Pumping, loss, and the atom laser 107
Pumping an atom laser
... A dynamic equilibrium will be reached when the rate of atom loss from the condensate due to outcoupling balances the rate of atoms gained due to scattering with the thermal cloud. If the evaporative surface ...
261
The stability of a continuously pumped atom laser
... less loss from the excited modes than there is from the ground state, and the steady state value of b n will increase with increasing ...3-body loss, as the loss from each mode would decrease more ...
55
Ytterbium-sensitized Thulium-doped fiber laser in the near-IR with 980 nm pumping
... maximum laser output power with the Yb 3+ :Tm 3+ ratio is presented in ...that, laser output power of ...that laser output for the fibers with Yb 3+ :Tm 3+ ratio greater than 2 is initially high but ...
8
Coherence loss of partially mode-locked fibre laser
... the laser system fully looses its ...external pumping strength, until a bifurca- tion into random SOPs is ...the loss of coherence, could find applications to supercontinuum and Kerr comb ...the ...
12
Design of Seven core Photonic Crystal Fiber with Flat In phase Mode for Yb: Fiber Laser Pumping
... However, it is particularly challenging to further improve the SC power that limited by the low coupling efficiency from the large mode area Yb:fiber into the highly nonlinear PCF. The mismatch between their core diame- ...
5
The atom laser
... "atom laser" as we defined it in Chapter ...an atom laser provides a similar role to rate equation models for optical ...an atom laser in a similar sense to the first ...
157
optical Pumping With Laser-Induced Fluorescence
... The phoiocurreni generated by the probe laser’s photodiode was detected across 200 kn, and amplified by 200 before being displayed on the oscilloscope: (a) pump laser blocked, 20 mV/cm;[r] ...
11
Bose-Einstein condensation and the atom laser
... A MOT collects a large number of atoms at intermediate temperatures typically just below the Doppler limit. Upon removing the magnetic field used to create the trapping[r] ...
143
A simple laser system for atom interferometry
... the laser close to the desired operating points, so that the PLL does not have to compensate for ...the laser remains phase locked all the time, even during the transient phases, and gives better stability ...
13
Investigation of nitrogen lasers for dye laser pumping
... n laser MOPA systems have utilized Blumlein c ircuits for both ...III laser was converted to o p e ration w i t h a capacitor transfer circuit and its C^/Cg ratio was chosen to be the same as that of Mk II ...
202
Broadband Pumping Effects on the Diode Pumped Alkali Laser
... Airborne Laser Testbed engineers and three of their government and industry ...driven laser which utilizes vast quantities of hazardous chemicals including chlorine, iodine, hydrogen peroxide and potassium ...
96
CW THz Wave Generation System with Diode Laser Pumping
... diode laser by full width at quarter maximum ...DFB laser was ...DFB laser temperature at a fixed phase- matching ...DFB laser was tuned from ...DFB laser diode from 10 - ...
20
UV laser source for atom optics experiments with metastable helium
... intense laser light with helium metastables. The laser passes through a polarising beamsplitter (PBS) cube, and a A/4 plate is used to drive a transitions in the first pass through discharge cell, before ...
191
Design and fabrication of diffractive atom chips for laser cooling and trapping
... few-milliwatt laser beam of 780nm wavelength was spa- tially filtered using a single-mode fibre and then collimated to form a beam of approximately 1mm full-width-half- ...
6
Study on Dynamics of N Level System of Atom by Laser Fields
... an atom has in general infinitely many energy levels, while in a qubit method only two energy levels are used, see for example [8] as an introduction of two level ...
20
Tunable Multi Wavelength by Pulse Signal Modulation in Laser Pumping of EDFA
... by laser pumping at wavelength 980 ...modulated laser pumping, is observed ranging from 10 to 100 Hz and the wavelength spacing can be tuned from ...
5
Optimization of an Injection Locked Laser System for Cold Neutral Atom Traps
... changing laser parameters, since changing laser settings results in changes of laser ...seed laser wavelength needs to be measured, an additional beam splitter is placed in the path of the ...
24
Evaluation of 976 nm Multimode Single Emitter Laser Diodes for Efficient Pumping of 100 W+ Yb-doped Fiber Laser
... multimode laser diodes used for development of efficient pumping assembly is ...coupled laser diodes emitting around 976 nm are best suited for pumping Yb-doped fiber lasers because of ...
6
Tunable narrow linewidth AlGaInP semiconductor disk laser for Sr atom cooling applications
... The frequency fluctuations are then compensated via a piezoelectric transducer (PI P-010.00H) upon which the folding mirror (M1 in Fig 1) is fixed with paraffin wax. In order to achieve a large correction bandwidth, we ...
5
All optical spinor Bose Einstein condensation and the spinor dynamics driven atom laser
... 2 laser powers available for use, most likely from aging of the laser itself, and lower initial temperatures were observed as a result—in addition, observations showed that initial temperature was ...
166