We review the athermalization techniques that have been proposed for AWGs and discuss the advantages and disadvantages provided by each approach. We then describe our recent progress on the design and fabrication of a silica-based athermal AWG with a 1.5%-▵ waveguide and report its compactness and excellent optical characteristics including its extremely low insertion loss.
Optical Kerr effect were applied to an all-optical switching device in the form of nonlinear waveguide directional couplers. The nonlinear directional coupler had a nonsymmetrical waveguide whose structure consists of a quartz thin gap between two Corning 7059 guided layers on the pyrex substrate with ion-milled grating and organic thin film as a top layer. The vacuum-deposited polydioacetylene film was used as an organic nonlinear material. Switching phenomena in this nonlinear directional coupler were confirmed for 10 ns pulse Nd:YAG laser and 150 fs pulse duration of mode-locked Ti:Sapphire laser.
Conference Committee Involvement (2)
Optical Metro Networks and Short-Haul Systems IV
24 January 2012 | San Francisco, California, United States
Optical Metro Networks and Short-Haul Systems III
25 January 2011 | San Francisco, California, United States