Hybrid sol-gel materials for integration of optoelectronic components

M. Amir Fardad, Oleg V. Mishechkin, Mahmoud Fallahi

Research output: Contribution to journalArticle

38 Citations (Scopus)

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.

Original languageEnglish (US)
Pages (from-to)84-91
Number of pages8
JournalJournal of Lightwave Technology
Volume19
Issue number1
DOIs
StatePublished - Jan 2001

Fingerprint

DBR lasers
Optoelectronic devices
Sol-gels
gels
Bragg reflectors
interference
Silicon
Photolithography
Laser modes
Linewidth
filters
Resonators
Demonstrations
inorganic materials
alkoxides
silicon
photolithography
Feedback
Bandwidth
Wavelength

Keywords

  • Bragg filters
  • Distributed Bragg reflector (DBR) lasers
  • Hybrid integration
  • Multimode interference (MMI)
  • Sol-gel process
  • Splitters

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

Hybrid sol-gel materials for integration of optoelectronic components. / Amir Fardad, M.; Mishechkin, Oleg V.; Fallahi, Mahmoud.

In: Journal of Lightwave Technology, Vol. 19, No. 1, 01.2001, p. 84-91.

Research output: Contribution to journalArticle

Amir Fardad, M. ; Mishechkin, Oleg V. ; Fallahi, Mahmoud. / Hybrid sol-gel materials for integration of optoelectronic components. In: Journal of Lightwave Technology. 2001 ; Vol. 19, No. 1. pp. 84-91.
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