Title :
Optical distributed-feedback channel-dropping filters: design and fabrication
Author :
Damask, J.N. ; Wong, V.V. ; Ferrera, J. ; Smith, Henry I. ; Haus, H.A.
Author_Institution :
Dept. of Electr. Eng., MIT, Cambridge, MA, USA
Abstract :
The integrated resonant channel-dropping filter is used in wavelength-division multiplexing (WDM) systems. The integrated filters are constructed by electron beam etching quarter-wave shifted distributed feedback (QWS-DFB) gratings on top of integrated rib waveguides. A QWS-DFB structure allows for a single optical resonance in the underlying waveguide. Such QWS-DFB structures can interact with optical signals in such as way as to selectively transmit, reflect, or detect the signals that are resonant with the structure. These frequency-selective operations are well suited for a variety of communication applications
Keywords :
feedback; integrated optics; optical design techniques; optical fibre communication; optical fibre fabrication; optical fibre filters; optical waveguide filters; rib waveguides; tuning; wavelength division multiplexing; WDM; communication applications; electron beam etching; frequency-selective operations; integrated resonant channel-dropping filter; integrated rib waveguides; optical distributed-feedback channel-dropping filters; quarter-wave shifted distributed feedback gratings; single optical resonance; waveguide filter design; waveguide filter fabrication; wavelength-division multiplexing; Distributed feedback devices; Electron beams; Electron optics; Etching; Optical design; Optical feedback; Optical filters; Optical waveguides; Resonance; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1993. LEOS '93 Conference Proceedings. IEEE
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-1263-5
DOI :
10.1109/LEOS.1993.379206
