[1] Eindhoven Univ Technol Univ, Inst Photon Integrat, NL-5612 AZ Eindhoven, Netherlands
[2] Fraunhofer Heinrich Hertz Inst, Dept Photon Components, D-10587 Berlin, Germany
[3] Freedom Photon, Goleta, CA 93117 USA
[4] Nippon Telegraph & Telecom, Device Technol Labs, Atsugi, Kanagawa, Japan
[5] Univ Tokyo, Grad Sch Engn, Dept Elect Engn & Informat Syst, Tokyo 1138654, Japan
[6] Micro Encoder Inc, Kirkland, WA 98034 USA