Spectral Fraunhofer regime: time-to-frequency conversion by the action of a single time lens on an optical pulse
Applied Optics, Vol. 43, Issue 2, pp. 483-490 (2004)
http://dx.doi.org/10.1364/AO.43.000483
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Abstract
We analyze a new regime in the interaction between an optical pulse and a time lens (spectral Fraunhofer regime), where the input pulse amplitude is mapped from the time domain into the frequency domain (time-to-frequency conversion). Here we derive in detail the conditions for achieving time-to-frequency conversion with a single time lens (i.e., for entering the spectral Fraunhofer regime) as well as the expressions governing this operation. Our theoretical findings are demonstrated both numerically and experimentally. A comparative study between the proposed single-time-lens configuration and the conventional dispersion + time-lens configuration for time-to-frequency conversion is also conducted. Time-to-frequency conversion with a single time lens can be used for applications similar to those previously proposed for the conventional time-to-frequency converters, e.g., high-resolution measurement of fast optical temporal waveforms. Moreover, our results also indicate that the spectral Fraunhofer regime provides additional capabilities for controlling and processing optical pulses.
© 2004 Optical Society of America
OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(070.2590) Fourier optics and signal processing : ABCD transforms
(200.3050) Optics in computing : Information processing
(250.5530) Optoelectronics : Pulse propagation and temporal solitons
(320.5540) Ultrafast optics : Pulse shaping
Citation
José Azaña, Naum K. Berger, Boris Levit, and Baruch Fischer, "Spectral Fraunhofer regime: time-to-frequency conversion by the action of a single time lens on an optical pulse," Appl. Opt. 43, 483-490 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-2-483
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