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Mise au point d'un duplexeur pompe/signal à base de guides segmentés en optique intégrée sur verre

Abstract : Each integrated optics technology has his own advantages, well specific for different application
domains. For example, LiNbO3 substrates are widely used in electro-optic devices while III-V semiconductors
are very useful for optical sources. The integration of heterogeneous optical functions
and materials is consequently a difficult task. For example, for integrated optics by ion-exchange
on glass, substrates used for active and passive devices are different and incompatible. To address
this problem, the concept and the fabrication of the hybrid structure have been studied at IMEP
laboratory. This structure is composed by an active glass layer reported by molecular bonding on
a passive glass substrate with an ion exchanged waveguide. The hybrid structure represents an
attractive solution to fabricate an active amplifying waveguide on a passive substrate, but related
interfacing devices should be developed to be compatible with the hybridization techniques. In
this context, we study the realization of a pump/signal duplexer working on the 980 nm/1550 nm
range using a segmented asymmetric Y junction. At first, after analyzing the working principles of
the asymmetric junction, a detailed theoretical and experimental study of segmented waveguides
is presented. Then, the segmented asymmetric Y junction is studied theoretically and experimentally,
leading us to obtain a demultiplexer with (26 ± 1) dB of isolation at the l = 980 nm pump
wavelength, with (2.8±0.1) dB of insertion losses. For the signal, isolation rises from (9.7±0.1) dB
at ! = 1500 nm up to (15±0.1) dB at l = 1600 nm while insertion losses are between (3.1±0.1) dB
and (3.5 ± 0.1) dB in this spectral band. Perspectives of this work include an optimization of
performances and the integration with an hybrid structure in order to fabricate a monolithically
integrated optical amplifier.
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Contributor : Davide Bucci <>
Submitted on : Tuesday, February 27, 2007 - 2:07:37 PM
Last modification on : Wednesday, March 10, 2021 - 9:50:02 AM
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  • HAL Id : tel-00133672, version 1



Davide Bucci. Mise au point d'un duplexeur pompe/signal à base de guides segmentés en optique intégrée sur verre. Optique / photonique. Institut National Polytechnique de Grenoble - INPG, 2006. Français. ⟨tel-00133672⟩



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