gain medium
Possibility of using the beet dyes as a laser gain medium
... Nowadays the dye lasers play as an important tool and are used in many applications including spectroscopy, medicine and dermatology. This research was carried out to study the possibility of using the beet dyes as a ...
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Brillouin Fiber Laser with Significantly Reduced Gain Medium Length Operating in L-Band Region
... Photonics crystal fibers (PCFs) are a class of micro-structured fiber which possesses a solid core surrounded by a cladding region that is defined by a fine array of air holes that extend along the full fiber length. Due to ...
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Determination of threshold random gain medium in dye: Polymer films containing TiO2 nanoparticles
... hand, gain narrowing denotes a decrease of the width of the spectrum of the emitted light triggered by an increase in the pump ...(FWHM). Gain narrowing is observed in all laser sys- tems ...the gain ...
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Controllable Wavelength Channels for Multiwavelength Brillouin Bismuth/Erbium Based Fiber Laser
... linear gain medium for multiwavelength sources, there are however certain drawbacks of using the EDF as the gain ...the gain medium is that multiwavelength lasing at room temperature ...
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Design and characterization of a flexible diode pumped solid state laser neodymium orthovanadate
... Basic building blocks of a solid-state laser system are pumping source, active medium and optical cavity as shown in Figure 1.1. In this research, the pumping source is a laser diode. On the other hand, another ...
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On-chip High-finesse Fabry-Perot Microcavities for Optical Sensing and Quantum Information
... optical gain medium, so that the stimulated emission rate can greatly exceed the spontaneous emission ...the gain bandwidth of the laser medium) at which lasing will ...
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Controllable continuous-wave Nd:YVO4 self-Raman lasers using intracavity adaptive optics
... pupil along the x and y axes respectively (both diameters were 3 mm). Therefore, to favour the λ = 1109 nm output, the ROC of the DM surface along the x and y axes was measured at -4.29 m and -7.17 m respectively while ...
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Development of long pulse Nd. YAG laser system
... A suitable optical energy and pumping technique for atom excitation inside the gain medium must be applied to generate laser light especially for long pulse laser. Longer pump pulse is required and optical ...
28
One and two photon pumped organic semiconductor lasers
... Once the material has been evaluated, a laser using it as a gain medium is made. In this thesis all lasers presented are distributed feedback lasers, fabricated by spin-coating from solution onto a ...
185
1.6 W continuous-wave Raman laser using low-loss synthetic diamond
... A CW diamond Raman laser has been operated above the Watt level. The maximum output power was 1.6W and the conversion efficiency was 11% from the diode-laser pump power. In part, this was enabled by the excellent optical ...
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Study on the efficiency improvement of Diode Side Pumped Solid State Lasers
... Design and optimization of a DPSSL depends on three important issues, namely, the thermal analysis of the gain medium, coupling of diode power into the laser crystal and the resonator design incorporating ...
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An efficient and directional optical Tamm state assisted plasmonic nanolaser with broad tuning range
... thick gain medium has a one-dimensional photonic crystal on one side and a metal nanohole array on the other ...metal-gain medium interface that are amplified by the stimulated emission of the ...
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Measurement of ASE in an in-line EDFA
... creates gain, the gain medium also produces spontaneous emission, which gives rise to the amplified spontaneous emission (ASE) spectrum of the amplifier ...
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Weight changes before and after lurasidone treatment: a real-world analysis using electronic health records
... weight gain [12–15]. Proposed biological mechanisms leading to weight gain in patients treated with antipsychotics include changes in leptin [16] and adiponectin ...with medium and high risk for ...
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Waiting time distribution in public health care: empirics and theory
... on medium waiters, whereby patients receive treatment more gradually, but the long right tail of the distribution is ...of medium duration ...little gain from containing costs by delaying treatment, ...
27
Togo 2018: Domestic politics, foreign affairs, socio economic development
... and medium enterprises (SME) were aided by the African Guarantee Fund (AF West Africa) that declared in July 2018 to help the SME to gain access to bank credits to the tune of US $ 150 m for the next five ...
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Evaluation of Commercial Trout Feeds: Feed Consumption, Growth, Feed Conversion, Carcass Composition and Bio-economic Analysis
... FC and FCR values are presented in Table 3. Total feed supplies for feeds “A”, “B”, and “C” during trial was 57.8, 57.6 and 58.4 kg, respectively. FC was around 3.8-4.4% of bw (16.5-56.5 g) during the first period and ...
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Environmental Health Planning and Action: A Handbook for Indigenous Practitioners
... So EHWs do not only react to urgent problems, they need skills and resources to help them plan effective medium to long-term programs and gain the support of their people and community m[r] ...
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Mapping the dynamical regimes of a SESAM mode-locked VECSEL with long cavity using time series analysis
... Strong gain saturation at high pump powers has been a limitation to the potential for SESAM-VECSEL systems to attain robust, fundamental passive mode-locking (FML) in the few hundred MHz pulse repetition frequency ...
15
A Fully Differential Gain Boosted Folded Cascode OTA with 100dB Gain
... Fully differential (FD) operational amplifiers are core elements for the design of analog high performance systems. These elements are used in a wide variety of applications, such as audio amplifiers, analog filters, ...
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