We demonstrate the operation of an all-optical buffer based on temporal cavity solitons stored in a nonlinear passive fiber ring resonator. Unwanted acoustic interactions between neighboring solitons are suppressed by modulating the phase of the external laser driving the cavity. A new locking scheme is presented that allows the buffer to operate with an arbitrarily large number of cavity solitons in the loop. Experimentally, we are able to demonstrate the storage of 4536 bits of data, written all optically into the fiber ring at 10 Gb/s for 1 min.
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| http://dx.doi.org/10.1364/OL.41.004526 | DOI Listing |
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Theory and application of cavity solitons in photonic devices.
Philos Trans A Math Phys Eng Sci
December 2024
SUPA and Department of Physics, University of Strathclyde, 107 Rottenrow, Glasgow, Scotland G4 0NG, UK.
Driven optical cavities containing a nonlinear medium support stable dissipative solitons, cavity solitons, in the form of bright or dark spots of light on a uniformly-lit background. Broadening effects due to diffraction or group velocity dispersion are balanced by the nonlinear interaction with the medium while cavity losses balance the input energy. The history, properties, physical interpretation and wide application of cavity solitons are reviewed.
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- Researchers have identified a new type of bright pulse in Kerr-Gires-Tournois interferometers that exists in a normal dispersion regime.
- Unlike traditional domain wall locking scenarios, these pulses exhibit unique shapes and increased peak intensities beyond typical limits.
- They remain stable across a wide range of injection fields, indicating promising applications for generating optical frequency combs (OFC).
We demonstrated a dispersion-managed 2 µm ultrafast laser based on Tm:ZBLAN fiber. By controlling intracavity net dispersion using passive fibers, we observed soliton, stretched-pulse, and dissipative-soliton mode-locked operations. In particular, the broadest output spectrum with a bandwidth at 30 dB below the peak of 320 nm and a pulse duration of 61 fs were obtained at a net dispersion of -0.
View Article and Find Full Text PDFLong-range interactions between dark vectorial temporal cavity solitons are induced by the formation of patterns via spontaneous symmetry breaking of orthogonally polarized fields in ring resonators. Turing patterns of alternating polarizations form between adjacent solitons, pushing them apart so that a random distribution of solitons along the cavity length spontaneously reaches equal equilibrium distances, the soliton crystal, without any mode crossing or external modulation. Enhancement of the frequency comb is achieved through the spontaneous formation of regularly spaced soliton crystals, 'self-crystallization', with greater power and spacing of the spectral lines for increasing soliton numbers.
View Article and Find Full Text PDFSuccessful generation of ultrashort pulses in the spectral region of 920 nm using Nd-doped fibers requires effectively suppressing the dominant 1064 nm four-level transition. Utilizing a hybrid design incorporating a W-shaped double-clad Nd-doped fiber and a single-clad Nd-doped fiber together with filtering out parasitic 1.06 µm beam, we developed an oscillator capable of delivering ultrashort pulses at the central wavelength of 929 nm.
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