Title :
Programmable pulse shaping by using Liquid Crystal-Spatial Light Modulator (LC-SLM) for optical wireless communications
Author :
You, S. ; Kavehrad, M.
Author_Institution :
Dept. of Electr. Eng., Pennsylvania State Univ., University Park, PA
Abstract :
We demonstrated programmable optical pulse shaping of femto-second laser pulse by using liquid crystal-spatial light modulator (LC-SLM). With a combination of amplitude and phase mask in LC-SLM, arbitrarily shaped ultra-short pulse waveforms could be synthesized by manipulating the frequency components which are spatially dispersed in the high-resolution zero-dispersion pulse shaping system. The specified shaped pulses, square root raised cosine (SRRC) and Meyer wavelet, are generated through the programmable pulse shaping system, which can potentially improve the performance of optical wireless communication system, for transmission through clouds.
Keywords :
liquid crystal devices; optical communication; optical links; optical pulse shaping; spatial light modulators; wavelet transforms; Meyer wavelet; Square Root Raised Cosine; amplitude mask; femto-second laser pulse; high-resolution zero-dispersion pulse shaping system; liquid crystal-spatial light modulator; optical wireless communications; phase mask; programmable pulse shaping; Clouds; Frequency synthesizers; Modulation coding; Optical modulation; Optical pulse generation; Optical pulse shaping; Pulse modulation; Pulse shaping methods; Ultrafast optics; Wireless communication; Meyer wavelet; Optical pulse shaping; liquid crystal-spatial light modulator; optical wireless communication through clouds; square root raised cosine;
Conference_Titel :
Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4244-1642-4
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2008.4564545
