Patent ID: 7167493
Filing Date: 2007-01-23
Classification: H01S

Abstract:
1. A method for automatically revising a wavelength of an electro-absorption modulator integrated laser diode (EML), the method comprising the steps of: a) initializing values of a working temperature, an amplifying voltage and a DC-Offset voltage, and resetting the DC-Offset voltage, wherein the amplifying voltage controls absorption of the electro-absorption modulator; b) determining a wavelength with respect to the re-set DC-Offset voltage based on a first functional relation between the DC-Offset voltage and the wavelength of the EML under the amplifying voltage; c) determining a revising working temperature for the determined wavelength based on a second functional relation between the working temperature and the wavelength of the EML; and d) re-setting the working temperature with the revising working temperature.