TY - JOUR
T1 - Mirror quality and the performance of reflective arrayed-waveguide grating multiplexers
AU - Bernussi, A. A.
AU - de Peralta, L. Grave
AU - Gorbounov, V.
AU - Linn, J. A.
AU - Frisbie, S.
AU - Gale, R.
AU - Temkin, H.
N1 - Funding Information:
Manuscript received September 25, 2003; revised December 2, 2003. This work was supported by the State of Texas under the Technology Development and Transfer program and the Jack F. Maddox Foundation. The authors are with the Department of Electrical and Computer Engineering, Texas Tech University, Lubbock, TX 79409 USA. Digital Object Identifier 10.1109/JLT.2004.831196
PY - 2004
Y1 - 2004
N2 - This paper discusses an investigation of the effects of mirror quality on the performance of reflecting arrayed-waveguide-grating multiplexers. Using specially designed external mirrors as external reflectors, the optimum flatness and microroughness of the reflecting surface are determined. The experiments discussed in the paper indicate that a reflecting-surface flatness of λ/4 is sufficient to obtain high-performance reflective multiplexers. Extrinsic mirror-related phase and intensity errors were found to be negligible for surfaces polished with diamond lapping films with a grain size smaller than 1 μm. These experimental results were found to be in excellent agreement with simulations based on mirror-related changes in the waveguide-grating-length increment.
AB - This paper discusses an investigation of the effects of mirror quality on the performance of reflecting arrayed-waveguide-grating multiplexers. Using specially designed external mirrors as external reflectors, the optimum flatness and microroughness of the reflecting surface are determined. The experiments discussed in the paper indicate that a reflecting-surface flatness of λ/4 is sufficient to obtain high-performance reflective multiplexers. Extrinsic mirror-related phase and intensity errors were found to be negligible for surfaces polished with diamond lapping films with a grain size smaller than 1 μm. These experimental results were found to be in excellent agreement with simulations based on mirror-related changes in the waveguide-grating-length increment.
UR - http://www.scopus.com/inward/record.url?scp=3843099314&partnerID=8YFLogxK
U2 - 10.1109/JLT.2004.831196
DO - 10.1109/JLT.2004.831196
M3 - Article
AN - SCOPUS:3843099314
SN - 0733-8724
VL - 22
SP - 1828
EP - 1832
JO - Journal of Lightwave Technology
JF - Journal of Lightwave Technology
IS - 7
ER -