Abstract
Quantum well (QW) lasers and modulators have been reported extensively in the GaAs/GaAlAs material system. As optical fibers have a loss minimum at 1.55 micron wavelength, there is a strong motivation to explore quantum well devices in this wavelength range for the special requirements of lightwave communication systems. Recently we have reported a four quantum well separate confinement heterostructure InGaAs/InGaAsP laser operating at 1.54 micron wavelength with a high output power and a low internal loss [1].
© 1988 Optical Society of America
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