[OPTICAL REVIEW Vol. 17, No. 5 (2010) 443-446]
© 2010 The Japan Society of Applied Physics

Wavelength-Addressed Intra-Board Optical Interconnection by Plug-in Alignment with a Micro Hole Array

Kenichi NAKAMA, Yuu TOKIWA, and Osamu MIKAMI

Graduate School of Science and Technology, Tokai University, 4-1-1 Kitakaname, Hiratsuka, Kanagawa 259-1292, Japan

(Received March 17, 2010; Accepted July 5, 2010)

Intra-board interconnection between optical waveguide channels is suitable for assembling high-speed optoelectronic printed wiring boards (OE-PWB). Here, we propose a novel optical interconnection method combining techniques for both wavelength-based optical waveguide addressing and plug-in optical waveguide alignment with a micro-hole array (MHA). This array was fabricated by the mask transfer method. For waveguide addressing, we used a micro passive wavelength selector (MPWS) module, which is a type of Littrow mount monochromator consisting of an optical diffraction grating, a focusing lens, and the MHA. From the experimental results, we found that the wavelength addressing operation of the MPWS module was effective for intra-board optical interconnection.

Key words: optical interconnection, wavelength addressing, plug-in alignment, optical pin, micro-hole array, diffraction grating