Narrow-linewidth AlGaAs/GaAs multiple quantum well distributed feedback lasers

Kojima, K.; Hara, Kunihiko; Kameya, Masaaki; Kyuma, Kazuo

doi:10.1049/el:19890170

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1989

1991

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Cited by 6 publications

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“…Mihara and Otobe [40] A minimum linewidth of 1.5 MHZ was achieved for a multiple quantum well DFB fabricated by Ko j ima et al [41].…”

Section: Dfbmentioning

confidence: 99%

Wavelength measurement system for optical fiber communications

Obarski¹

1990

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A wavelength measurement system (lambdameter) for singlemode sources used in optical fiber communications is described. The sources of interest are mainly diode lasers emitting at 1.3 and 1.5 fxm, but the system can be used in the near IR and red regions of the spectrum. Accuracy in wavelength measurement is <0. 1 ppm at the 0.63^m HeNe line by comparing separately each of two adjacent modes from a HeNe laser that is frequencystabilized by a polarization technique, with a single mode from a second similarly frequency-stabilized HeNe laser. Wavelength instability of a commercially packaged 1.52^m distributedfeedback diode laser is in the range ±1 ppm.

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“…Mihara and Otobe [40] A minimum linewidth of 1.5 MHZ was achieved for a multiple quantum well DFB fabricated by Ko j ima et al [41].…”

Section: Dfbmentioning

confidence: 99%

Wavelength measurement system for optical fiber communications

Obarski¹

1990

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Fiber-Optic Resonant Ring Sensors: System and Device Technology

Kyuma¹,

Tai²,

Kojima³

et al. 1989

Springer Proceedings in Physics

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Fabrication and characterization of quantum well wires grown on corrugated GaAs substrates by molecular beam epitaxy

Kojima

Mitsunaga

Kyuma

1990

Applied Physics Letters

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Single quantum wells were grown on GaAs triangular gratings by molecular beam epitaxy. Cross-sectional transmission electron microscopy revealed that the quantum wells had a triangular shape above the ridge of the grating. The photoluminescence spectra at 77 K showed strong anisotropy, indicating that the electrons are confined two dimensionally. The calculation confirmed that the electrons tend to be localized at the corner of the bent quantum well wires, and the effective width of the quantum well wire was estimated to be 30 nm.

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Narrow-linewidth AlGaAs/GaAs multiple quantum well distributed feedback lasers

Cited by 6 publications

References 0 publications

Wavelength measurement system for optical fiber communications

Wavelength measurement system for optical fiber communications

Fiber-Optic Resonant Ring Sensors: System and Device Technology

Fabrication and characterization of quantum well wires grown on corrugated GaAs substrates by molecular beam epitaxy

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