Widely separate wavelength switching of single quantum well laser diode by injection-current control

Tokuda, Yasunori; Tsukada, Noriaki; Fujiwara, Kenzo; Hamanaka, Koichi; Nakayama, Takashi
December 1986
Applied Physics Letters;12/15/1986, Vol. 49 Issue 24, p1629
Academic Journal
It is demonstrated for the first time that by injection-current control, the lasing wavelength was able to be switched from the lowest (n=1) quantized state transition to the second (n=2) transition for a single quantum well laser diode. The separation in energy was as wide as >50 meV. This novel function of a laser was realized as a result of appropriately increased threshold gain. This diode, moreover, acted as a multiple wavelength-emitting laser.


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