High-energy ultrafast fiber laser at 2-μm based on Cb Ni-metal organic framework

Ahmad, Harith and Zaini, Muhammad Khairol Annuar and Mahmoodin, Zulkifli and Mutlu, Saliha and Filiz, Volkan and Yilmaz, Sevil Savaskan and Arsu, Nergis and Mohamad Lutfi, Mohamad Akmal and Thambiratnam, Kavintheran and Ortaç, Bülend (2026) High-energy ultrafast fiber laser at 2-μm based on Cb Ni-metal organic framework. IEEE Journal of Quantum Electronics, 62 (2). pp. 1-9. ISSN 0018-9197 E-ISSN 1558-1713

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Abstract

A new carborane-containing metal-organic framework (Cb Ni-MOF) was synthesized using a high-power laser-assisted method. The material was prepared from Nickel(II) chloride hexahydrate (NiCI2 ⋅ 6 H2O) and m-carborane-1,7-dicarboxylic acid (Cb). FTIR spectroscopy-based structural analysis confirmed successful coordination between the carborane carboxylate groups and Ni(II) ions. SEM-based morphological description revealed 200 nm to 1 µm-sized polyhedral particles, indicating a crystalline and porous nature. TEM images further revealed nanoscale crystallinity with particle diameters around 50 nm, together with single-/polycrystalline structures with identical features. These findings demonstrate that the laser-assisted process is efficient for preparing nano-ordered, highly crystalline Cb-based MOFs. In this work, the generation of a high-performance ultrafast fiber laser system at the 2-µm wavelength region was demonstrated. The system utilized a passively mode-locked oscillator incorporating a Cb Ni-MOF deposited on an arc-shaped fiber, demonstrating exceptional nonlinear optical properties with 14.1 modulation depth and 11.2 MW/cm2 saturation intensity. The laser oscillator generated ultrashort pulses with a duration of 1.2 ps at a center wavelength of 1942.9 nm. Using a chirped pulse amplification (CPA) technique with pre-amplification and main amplification stages, the high-power fiber laser achieves remarkable performance characteristics: 8.4 W average output power, 264 fs pulse duration, 433 nJ pulse energy, and 1.64 MW peak power at 19.4 MHz repetition rate. This high-power ultrafast fiber laser system shows significant potential for applications in invasive medical procedures, advanced material processing, and other fields requiring precise and high-intensity laser-matter interactions. © 1965-2012 IEEE.

Item Type:	Article (Journal)
Additional Information:	Cited by: 0
Uncontrolled Keywords:	Carboxylation; Chlorine compounds; Chromium compounds; Crystalline materials; Crystallinity; Fiber lasers; Fibers; High power lasers; Iodine compounds; Laser materials processing; Metal-Organic Frameworks; Nickel compounds; Nonlinear optics; Optical properties; Organic lasers; Oscillators (electronic); Ultrashort pulses; Carboranes; Energy; High-energy ultrafast fiber laser; High-power laser-assisted synthesis (LIRS); High-power lasers; Laser systems; Laser-assisted; Metalorganic frameworks (MOFs); Thulium-doped fibers; Ultrafast fiber lasers; Pulse repetition rate
Subjects:	Q Science > QC Physics
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science Kulliyyah of Science > Department of Physics
Depositing User:	Ts. Dr. Kavintheran Thambiratnam
Date Deposited:	09 Oct 2026 15:44
Last Update:	09 Oct 2026 15:44
Queue Number:	2026-10-Q5499
URI:	http://irep.iium.edu.my/id/eprint/131790
Indexed In:	SCOPUS

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