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Technique for the measurement of picosecond optical pulses using a non-linear fiber loop mirror and an optical power meter

Technique for the measurement of picosecond optical pulses using a non-linear fiber loop mirror and an optical power meter
Technique for the measurement of picosecond optical pulses using a non-linear fiber loop mirror and an optical power meter

A method for measuring picosecond pulse width by using only fiber components and optical power meters is presented. We have shown that the output power splitting ratio of a non-linear fiber loop mirror can be used to extract the full-width half maximum of the optical pulse, assuming a known slowly varying envelope shape and internal phase structure. Theoretical evaluation was carried out using both self-phase and cross-phase modulation approaches, with the latter showing a twofold sensitivity increase, as expected. In the experimental validation, pulses from an actively fiber mode-locked laser at the repetition rate of 10 GHz were incrementally temporally dispersed by using SMF–28 fiber, and then successfully measured over a pulse width range of 2–10 ps, with a resolution of 0.25 ps. This range can be easily extended from 0.25 to 40 ps by selecting different physical setup parameters.

1094-4087
6377-6388
Korai, Umair A.
048de1dc-6c3c-418a-969c-ebb8e880dfed
Wang, Zifei
40668556-2d9a-40f5-82b4-e7f4a4090a5a
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
Chen, Lawrence R.
07f19517-3b50-4455-8515-b164b3b5aa6a
Glesk, Ivan
5dee95d7-37db-43d8-96ee-b66071374acf
Strain, Michael J.
6468eabf-1eee-4dc5-bbfe-7263b9c6a554
Korai, Umair A.
048de1dc-6c3c-418a-969c-ebb8e880dfed
Wang, Zifei
40668556-2d9a-40f5-82b4-e7f4a4090a5a
Lacava, Cosimo
a0a31a27-23ac-4a73-8bb4-2f02368fb8bd
Chen, Lawrence R.
07f19517-3b50-4455-8515-b164b3b5aa6a
Glesk, Ivan
5dee95d7-37db-43d8-96ee-b66071374acf
Strain, Michael J.
6468eabf-1eee-4dc5-bbfe-7263b9c6a554

Korai, Umair A., Wang, Zifei, Lacava, Cosimo, Chen, Lawrence R., Glesk, Ivan and Strain, Michael J. (2019) Technique for the measurement of picosecond optical pulses using a non-linear fiber loop mirror and an optical power meter. Optics Express, 27 (5), 6377-6388. (doi:10.1364/OE.27.006377).

Record type: Article

Abstract

A method for measuring picosecond pulse width by using only fiber components and optical power meters is presented. We have shown that the output power splitting ratio of a non-linear fiber loop mirror can be used to extract the full-width half maximum of the optical pulse, assuming a known slowly varying envelope shape and internal phase structure. Theoretical evaluation was carried out using both self-phase and cross-phase modulation approaches, with the latter showing a twofold sensitivity increase, as expected. In the experimental validation, pulses from an actively fiber mode-locked laser at the repetition rate of 10 GHz were incrementally temporally dispersed by using SMF–28 fiber, and then successfully measured over a pulse width range of 2–10 ps, with a resolution of 0.25 ps. This range can be easily extended from 0.25 to 40 ps by selecting different physical setup parameters.

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Accepted/In Press date: 3 February 2019
e-pub ahead of print date: 20 February 2019

Identifiers

Local EPrints ID: 429626
URI: https://eprints.soton.ac.uk/id/eprint/429626
ISSN: 1094-4087
PURE UUID: 56a118d1-c4bf-4e57-a336-e6de0065f5e9
ORCID for Cosimo Lacava: ORCID iD orcid.org/0000-0002-9950-8642

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Date deposited: 02 Apr 2019 16:30
Last modified: 18 Jul 2019 16:38

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Contributors

Author: Umair A. Korai
Author: Zifei Wang
Author: Cosimo Lacava ORCID iD
Author: Lawrence R. Chen
Author: Ivan Glesk
Author: Michael J. Strain

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