Single-mode operation of a surface grating distributed feedback GaAs-AlGaAs laser with variable-width waveguide

Abe, Hiroaki; Ayling, S.G.; Marsh, J.H.; Rue, R.M. De La; Roberts, J.S.

doi:10.1109/68.384507

Cited by 40 publications

(15 citation statements)

References 7 publications

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“…There are several reports on DFB lasers with side-coupled gratings, where the grating is placed along a ridge waveguide (RW) [3], [4]. These gratings, however, function only for fundamental spatial mode lasers with a narrow RW due to a weak overlap of the optical mode with the grating placed outside the ridge.…”

Section: Introductionmentioning

confidence: 98%

High-Power Distributed Feedback Lasers With Surface Gratings

Fricke

Wenzel

Bugge

et al. 2012

IEEE Photon. Technol. Lett.

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We present the results for high-power broad-area distributed feedback lasers with surface gratings of 80th, 135th, and 270th Bragg orders. A maximum output power of 11 W for a laser with 80th order grating, emitting around 976 nm with a spectral width <1 nm has been achieved. Similar narrow linewidth operation occurs for devices with 135th Bragg order from 7-to 11-W output power. The technological approach to fabricating these devices based on stepper lithography and reactive ion etching is described.

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Section: Introductionmentioning

confidence: 98%

High-Power Distributed Feedback Lasers With Surface Gratings

Fricke

Wenzel

Bugge

et al. 2012

IEEE Photon. Technol. Lett.

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“…The grating can be simultaneously lithographically patterned and etched along with the ridge waveguide, significantly simplifying the device manufacturing process. The regrowth-free approach enables Al-containing epitaxial layers to be used, as there is no exposure of surfaces containing Al, which can oxidize and cause problems during epitaxial regrowth [9]. The results presented in this report suggest that our device could be used as a practical compact, stable, solid-state laser source for generating THz radiation using a photoconductive antenna [3] or nonlinear optical crystal [10].…”

mentioning

confidence: 71%

Laterally coupled dual-grating distributed feedback lasers for generating mode-beat terahertz signals

et al. 2015

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We present a laterally-coupled dual wavelength 1.56/1.57 μm AlGaInAs/InP DFB laser, which, by introducing of two different grating periods on each sidewall, emits two longitudinal modes simultaneously within the same cavity at a frequency separation of 0.82 THz. The beating signal is stabilized by nonlinear four-wave mixing in an electroabsorption modulator (EAM), located within a monolithically integrated resonant cavity. A stable 0.82 THz beating signal was observed over a wide range of bias parameters in terms of drive currents and bias to the DFB and EAM sections.

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“…In this letter, results on the design, fabrication and characterization of a novel InAlGaAs-InP dual-wavelength laterally coupled DFB laser [7] of them selecting two different wavelengths and . The novel approach reported here consists of defining two different grating periods, one on each side of the ridge waveguide ( Fig.…”

Section: Introductionmentioning

confidence: 99%

Dual-Wavelength InAlGaAs–InP Laterally Coupled Distributed Feedback Laser

Pozzi

Rue

Sorel

2006

IEEE Photon. Technol. Lett.

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The design and operation of a novel dual-wavelength laterally coupled (LC) distributed feedback (DFB) semiconductor laser are reported. The laser has two different grating periods, one on each sidewall. Stable dual-mode emission, with low threshold currents and good extinction ratio approaching 30 dB, has been demonstrated. Generation of millimeter-wave signals by photomixing has been performed, and the linewidths of each of the individual modes and of the beat mode have been measured as a function of the injection current. It is observed that while the linewidth of the separate modes has a modest dependence on the injection level, the linewidth of the beat mode experiences a strong decrease as the injected current increases.

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Single-mode operation of a surface grating distributed feedback GaAs-AlGaAs laser with variable-width waveguide

Cited by 40 publications

References 7 publications

High-Power Distributed Feedback Lasers With Surface Gratings

High-Power Distributed Feedback Lasers With Surface Gratings

Laterally coupled dual-grating distributed feedback lasers for generating mode-beat terahertz signals

Dual-Wavelength InAlGaAs–InP Laterally Coupled Distributed Feedback Laser

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