Passively mode-locked laser using an entirely centred erbium-doped fiber

This paper describes the setup and experimental results for an entirely centred erbium-doped fiber laser with passively mode-locked output. The gain medium of the ring laser cavity configuration comprises a 3 m length of two-core optical fiber, wherein an undoped outer core region of 9.38 μm diamete...

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Bibliographic Details
Main Authors: Ahmad, H, M Semangun, Julian, R Azzuhri, Saaidal, Zulkifli, M Z, Awang, N A, Harun, S W
Format: Article
Language:English
Published: IOP Publishing 2015
Subjects:
Online Access:http://eprints.uthm.edu.my/4097/1/AJ%202019%20%28228%29.pdf
http://eprints.uthm.edu.my/4097/
https://dx.doi.org/ 10.1088/1054-660X/25/4/045105
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Summary:This paper describes the setup and experimental results for an entirely centred erbium-doped fiber laser with passively mode-locked output. The gain medium of the ring laser cavity configuration comprises a 3 m length of two-core optical fiber, wherein an undoped outer core region of 9.38 μm diameter surrounds a 4.00 μm diameter central core region doped with erbium ions at 400 ppm concentration. The generated stable soliton mode-locking output has a central wavelength of 1533 nm and pulses that yield an average output power of 0.33 mW with a pulse energy of 31.8 pJ. The pulse duration is 0.7 ps and the measured output repetition rate of 10.37 MHz corresponds to a 96.4 ns pulse spacing in the pulse train.