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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CFD4

Strained-layer single quantum-well InGaAsP/InP lasers for wavelength range from 1.43 μm to 1.55 μm

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Abstract

Strained-layer (SL) single-quantum-well (SQW) lasers in the short wavelength range from 0.9 μm to 1.1 μm have been extensively reported.1-2 For long wavelengths near 1.55 μm, however, only multiple-quantum-well (MQW) structures have been employed for strained-layer (≤50 Å thick) lasers.3,4 A low internal loss is required for a SL-SQW laser because of the very thin gain medium and a poorer temperature effect on the threshold for long wavelengths than for short wavelengths. Recently, pulsed operation of broad area (50 μm wide stripe) InGaAs/InGaAsP 1.5-μm SL-SQW lasers has been demonstrated.5 We report in this paper CW operation of a single-transverse-mode SL-SQW laser at 1.55 μm wavelength. Furthermore, we have demonstrated laser oscillation in the wavelength range from 1.43 μm to 1.55 μm, including the 1.47 μm wavelength which is of interest for pumping Er-doped fiber amplifiers.

© 1991 Optical Society of America

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