Abstract

A new type of optical switch is constructed of graded-index rod lenses. It is operated mechanically by small electromagnets. This switch is compatible with practical multimode-fiber communication systems. It has many outstanding features, such as low insertion loss (1.3–1.4 dB), low crosstalk (<−60 dB), high stability (< 0.1 dB), low driving power (~5V dc, 100 mA), high durability (>2 × 106 times), and small size (40 × 50 × 25 mm3).

© 1979 Optical Society of America

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