Transverse structure optimization of distributed feedback and distributed Bragg reflector lasers with surface gratings

Uusitalo, Topi; Virtanen, Heikki; Dumitrescu, M.

doi:10.1007/s11082-017-1039-y

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2018

2024

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Cited by 14 publications

(2 citation statements)

References 7 publications

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“…Where λ0 is the lasing wavelength of 0th order. According to the coupling mode theory, the coupling coefficient κ0 of seed grating can be defined as 11,12 :…”

Section: Principle and Simulationmentioning

confidence: 99%

64-channel InP-based laser array with lateral α-Si reconstruction equivalent chirp gratings

Tang,

Wang,

Liu

et al. 2023

Semiconductor Lasers and Applications XIII

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“…Where λ0 is the lasing wavelength of 0th order. According to the coupling mode theory, the coupling coefficient κ0 of seed grating can be defined as 11,12 :…”

Section: Principle and Simulationmentioning

confidence: 99%

64-channel InP-based laser array with lateral α-Si reconstruction equivalent chirp gratings

Tang,

Wang,

Liu

et al. 2023

Semiconductor Lasers and Applications XIII

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“…The single transverse mode operation of the ridge waveguide was first optimized by maximizing the confinement of the fundamental mode under the ridge with respect to the higher order transverse modes. 21 Transverse optical field profiles were obtained from solving the scalar Helmholtz eigenvalue problem with homogeneous Dirichlet boundary conditions using a finite difference scheme. 22 The boundaries were set far away so that they did not interfere with the solution validity.…”

mentioning

confidence: 99%

GaSb superluminescent diodes with broadband emission at 2.55 μm

Zia

Viheriälä

Koivusalo

et al. 2018

Applied Physics Letters

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We report the development of superluminescent diodes (SLDs) emitting mW-level output power in a broad spectrum centered at a wavelength of 2.55 μm. The emitting structure consists of two compressively strained GaInAsSb/GaSb-quantum wells placed within a lattice-matched AlGaAsSb waveguide. An average output power of more than 3 mW and a peak power of 38 mW are demonstrated at room temperature under pulsed operation. A cavity suppression element is used to prevent lasing at high current injection allowing emission in a broad spectrum with a full width at half maximum (FWHM) of 124 nm. The measured far-field of the SLD confirms a good beam quality at different currents. These devices open further development possibilities in the field of spectroscopy, enabling, for example, detection of complex molecules and mixtures of gases that manifest a complex absorption spectrum over a broad spectral range.

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The study on application of high-order tilted asymmetric Bragg gratings in quantum cascade lasers

Liu,

Jiang,

Zhan

et al. 2024

Optics Communications

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Transverse structure optimization of distributed feedback and distributed Bragg reflector lasers with surface gratings

Cited by 14 publications

References 7 publications

64-channel InP-based laser array with lateral α-Si reconstruction equivalent chirp gratings

64-channel InP-based laser array with lateral α-Si reconstruction equivalent chirp gratings

GaSb superluminescent diodes with broadband emission at 2.55 μm

The study on application of high-order tilted asymmetric Bragg gratings in quantum cascade lasers

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