Wavemeter system using a set of optical chips

A method for determining a precise wavelength of an input optical signal using a wavemeter device, the method comprising:

• generating, by a coarse wavelength unit of the wavemeter device, a coarse wavelength measurement of the input optical signal;
• selecting, by processing circuitry of the wavemeter device, an optical chip from a plurality of optical chips, the optical chip corresponding to a range of wavelengths identified in the coarse wavelength measurement;
• generating, using a detector array coupled to the optical chip, a partial interferogram based on the at least the portion of the input optical signal;
• calculating, by the processing circuitry, an optical spectrum of the input optical signal based on the partial interferogram corresponding to the at least the portion of the input optical signal and a calibration matrix for the wavemeter device;
• and
• identifying, by the processing circuitry and based on the optical spectrum of the input optical signal, the precise wavelength of the input optical signal.

A wavemeter device for determining a precise wavelength of an input optical signal, the wavemeter device configured to:

• generate, by a coarse wavelength unit of the wavemeter device, a coarse wavelength measurement of the input optical signal;
• select, by processing circuitry of the wavemeter device, an optical chip from a plurality of optical chips, the optical chip corresponding to a range of wavelengths identified in the coarse wavelength measurement;
• generate, using a detector array coupled to the optical chip, a partial interferogram based on the at least the portion of the input optical signal;
• calculate, by the processing circuitry, an optical spectrum of the input optical signal based on the partial interferogram corresponding to the at least the portion of the input optical signal and a calibration matrix for the wavemeter device;
• and
• identify, by the processing circuitry and based on the optical spectrum of the input optical signal, the precise wavelength of the input optical signal.