Directly Modulated Semiconductor-Laser-Fed Photonic Delay Line with Ferroelectric Liquid Crystals
Applied Optics, Vol. 37, Issue 8, pp. 1407-1416 (1998)
http://dx.doi.org/10.1364/AO.37.001407
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Abstract
A 3-bit binary photonic delay line is demonstrated at 1 GHz by use of a directly modulated semiconductor laser and remote interconnection fiber optics. Three types of free-space delay-bit geometries are tested for 5.69-ns, 1.67-ns, and 8.8-ps designed delay bits. This is the first time, to our knowledge, that a photonic delay line is demonstrated with ferroelectric liquid-crystal optical on–off devices for optical path switching and active polarization noise filtering. Three-dimensional imaging optics and antireflection-coated optics (for all but five components) are used successfully to minimize photonic delay-line insertion losses and interchannel cross talk. The 3-bit system is fully characterized for measured and designed performance.
© 1998 Optical Society of America
[Optical Society of America ]
OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(140.3300) Lasers and laser optics : Laser beam shaping
(160.2260) Materials : Ferroelectrics
(160.3710) Materials : Liquid crystals
(260.5430) Physical optics : Polarization
(280.5110) Remote sensing and sensors : Phased-array radar
(350.4010) Other areas of optics : Microwaves
Citation
Nicholas Madamopoulos and Nabeel A. Riza, "Directly Modulated Semiconductor-Laser-Fed Photonic Delay Line with Ferroelectric Liquid Crystals," Appl. Opt. 37, 1407-1416 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-8-1407
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