Title :
Dispersion characteristics of holographic multiple-channel demultiplexers
Author :
Han, Seunghoon ; Kim, Taesu ; Chung, Seungwhan ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
Chromatic dispersion characteristics over multiple channels in holographic grating (HG) demultiplexers are modeled and analyzed, theoretically and experimentally. The dispersion arises from a combination of out-coupling lens aberration and the HG phase structure. A theoretical model of the channel spectrum of a demultiplexer was assembled, based on the first-order Born approximation of the volume diffraction and verified by experimental and numerical data. These results show that the HG phase structure becomes an effective design parameter that could be used to control the dispersion in a high-performance multiple-channel dense wavelength-division-multiplexing demultiplexer.
Keywords :
demultiplexing equipment; holographic gratings; lenses; optical communication equipment; optical dispersion; wavelength division multiplexing; channel spectrum; chromatic dispersion; dispersion characteristics; first-order Born approximation; high-performance multiple-channel dense wavelength-division multiplexing demultiplexer; holographic channel demultiplexers; holographic grating demultiplexers; holographic grating phase structure; out-coupling lens aberration; volume diffraction; Arrayed waveguide gratings; Chromatic dispersion; Holography; Mercury (metals); Optical collimators; Optical diffraction; Optical filters; Optical recording; Scattering; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.829773
