Title :
Diffraction-compensated free-space WDM add-drop module with thin-film filters
Author :
Honda, Tokuyuki ; Liu, Alice C. ; Valera, Jesus ; Colvin, Jim ; Sawyer, Kevin ; McLeod, Robert R.
Author_Institution :
JDS Uniphase, San Jose, CA, USA
Abstract :
A novel wavelength-division-multiplexing add-drop module is proposed using free-space cascaded thin-film filters. The athermal design of the filters creates a natural curvature that is shown to compensate for diffraction and optical misalignment. We demonstrate an insertion loss of 1.1 dB for four cascaded filters.
Keywords :
aberrations; modules; optical communication equipment; optical design techniques; optical losses; optical waveguide filters; wavelength division multiplexing; 1.1 dB; athermal design; cascaded filters; diffraction compensation; diffraction-compensated free-space WDM add-drop module with thin-film filters; free-space cascaded thin-film filters; insertion loss; natural curvature; optical misalignment; wavelength-division-multiplexing add-drop module; Optical beams; Optical diffraction; Optical fiber devices; Optical fiber filters; Optical fiber polarization; Optical filters; Optical sensors; Packaging; Transistors; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.805792
