Adjustment device and adjusting method for stabilizing optical characteristic parameters

An adjustment device for stabilizing optical characteristic parameters applicable to a transmitter optical subassembly with a silicon photonic chip, comprising:

• a first control component, connected to the transmitter optical subassembly, configured to receive an initial optical signal emitted by the transmitter optical subassembly and control a phase setting parameter of the silicon photonic chip according to a phase target value so as to change the transmitter optical subassembly from emitting the initial optical signal to emitting a first modified optical signal;
• a second control component, connected to the transmitter optical subassembly, configured to receive the first modified optical signal and control a bias current of the transmitter optical subassembly according to a power target value so as to change the transmitter optical subassembly from emitting the first modified optical signal to emitting a second modified optical signal;
• and
• a control unit, connected to the first control component and the second control component, configured to transmit the phase target value to the first control component, and transmit the power target value to the second control component when the first modified optical signal conforms to the phase target value, wherein the control unit is configured to determine whether the phase value of the first modified optical signal conforms to the phase target value in a predetermined phase detection period and is configured to determine whether the second modified optical signal conforms to the power target value in a predetermined power detection period, wherein the phase detection period is less than the power detection period.