A frequency stabilization arrangement for dense wavelength division multiplexing systems

A frequency stabilization scheme using a tunable twin-guide (TTG) laser diode and a Bragg grating filter on a passive waveguide is proposed. This arrangement is fully compatible with the technologies of monolithic integrated optics. The concept was tested in a hybrid assembly. The frequency drift at laser temperature was 820 MHz/ degrees C and the tuning rate at output power was 310 MHz/mW.<
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