Dual-wavelength external cavity laser with a sampled grating formed in a silica PLC waveguide for terahertz beat signal generation

K. S. Lee, C. S. Kim, R. K. Kim, G. Patterson, Miroslav Kolesik, Jerome V Moloney, Nasser N Peyghambarian

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7 Citations (Scopus)

Abstract

We propose and demonstrate a dual-wavelength external cavity laser (ECL). In our design, a Fabry-Pérot laser diode (FP-LD) is hybrid-integrated with a sampled Bragg grating written in a silica planar lightwave circuit (PLC). The grating selects two laser wavelengths that share the same laser cavity. The dual-wavelength oscillation with a side mode suppression ratio >32 dB has been demonstrated experimentally. Experimental results indicate that the hybrid-integrated dual-wavelength ECL exhibits strong dual-wavelength emission corresponding to beat frequency of 1 THz. Simulations of this system also indicate good mutual coherence of the two modes and stability of the 1 THz beat signal.

Original languageEnglish (US)
Pages (from-to)293-296
Number of pages4
JournalApplied Physics B: Lasers and Optics
Volume87
Issue number2
DOIs
StatePublished - Apr 2007

Fingerprint

laser cavities
synchronism
gratings
silicon dioxide
waveguides
wavelengths
two-wavelength lasers
beat frequencies
Bragg gratings
semiconductor lasers
retarding
oscillations
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

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abstract = "We propose and demonstrate a dual-wavelength external cavity laser (ECL). In our design, a Fabry-P{\'e}rot laser diode (FP-LD) is hybrid-integrated with a sampled Bragg grating written in a silica planar lightwave circuit (PLC). The grating selects two laser wavelengths that share the same laser cavity. The dual-wavelength oscillation with a side mode suppression ratio >32 dB has been demonstrated experimentally. Experimental results indicate that the hybrid-integrated dual-wavelength ECL exhibits strong dual-wavelength emission corresponding to beat frequency of 1 THz. Simulations of this system also indicate good mutual coherence of the two modes and stability of the 1 THz beat signal.",
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T1 - Dual-wavelength external cavity laser with a sampled grating formed in a silica PLC waveguide for terahertz beat signal generation

AU - Lee, K. S.

AU - Kim, C. S.

AU - Kim, R. K.

AU - Patterson, G.

AU - Kolesik, Miroslav

AU - Moloney, Jerome V

AU - Peyghambarian, Nasser N

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AB - We propose and demonstrate a dual-wavelength external cavity laser (ECL). In our design, a Fabry-Pérot laser diode (FP-LD) is hybrid-integrated with a sampled Bragg grating written in a silica planar lightwave circuit (PLC). The grating selects two laser wavelengths that share the same laser cavity. The dual-wavelength oscillation with a side mode suppression ratio >32 dB has been demonstrated experimentally. Experimental results indicate that the hybrid-integrated dual-wavelength ECL exhibits strong dual-wavelength emission corresponding to beat frequency of 1 THz. Simulations of this system also indicate good mutual coherence of the two modes and stability of the 1 THz beat signal.

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