Dual-wavelength emission from a twin-stripe single quantum well laser

Tokuda, Yasunori; Abe, Yuji; Matsui, Teruhito; Tsukada, Noriaki; Nakayama, Takashi
November 1987
Applied Physics Letters;11/23/1987, Vol. 51 Issue 21, p1664
Academic Journal
We demonstrate a dual-wavelength laser constructed from a single quantum well structure. The device includes twin-stripe waveguides which differ in width. The two constituent emitters in the device of appropriate cavity lengths operate at widely different wavelengths, which are based on the lowest (n=1) and the second (n=2) quantized state transitions. Lasing behavior is interpreted in terms of the difference of the internal cavity loss of the waveguides.


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