论文信息 - Diffraction gratings utilizing total internal reflection facets in Littrow configuration

Diffraction gratings utilizing total internal reflection facets in Littrow configuration

The shape of the grooves of a diffraction grating can be designed to take advantage of total internal reflection. We demonstrate the effectiveness of the total internal reflection (TIR) grating numerically for the bulk optic case. The results indicate that the efficiency of the retrodiffracted order is enhanced by as much as 11 dB when the TIR grating design is used in place of a blazed grating with no facet metallization.

K. McGreer | K.A. McGreer | M.S.D. Smith | M. Smith

[1] K. McGreer,et al. Demultiplexer with 120 channels and 0.29-nm channel spacing , 1998, IEEE Photonics Technology Letters.

[2] P. Vincent. Integral equation computation of bump grating efficiencies in TE polarization , 1993 .

[3] Rajaram Bhat,et al. Monolithic InP/InGaAsP/InP Grating Spectrometer for the 1.48-1.56 μm Wavelength Range , 1991 .

[4] Karl Knop,et al. Rigorous diffraction theory for transmission phase gratings with deep rectangular grooves , 1978 .

[5] Daniel Maystre,et al. Experimental Verifications and Applications of the Theory , 1980 .

[6] M. Smit. New focusing and dispersive planar component based on an optical phased array , 1988 .

[7] Andre Delage,et al. Monolithic integrated wavelength demultiplexer based on a waveguide Rowland circle grating in InGaAsP/lnP , 1998 .

[8] G. Heise,et al. Grating spectrograph integrated with photodiode array in InGaAsP/InGaAs/InP , 1992, IEEE Photonics Technology Letters.

[9] K. A. McGreer,et al. Integrated concave grating WDM demultiplexer with 0.144 nm channel spacing , 1997 .