Title :
Acousto-optic switch with a near rectangular passband for WDM systems
Author :
Smith, D.A. ; Rashid, H. ; Chakravarthy, R.S. ; Agboatwalla, A.M. ; Patil, A.A. ; Bao, Z. ; Imam, N. ; Smith, S.W. ; Baran, J.E. ; Jackel, J.L. ; Kallman, J.
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
3/14/1996 12:00:00 AM
Abstract :
The authors describe the most rectangular passband yet reported for an acousto-optic wavelength-routing switch. The device is a multicycle SAW directional-coupler-weighted AOTF, fabricated on XY lithium niobate, with a -3 dB width of 2.52 nm and a -20 dB width of 0.89 nm. For comparison, an ideal apodised AOTF with the same 3 dB width would have a -20 dB width of only 0.33 nm
Keywords :
acousto-optical switches; directional couplers; interdigital transducers; lithium compounds; photonic switching systems; surface acoustic wave couplers; wavelength division multiplexing; IDT; LiNbO3; WDM systems; XY lithium niobate; acousto-optic switch; acousto-optic wavelength-routing switch; multicycle SAW directional-coupler-weighted AOTF; rectangular passband;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19960355
