We generate mode-locked picosecond pulses near 1110 nm by spectrally slicing and reamplifying an octave-spanning supercontinuum source pumped at 1550 nm. The 1110 nm pulses are near transform-limited, with 1.7 ps duration over their 1.2 nm bandwidth, and exhibit high interpulse coherence. Both the supercontinuum source and the pulse synthesis system are implemented completely in fiber. The versatile source construction suggests that pulse synthesis from sliced supercontinuum may be a useful technique across the 1000 - 2000 nm wavelength range.
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http://dx.doi.org/10.1364/OE.17.020833 | DOI Listing |
Nanophotonics
April 2024
TUM School of Computation, Information and Technology, Technical University of Munich (TUM), D-85748 Garching, Germany.
In research and engineering, short laser pulses are fundamental for metrology and communication. The generation of pulses by passive mode-locking is especially desirable due to the compact setup dimensions, without the need for active modulation requiring dedicated external circuitry. However, well-established models do not cover regular self-pulsing in gain media that recover faster than the cavity round trip time.
View Article and Find Full Text PDFDirect regenerative amplifications of green pulses (522 nm) were investigated using a Pr-doped LiYF crystal pumped by GaN blue laser diodes. Green pulses with two different temporal duration regimes, i.e.
View Article and Find Full Text PDFA GaSb-based SEmiconductor Saturable Absorber Mirror (SESAM) enables continuous-wave picosecond mode-locked operation with excellent stability of a polarization-maintaining mid-infrared Er:ZBLAN fiber laser. The GaSb-based SESAM mode-locked fiber laser delivers an average output power of 190 mW at 2.76 µm at a repetition rate of 32.
View Article and Find Full Text PDFMaterials (Basel)
April 2024
Laboratory of Solid-State Quantum Electronics, National Institute for Laser, Plasma and Radiation Physics, 077125 Magurele, Ilfov, Romania.
Buried depressed-cladding waveguides were fabricated in 0.7-at.% Nd:CaLiNbGaO (Nd:CLNGG) and 7.
View Article and Find Full Text PDFThe advent of optical metrology applications has necessitated the development of compact, reliable, and cost-effective picosecond lasers operating around 900 nm, specifically catering to the requirements of precise ranging. In response to this demand, our work introduces an innovative solution-an all-fiber, all-polarization-maintaining (PM) figure-9 mode-locked laser operating at 915 nm. The proposed figure-9 Nd-doped fiber laser has a 69.
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