Title :
65 dB dynamic range 2.8 microseconds switching speed variable fiber-optic attenuator
Author :
Mughal, M.J. ; Riza, N.A.
Author_Institution :
Nuonics Inc., Orlando, FL, USA
Abstract :
For the first time a >65 dB dynamic range fast 2.8 microseconds fiber-optic variable optical attenuator (VOA) is proposed and demonstrated by using a single bulk-acousto-optic device. The unique double pass optical design eliminates intrinsic acousto-optic interaction-based Doppler shift while a center-path positioned halfwave plate (HWP) greatly reduces polarization dependent loss (PDL) to 0.03 dB. The current VOA insertion loss is <2.5 dB with a demonstrated 1520-1600 nm operation.
Keywords :
acousto-optical modulation; optical communication equipment; optical fibre communication; optical fibre losses; optical fibre polarisation; telecommunication switching; waveguide attenuators; 0.03 dB; 1520 to 1600 nm; 2.8 mus; VOA; bulk-acousto-optic device; center-path positioned halfwave plate; double pass optical design; dynamic range; fiber-optic variable optical attenuator; insertion loss; polarisation dependent loss; Dynamic range; Frequency; Optical attenuators; Optical beams; Optical collimators; Optical losses; Optical scattering; Optical sensors; Optical transmitters; Stimulated emission;
Conference_Titel :
Optical Communication, 2001. ECOC '01. 27th European Conference on
Print_ISBN :
0-7803-6705-7
DOI :
10.1109/ECOC.2001.989047
