Single- and Multi-Longitudinal Mode Lasers
Single Mode Fiber Lasers
... Applications Single mode fiber lasers have gained rapid acceptance on a large variety of welding applications including batteries, medical assemblies, fuel cells, wire welding, flexures for hard disc ...
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Micromachining with single mode fibre lasers for medical device production
... 58 2. Fibre Laser for Microcutting The flash-lamp pumped Nd:YAG is an established tool for microcutting applications. Certain resonator designs achieve the beam quality and pulse power levels required for microcutting ...
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Single mode lasers based on slots suitable for photonic integration
... free single mode laser scheme based on slots suitable for photonic integration has been ...fabricated lasers exhibit a stable single mode operation with a threshold of 32mA and side ...
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Coupled-cavity terahertz quantum cascade lasers for single mode operation
... 17. The effective index in the waveguide sections was com- puted with COMSOL-Multiphysics, using the Drude conduc- tivity in the doped layers and the GaAs bulk permittivity found in Ref. 18 at 2.5 THz. 19 For the real ...
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Monolithic single mode interband cascade lasers with wide wavelength tunability
... widely-tunable lasers is based on binary superimposed gratings and a two-segment device approach for wavelength ...a single wavelength according to the Bragg condition due to the constant period of the ...
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Single mode interband cascade lasers emitting below 2 8 μm
... wave mode at room temperature, with threshold currents of 57 mA and demonstrated side mode suppression ratios of larger than 25 ...material, single-mode DFB emission was observed within a ...
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Investigation of Single-Section InAs/InP Quantum Dot Mode-Locked Lasers
... Two factors contribute to χ (3) : the material itself and the confined energy states (intraband and interband) as illustrated in 䭉 䭉䈟!ᵚࡠᕅ⭘ⓀDŽ. It is believed that the first nonlinearity is counted in the current TDTW ...
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Time-Dependent Measurement of the Mode-Competition Phenomena Among Longitudinal Modes in Long-Wavelength Lasers
... the mode-competition phenomena induce quasi-periodic hopping among several longitudinal modes, which reveal multimode-like output spectra as the time-averaged spectra in long-wavelength ...the ...
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Single-mode surface-emitting concentric-circular-grating terahertz quantum cascade lasers
... demonstrate single-mode surface-emitting terahertz frequency quantum cascade lasers utilising non-uniform second-order distributed feedback ...for single-mode operation and surface ...
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Combining Different in-Plane Photonic Wire Lasers and Coupling the Resulting Field into a Single-Mode Waveguide
... wire lasers are compact light sources that are fabricated in high-index contrast waveguides (with typical widths of a few hundreds of ...wire lasers can only produce low output power that may not be ...
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Using photorefractive oscillators to obtain single mode radiation from multi-mode fields
... point to the crystal. These experimental parameters ensured that the cat mirror was prohibited from operating over the entire range of input beam entry positions. Figure 4.5 shows the observed angular distribution of the ...
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Experiment 5. Lasers and laser mode structure
... 6. Analyzing the data and writing the report The objective of this experiment is to observe different types of laser modes and quantify your observations. Set the laser mirrors so you are observing multiple transverse ...
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Characterization of single-crystal synthetic diamond for multi-watt continuous-wave Raman lasers
... Solid lasers I. I NTRODUCTION olid-state lasers based on doped dielectric crystals are capable of unrivalled performance: from ultrashort pulses to kilowatt output powers; from multi-joule pulses to ...
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Low divergence single-mode surface-emitting concentric-circular-grating terahertz quantum cascade lasers
... 4. Conclusion We have presented the design, fabrication and experimental measurements of surface emitting THz QCLs with second-order CCGs. Robust single-mode operation has been achieved with a SMSR as high ...
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Quantum optics of multi-level lasers
... pumped lasers can produce amplitude squeezed lig h t We have emphasized the relationship between our models and real ...pump mode and by spatial variations in the pump and lasing ...fibre lasers as ...
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A Beam Search Heuristic for Multi-Mode Single Resource Constrained Project Scheduling
... schedule multi-mode resource constrained projects in a single-pass, myopic ...and single pass heuristics is to prune the search tree very harshly, allowing only a very limited number of nodes ...
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Passively mode-locked semiconductor lasers for all-optical applications
... of mode locking in semiconductor lasers was presented. Mode locking is achieved when the electrical fields corresponding to each of the longitudinal modes present in the laser cavity are made ...
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A study of active mode-locking of external cavity semiconductor lasers
... active mode-locking is to m odulate an exte rn a l ca vity la se r a t th e ro u n d -trip frequency o f th e com posite c a v ity ...aAsP lasers was reported in ...a single clu ste r o f external ca ...
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Single cell induced optical confinement in biological lasers
... the single cell laser emission to the emission from a cavity filled with a fluorescent dye and to the emission from a cavity with a fluorescent polystyrene microsphere, we concluded that the photonic confinement ...
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Pulse Shaping Mechanisms For High Performance Mode-Locked Fiber Lasers
... In conclusion, amplifier similaritons are generated in a fiber laser with a dispersion map. The pulse evolution is stabilized by a narrow-band spectral filter, which leads to a strong nonlinear attraction in the gain ...
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