Title :
Polarization insensitive waveguide grating routers in InP
Author :
Sarathy, J. ; Chandrasekhar, S. ; Dentai, A.G. ; Doerr, C.R.
Author_Institution :
Bell Labs., Lucent Technol., Holmdel, NJ, USA
Abstract :
We demonstrate a 16-channel waveguide grating router (WGR) in the InP-based material system. The channel spacing of the WGRs is 100 GHz and the maximum interchannel crosstalk is -28 dB. The polarization related (TE-TM modal) wavelength shift is approximately 0.08 nm and the polarization dependent variation in peak signal is less than 0.2 dB. 2.60-μm-wide ×1.90-μm-thick raised-stripe InGaAsP Quaternary (/spl lambda//sub g/=1.17 μm) waveguides on an n-type InP substrate make up the basis paths of the WGR. We describe the design, fabrication and the results of measurement of the 16-channel polarization-insensitive WGR.
Keywords :
III-V semiconductors; diffraction gratings; indium compounds; optical communication equipment; optical waveguide components; telecommunication network routing; InGaAsP quaternary compound; InGaAsP-InP; TE-TM modal wavelength shift; channel spacing; interchannel crosstalk; n-type InP substrate; polarization insensitive waveguide grating router; Gratings; Indium phosphide; Optical crosstalk; Optical devices; Optical fiber polarization; Optical modulation; Optical waveguides; Semiconductor optical amplifiers; Stimulated emission; Substrates;
Journal_Title :
Photonics Technology Letters, IEEE
