Optical fiber-coupled variable attenuator using a MARS modulator

Details Optical fiber-coupled variable attenuator using a MARS modulator Optical fiber-coupled variable attenuator using a MARS modulator

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spie.3226...86f&link_type=abstract

Proc. SPIE Vol. 3226, p. 86-93, Microelectronic Structures and MEMS for Optical Processing III, M. Edward Motamedi; Hans P. Herz

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Opto-mechanical fiber-optic attenuators are bulky and slow. The MARS (mechanical anti-reflection switch) modulator offers a high-speed alternative, with less than 10 microsecond response and 30 dB analog dynamic range. This talk describes a compact low-loss package with separate input and output fibers held in a single ceramic ferrule, a tiny (0.5 X 1 mm) gradient index lens, and a reflective MARS modulator in the collimated beam plane. This component has applications in telecommunications for line build out and dynamic amplifier gain control.

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