Patent ID: 9654210
Date: 2017-05-16
CPC Classifications: B01J,B65G,C10B,C10J,H04B,H04J,H04Q

Claim:
1. An optical network comprising: a first optical transmitter arranged to generate and transmit a first optical signal, a first optical receiver arranged to detect a second optical signal, and a first controller arranged to control said first optical transmitter to generate and transmit said first optical signal at a wavelength selected from a predetermined plurality of wavelengths; a second optical transmitter arranged to generate and transmit said second optical signal, a second optical receiver arranged to detect an optical signal having a wavelength within a receiving wavelength band, and a second controller being arranged to control said second optical transmitter to generate and transmit said second optical signal in response to said second optical receiver detecting said first optical signal at said wavelength within said receiving wavelength band; and said first controller being arranged to control said first optical transmitter to iteratively generate and transmit said first optical signal at different wavelengths of said plurality of wavelengths until said second optical signal is detected by said first optical receiver, while the first optical receiver remains operable to detect the second optical signal at the same wavelength in each iteration, and being further arranged to maintain generation and transmission of said first optical signal at said wavelength within said receiving wavelength band, in response to the detection of said second optical signal by said first optical receiver.