| 摘要 |
The invention of the present disclosure is an in-line bi-directional fiber-optic link that transmits at one optical wavelength, and receives at another optical wavelength. The link is anticipated to be the low cost transceiver unit serving as one of many such links between a main transceiver station and a large number of end users. For example, the device could well be the low cost transceiver for FTTH applications, as well as many other such applications. To effect the desired low-cost transceiver link, a PIN diode is fabricated having an InxGa1-xAsyP1-y intrinsic layer instead of the usual InxGa1-xAs intrinsic layer and which is engineered to have a bandgap corresponding to a wavelength of about 1.4 microns. In line with this detector is a light source that emits at roughly 1.55 microns.
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