Patent ID: 9729231
Date: 2017-08-08
CPC Classifications: H04B,H04L

Claim:
1. An optical transceiver, comprising: a processing device coupled to a memory; an optical subassembly coupled to the processing device and configured to receive and modulate a first signal carrying high speed user data for transmission to a remote optical transceiver over an optical link; and a programmable device coupled to the processing device and configured to: receive data relating to digital diagnostic monitoring information (DDMI) of the optical transceiver from the processing device; perform forward error correction (FEC) encoding on the data relating to DDMI to produce a remote digital diagnostic monitoring (RDDM) signal; and send the RDDM signal to the optical subassembly as a second signal to modulate, wherein the optical subassembly is further configured to current modulate the second signal on the first signal to produce a double modulated optical signal for transmission to the remote optical transceiver over the optical link, wherein the second signal comprises a laser diode (LD) bias current which is used to current modulate the second signal on the first signal to produce the double modulated optical signal having a modulation depth; and wherein the optical subassembly is configured to generate the double modulated optical signal with the modulation depth in a range of about 4% and about 6%.