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AssigneeADC Telecommunicatiions, Inc.
InventorJan-Olof Wesström
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A method for frequency and mode stabilisation of a tuneable laser that has at least three sections, such as a Bragg laser or GCSR laser, where measurable magnitudes are measured and the laser has been characterised with respect to a number of operation points, and where the values of the measurable magnitudes are stored in a microprocessor or corresponding device. The invention is characterised in that the values of one or more of the measurable magnitudes (E) are caused to be non-extreme values; in that the measurable magnitudes include back power in addition to front power and frequency; and in that control currents (I1, I2, I3; I1, I2, I3, I4) for the gain section (P1), the phase section (N2; N3) and the reflector section (N3; N4) respectively of said laser, and when applicable also for the coupler section (N2) of said laser, are caused to be controlled on the basis of the measured values of said measurable magnitudes while keeping both the front power and back power constant.
A method for frequency and mode stabilizing a tunable laser having at least a gain section, a phase section and a reflector section, measurable characteristics of the laser having been measured and resultant measured values of the characteristics having been stored in a memory, the laser having been characterized with respect to a number of operation points, the measured values of one or more of the measurable characteristics being non-extreme values, the measurable characteristics including front and rear powers, and frequency, the method comprising:
Dependencies are inferred from the claim text.