16 May 2001 Study of scalability for micromachined free-space optical cross-connects
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Proceedings Volume 4290, Optoelectronic Integrated Circuits and Packaging V; (2001) https://doi.org/10.1117/12.426907
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States
One of the main promising applications of micro-machining in All-Optical-Networks (AON) is represented by free-space electro-mechanical Optical Cross Connects (OXCs); free-space components show lower attenuation and lower cross-talk than concurrent technologies based on wave-guides. Although micromachined electro-mechanical OXCs have been recently introduced into the market, further commercialization of devices with increased input/output port-count will certainly require decreasing insertion losses by proper design techniques of both, the electromechanical devices and the system packaging. Among different proposed micromachined architectures, one suitable for small- to medium-size cross-connects id defined by a two-dimensional array of tw-state microreflectors where signal routing occurs in a single plane parallel to the substrate; in this architecture, signals come from and go into Single-Mode Fibers (SMF) collimated by GRIN lenses. This paper discusses different losses mechanisms in micromachined free- space mirror-based OXCs, including both fiber/mirror misalignments on insertion losses. A third section analyzes the effects of imperfect micro-mirrors on insertion losses including finite mirror-size, orientation error, reflectivity and scattering. Finally, conclusions on the required fiber-packaging accuracy and the scalability of micromachined free-space OXCs are presented.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Sergio O. Martinez, Sergio O. Martinez, Bernard Courtois, Bernard Courtois, } "Study of scalability for micromachined free-space optical cross-connects", Proc. SPIE 4290, Optoelectronic Integrated Circuits and Packaging V, (16 May 2001); doi: 10.1117/12.426907; https://doi.org/10.1117/12.426907

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