Patent ID: 8103162

Claim:
An optoelectronic integrated apparatus, comprising: a protection control unit; a plurality of working optical source links, at least one spare optical source link, and at least one spare data channel corresponding to the at least one spare optical source link; wherein the protection control unit is adapted to detect whether there is any working optical source link faulty, and when detecting that a working optical source link is faulty, control a spare optical source link whose emission wavelength is the same as the faulty working optical source link to fulfill the functions of the faulty working optical source link, and switch the data signal from the working data channel of the faulty working optical source link to the spare data channel of the spare optical source link when detecting that the working optical source link is faulty; and wherein the spare optical source link is adapted to modulate the optical signal generated by the spare optical source link using the data signal from the spare data channel, and transmit the modulated optical signal; wherein the protection control unit comprises: a top-layer control unit, a data switching unit, an optical source link control unit, and a link monitoring unit, wherein the link monitoring unit is adapted to examine the performance of a working optical source link and transmit a monitored performance information of the working optical source link to the optical source link control unit; the optical source link control unit is adapted to determine whether the working optical source link is faulty in accordance with the received monitored performance information of the working optical source link, transmit the fault information of the faulty working optical source link to the top-layer control unit when determining the working optical source link is faulty, and shut down the output of the faulty working optical source link on receiving the indication of turning on the spare optical source link; the top-layer control unit is adapted to transmit an indication to the optical source link control unit for turning on the spare optical source link on receiving the fault information of the working optical source link, and transmit a switching indication to the data switching unit for switching the electric signal from the working data channel of the faulty working optical source link to the spare data channel of the spare optical source link; and the data switching unit is adapted to switch the electric signal from the working data channel of the faulty working optical source link to the spare data channel of the spare optical source link on receiving the switching indication.