B. Pezeshki, E. Vail, J. Kubicky, G. Yoffe, S. Zou, P. Epp, S. Rishton, D. Ton, B. Faraji, M. Emanuel, R. King, X. Hong, M. Sherback, V. Agrawal, and T. Razazan, "12 element multi-wavelength DFB arrays for widely tunable laser modules,"
in Optical Fiber Communications Conference, A. Sawchuk, ed.,
Vol. 70 of OSA Trends in Optics and Photonics
(Optical Society of America, 2002), paper ThGG71.