Very high relaxation oscillation frequency in dry-etched short cavity GaAs/AlGaAs multiquantum well lasers

Yuasa, Tonao; Yamada, Tomoyuki; Asakawa, Kiyoshi; Ishii, Makoto; Uchida, Mamoru
April 1987
Applied Physics Letters;4/27/1987, Vol. 50 Issue 17, p1122
Academic Journal
Relaxation oscillation frequencies are reported for short cavity GaAs/AlGaAs multiquantum well lasers with dry-etched facets. Decreased electron and photon lifetimes combined with the high differential gain constant of short cavity lasers yield very high relaxation oscillation frequencies. A peak value of 24 GHz was achieved with a 40-μm-long laser, and a linear relationship between frequency and the square root of the output power is observed.


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