Title :
Loss engineered arrayed waveguide gratings for generating multiple wavelength shifted 500 GHz repetition rate flat-topped pulse trains
Author :
Leaird, D.E. ; Weiner, A.M. ; Sugita, A. ; Kamei, S. ; Yamada, H. ; Ishii, M. ; Okamoto, K.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Flat-topped intensity profile, high repetition rate pulse bursts have been demonstrated from a specially designed AWG and a single short pulse source laser. The key requirement is that the free spectral range of the device must be tailored so that multiple filter passbands fit within the input laser bandwidth. The unique properties of this device allow generation of identical, wavelength shifted, very high rate pulse trains for hybrid TDM/WDM communications and photonic signal processing. When applied to a high-repetition rate modelocked source (>10 GHz), these devices could lead to continuous very-high repetition rate output trains (>500 GHz). Furthermore, the simultaneous generation of multiple, slightly wavelength shifted pulse trains can be exploited to obtain new functionalities
Keywords :
diffraction gratings; multiplexing equipment; optical communication equipment; optical losses; optical planar waveguides; optical pulse generation; time division multiplexing; wavelength division multiplexing; 1560 nm; flat-topped intensity profile pulse bursts; free spectral range; high repetition rate pulse bursts; hybrid TDM/WDM communications; intensity cross correlation; loss engineered arrayed waveguide gratings; multiple filter passbands; photonic signal processing; simultaneous generation; single short pulse source laser; slightly wavelength shifted pulse trains; Arrayed waveguide gratings; Band pass filters; Bandwidth; Laser modes; Optical design; Optical pulse generation; Optical pulses; Passband; Signal generators; Waveguide lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.969079
