Patent ID: 7280719

Claim:
A wideband optical module provided in a communication optical line, comprising: a downward wideband light source configured to generate a downward light over a wide wavelength range; an upward wideband light source configured to generate an upward light over a wide wavelength range; a first circulator configured to output multiplexed downward optical signals and to output multiplexed upward optical signals; a second circulator configured to output the multiplexed upward optical signals and to output the multiplexed downward optical signals; at least one coupler being directly coupled to the first circulator and the second circulator and being configured to for partially dividing the multiplexed upward and downward optical signals inputted from the communication optical line; at least one monitor being directly coupled to the coupler and being configured to monitor an intensity of the multiplexed upward and downward optical signals based on a portion of the upward and downward optical signals divided by the optical coupler; and at least one selective coupler being disposed between the first circulator and the second circulator and being coupled to the communication optical line.