Japanese Journal of Applied Physics · 2012 · 17 citations · 15 references
EngineeringElectrical EngineeringOptical MaterialsOptoelectronicsPhotonicsIntegrated OpticsOptical AmplifiersOptical WaveguidesPhotonic Integrated CircuitsSemiconductor LasersTerahertz PhotonicsDistributed Bragg Reflector LasersLasersTerahertz GenerationTerahertz Integrated PhotonicsTerahertz Semiconductor DevicesTerahertz SourcesTerahertz WaveguidesTerahertz Waves
An integrated two-wavelength distributed Bragg reflector (DBR) laser consisting of two DBR lasers and a Y-branch waveguide amplifier was designed and fabricated. The optical waves from the two DBR lasers are combined into a single output channel of the Y-branch waveguide amplifier and emitted from the output facet. Laser performances of the same output level of ∼10 mW and a wavelength difference of 1.0–3.7 nm (0.47–1.8 THz beat frequency) with a side-mode suppression ratio of 30 dB were obtained. Coherent THz wave generation was also demonstrated by photomixing of the integrated two-wavelength laser output.
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Terahertz photomixing with diode lasers in low-temperature-grown GaAs
K. A. McIntosh, E. R. Brown, K. B. Nichols et al. · Applied Physics Letters · 1995 · 319 citations