2-Gb/s sensitivity of a Ga0.47In0.53As photoconductive detector/GaAs field-effect transistor hybrid photoreceiver

Chen, C. Y.; Kasper, B. L.; Cox, H. M.; Plourde, J. K.
February 1985
Applied Physics Letters;2/15/1985, Vol. 46 Issue 4, p379
Academic Journal
We have measured the 2-Gb/s sensitivity of a photoreceiver consisting of a Ga[sub 0.47] In[sub 0.53] As photoconductive detector and a GaAs low-noise field-effect transistor. For a bit error rate of 10[sup -9], the photoconductive receiver shows a sensitivity of -28.8 dBm at 2 Gb/s and 1.51 µm. In view of its high receiver sensitivity and simplicity, the Ga[sub 0.47] In[sub 0.53] As photoconductive detector may be attractive for applications in high data rate lightwave communication systems, particularly local area networks.


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