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Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 19,
  • Issue 1,
  • pp. 84-
  • (2001)

Hybrid Sol-Gel Materials for Integration of Optoelectronic Components

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Abstract

In this paper, we report on the integration of the Bragg filters with 1 8 multimode interference (MMI) power splitters on silicon substrate, and the demonstration of 1 8 external cavity distributed Bragg reflector (DBR) lasers. Hybrid organic-inorganic material is developed based on the sol-gel synthesis of an organically modified silicon alkoxide. The sol-gel material is spin coated on grated SiO2/Si wafers, and the designed components (splitters and filters) are UV imprinted and developed using solvent assisted photolithography. The Bragg reflectors show filtering up to 98% with a bandwidth of about 0.8 nm consistent with their theoretical prediction. Integrated reflectors and MMI splitters are then used as feedback resonators for DBR lasers. Single-mode lasing with sidemode suppressions of up to 40 dB and a linewidth of about 400 kHz is observed. At 1550-nm wavelength, the loss and power uniformity in the MMI splitters,designed on the basis of lowest loss, are, respectively, 0.13 dB and 0.03 dB poorer than their theoretical calculations.

[IEEE ]

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