Title :
Design of double-passed arrayed-waveguide gratings for the generation of flat-topped femtosecond pulse trains
Author :
Muralidharan, Bhaskaran ; Balakrishnan, Venkataramanan ; Weiner, Andrew M.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
This paper presents a theoretical investigation of femtosecond flat-topped pulse-sequence generation using an arrayed-waveguide grating (AWG) in a double-passed configuration. We present low-insertion-loss designs using phase-only filters designed using numerical optimization. The designs are also analyzed for robustness to fabrication errors.
Keywords :
arrayed waveguide gratings; optical design techniques; optical filters; optical pulse generation; double-passed arrayed-waveguide gratings; flat-topped femtosecond pulse generation; low-insertion-loss design; phase-only filters; Arrayed waveguide gratings; Insertion loss; Optical filters; Optical pulse generation; Optical pulses; Optical waveguides; Propagation delay; Pulse generation; Ultrafast optics; Wavelength division multiplexing; Arrayed-waveguide grating (AWG); optical pulse generation; phase-only filter; wavelength-division multiplexing (WDM);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2005.860154
