Zobrazeno 1 - 10
of 85
pro vyhledávání: '"Bergmann A"'
Publikováno v:
In Optics Communications 2002 204(1):413-423
Publikováno v:
Optics Communications. 282:2212-2216
Frequency shifted feedback (FSF) lasers have been demonstrated to have interesting and useful features when used for optical ranging. The use of a phase-modulated seed to the FSF laser dramatically improves the signal-to-noise ratio, enabling distanc
Publikováno v:
Optics Communications. 282:300-309
We present a detailed theoretical analysis, using correlation functions, of the coherence properties of the output from a frequency shifted feedback (FSF) laser seeded simultaneously by an external seed laser and by spontaneous emission (SE). We show
Publikováno v:
Optics Communications. 281:1679-1685
A recent paper [L.P. Yatsenko et al., Opt. Commun. 242 (2004) 581] provided a first-principles prediction for the optical ranging signals obtained when using a frequency-shifted feedback (FSF) laser system, seeded by a phase-modulated laser. Such a s
Publikováno v:
Optics Communications. 266:266-273
This paper demonstrates that a frequency-shifted feedback laser, when seeded by a phase-modulated narrow-band radiation field, is a powerful tool for distance measurements to accuracy better than 10 μm and resolution better than 100 μm, for distanc
Autor:
Klaas Bergmann, G. Bonnet, Leonid P. Yatsenko, V.V. Ogurtsov, Bruce W. Shore, V.M. Khodakovskyy
Publikováno v:
Optics Communications. 266:627-637
We present experimental characteristics of an Yb 3+ -doped fiber ring laser operating with frequency-shifted feedback (FSF) through an acousto-optic modulator (AOM) and seeded by both a stationary continuous-wave (CW) laser and spontaneous emission.
Publikováno v:
Optics Communications. 264:248-255
We demonstrate a controlled phase change of p in a degenerate superposition by altering a laser frequency by only 10 MHz. The method relies on the preparation of an adiabatic state involving the M = ±2 and M = 0 states of the 3 P2 (J = 2) level of m
Publikováno v:
Optics Communications. 236:183-202
We present a new approach to the description of the output from a frequency-shifted feedback (FSF) laser seeded by a phase-fluctuating but stationary continuous-wave (CW) laser. We illustrate the new analysis by showing how short frequency-chirped pu
Publikováno v:
Optics Communications. 220:353-359
We compare lineshapes obtained in laser-induced fluorescence and resonantly enhanced multi-photon ionisation, resultingfrom coherent pulsed excitation of a two-photon transition in xenon atoms. We find that excitation profiles probed by ionisation sh
Publikováno v:
Optics Communications. 204:413-423
We show that the technique of Stark-chirped rapid adiabatic passage (SCRAP), hitherto used for complete population transfer between two quantum states, offers a simple and robust method for creating coherent superpositions of states. SCRAP uses two l