Passive mode-locking at S-band by single-mode thulium-doped fluoride fiber using a thin film PtAg/N-G saturable absorber

Harith Bin Ahmad; Mojgan Tajdidzadeh; Majid Rezayi; Iraj Sadegh Amiri Ahmed

doi:10.1117/1.JNP.11.026008

22 May 2017 Passive mode-locking at S-band by single-mode thulium-doped fluoride fiber using a thin film PtAg/N-G saturable absorber

Harith Bin Ahmad, Mojgan Tajdidzadeh, Majid Rezayi, Iraj Sadegh Amiri Ahmed

Author Affiliations +

Funded by: Ministry of Higher Education, Institut Pengurusan dan Pemantauan Penyelidika, Universiti Malaya (Institute of Research Management and Monitoring, University of Malaya)

Journal of Nanophotonics, Vol. 11, Issue 2, 026008 (May 2017). https://doi.org/10.1117/1.JNP.11.026008

Abstract

We report, for the first time to our knowledge, the usage of platinum silver bimetallic alloy forms on the synthesized N-Gns (PtAg/N-G) as a saturable absorber (SA) for the mode-locking of a thulium-doped fluoride fiber laser. The experimental results have demonstrated that PtAg/N-G exhibits saturable absorption in the 1.5-μm wavelength range and supports ultrashort pulse generation. Mode-locking occurred when the pump power rose to 340 mW, and the output spectrum had a peak at 1506 nm with the 3-dB bandwidth of ∼0.76 nm. The mode-locked pulse train against a cavity roundtrip time of 146 ns that corresponds to a pulse repetition rate around 6.85 MHz. The autocorrelation trace 7.43 ps with a full width at half maximum pulse width of 4.8 ps, and experimental data were closely fit with a sech2 pulse shape and it indicates the generation of soliton pulse. The output power of this fiber laser is 3.24 mW; hence, the pulse energy is 0.31 nJ and peak power is about 56.9 mW as well. We demonstrate graphene-polymer nanocomposites could be an appropriate SA for high-power fiber laser mode-locking.

Citation Download Citation

Harith Bin Ahmad, Mojgan Tajdidzadeh, Majid Rezayi, and Iraj Sadegh Amiri Ahmed "Passive mode-locking at S-band by single-mode thulium-doped fluoride fiber using a thin film PtAg/N-G saturable absorber," Journal of Nanophotonics 11(2), 026008 (22 May 2017). https://doi.org/10.1117/1.JNP.11.026008

Received: 22 March 2017; Accepted: 3 May 2017; Published: 22 May 2017

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE