Title :
Dispersion-enhanced volume hologram for dense wavelength-division demultiplexer
Author :
Qiao, Jie ; Zhao, Feng ; Liu, Jian ; Chen, Ray T.
Author_Institution :
Microelectron. Res. Center, Texas Univ., Austin, TX, USA
Abstract :
A fully packaged dense wavelength-division demultiplexer (DWDDM) by using dispersion-enhanced volume holographic grating and silicon V-grooved fiber array is demonstrated. The device demultiplexes eight optical channels within C band with 2 nm wavelength spacing. The system insertion losses are -5.68, -5.6, -5.40, -5.3, -5.68, -5.59, -5.58, and -5.49 dB, respectively. Typical cross-talks among these eight channels are less than -35 dB. The trade-off between getting smaller physical packaging size and linear dispersion ability at different wavelength is addressed. The device is designed for optical communications for Metropolitan area networks where both free space DWDM and multimode fiber band networks are jointly employed.
Keywords :
holographic gratings; metropolitan area networks; optical arrays; optical fibre dispersion; optical fibre losses; optical fibre networks; packaging; telecommunication channels; wavelength division multiplexing; 5.49 to 5.68 dB; Metropolitan area networks; cross-talk; dense wavelength-division demultiplexer; dispersion-enhanced volume hologram; dispersion-enhanced volume holographic grating; free space DWDM; fully packaged dense wavelength-division demultiplexer; linear dispersion; multimode fiber band networks; optical channel demultiplexing; optical communications; physical packaging size; silicon V-grooved fiber array; system insertion losses; wavelength spacing; Fiber gratings; Holographic optical components; Holography; Optical crosstalk; Optical devices; Optical fiber communication; Optical fiber devices; Optical losses; Packaging; Silicon;
Journal_Title :
Photonics Technology Letters, IEEE
