span over the 1510-1565 nm band is reported.
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