Optical waveform monitoring based on a free-running mode-locked femtosecond fibre laser and four-wave mixing in a highly nonlinear fibre

Journal article


Zhang, J., Liu, Y and Tang, D (2016). Optical waveform monitoring based on a free-running mode-locked femtosecond fibre laser and four-wave mixing in a highly nonlinear fibre. Opto-Electronics Review. 24 (2), pp. 62-74.
AuthorsZhang, J., Liu, Y and Tang, D
Abstract

Optical sampling based on ultrafast optical nonlinearities is a useful technique to monitor the waveforms of ultrashort optical pulses. In this paper, we present a new implementation of optical waveform sampling systems by employing our newly constructed free-running mode-locked fibre laser with a tunable repetition rate and a low timing jitter, an all-optical waveform sampler with a highly nonlinear fibre (HNLF), and our developed computer algorithm for optical waveform display and measurement, respectively. Using a femtosecond fibre laser to generate the highly stable optical sampling pulses and exploiting the four-wave mixing effect in a 100m-long HNLF, we successfully demonstrate the all-optical waveform sampling of a 10GHz optical clock pulse sequence with a pulse width of 1.8 ps and a 80Gbit/s optical data signal, respectively. The experimental results show that the waveforms of the tested optical pulse signals are accurately reproduced with a pulse width of 2.0 ps. This corresponds to a temporal resolution of 0.87 ps for optical waveform measurement. Moreover, the optical eye diagram of a 10Gbit/s optical data signal with a 1.8ps pulse width is also accurately measured by employing our developed optical sampling system.

Year2016
JournalOpto-Electronics Review
Journal citation24 (2), pp. 62-74
PublisherDe Gruyter
ISSN1896-3757
Digital Object Identifier (DOI)doi:10.1515/oere-2016-0010
Web address (URL)https://www.degruyter.com/view/j/oere.2016.24.issue-2/oere-2016-0010/oere-2016-0010.xml
Publication dates
Print21 Apr 2016
Publication process dates
Deposited28 Jun 2016
Accepted21 Mar 2016
Accepted author manuscript
License
CC BY-NC-ND 4.0
File Access Level
Open
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https://openresearch.lsbu.ac.uk/item/87463

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