Fully reconfigurable photonic microwave transversal filter based on digital micromirror device and continuous-wave, incoherent supercontinuum source
Applied Optics, Vol. 46, Issue 22, pp. 5158-5167 (2007)
http://dx.doi.org/10.1364/AO.46.005158
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Abstract
The combined use of a programmable, digital micromirror device (DMD) and an ultrabroadband, cw, incoherent supercontinuum (SC) source is experimentally demonstrated to fully explore various aspects on the reconfiguration of a microwave filter transfer function by creating a range of multiwavelength optical filter shapes. Owing to both the unique characteristic of the DMD that an arbitrary optical filter shape can be readily produced and the ultrabroad bandwidth of the cw SC source that is 3 times larger than that of Er-amplified spontaneous emission, a multiwavelength optical beam pattern can be generated with a large number of wavelength filter taps apodized by an arbitrary amplitude window. Therefore various types of high-quality microwave filter can be readily achieved through the spectrum slicing-based photonic microwave transversal filter scheme. The experimental demonstration is performed in three aspects: the tuning of a filter resonance bandwidth at a fixed resonance frequency, filter resonance frequency tuning at a fixed resonance frequency, and flexible microwave filter shape reconstruction.
© 2007 Optical Society of America
OCIS Codes
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(120.2440) Instrumentation, measurement, and metrology : Filters
(230.6120) Optical devices : Spatial light modulators
(350.4010) Other areas of optics : Microwaves
ToC Category:
Fourier Optics and Signal Processing
History
Original Manuscript: October 13, 2006
Revised Manuscript: March 5, 2007
Manuscript Accepted: March 22, 2007
Published: July 9, 2007
Citation
Ju Han Lee, You Min Chang, Young-Geun Han, Sang Bae Lee, and Hae Yang Chung, "Fully reconfigurable photonic microwave transversal filter based on digital micromirror device and continuous-wave, incoherent supercontinuum source," Appl. Opt. 46, 5158-5167 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-22-5158
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