Compact wavelength monitoring by lateral outcoupling in wedged photonic crystal multimode waveguides - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2005

Compact wavelength monitoring by lateral outcoupling in wedged photonic crystal multimode waveguides

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Abstract

A device concept for laterally extracting selected wavelengths from an optical signal traveling along a waveguide, for operation in metropolitan area networks, is presented. The signal on the fundamental mode of a multimode photonic crystal waveguide is coupled to a higher-order mode, at a center frequency that spatially depends on the slowly varying guide parameters. The device is compact, intrinsically fault tolerant, and can split any desired fraction of the signal for monitoring purpose. Characterizations by the internal light source technique validate the optical concept whereas an integrated device with four photodiodes qualifies its potential with respect to real-world applications.
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Dates and versions

hal-00876974 , version 1 (25-10-2013)

Identifiers

Cite

Emilie Viasnoff-Schwoob, Claude Weisbuch, Henri Benisty, Cornélia Cuisin, Estelle Derouin, et al.. Compact wavelength monitoring by lateral outcoupling in wedged photonic crystal multimode waveguides. Applied Physics Letters, 2005, 86 (10), pp.101107. ⟨10.1063/1.1879105⟩. ⟨hal-00876974⟩
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