ARRAYED WAVEGUIDE GRATING BASED HYBRID INTEGRATED LASER HAVING ADJUSTABLE EXTERNAL CAVITY
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United States of America Patent
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Dec 29, 2014
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Dec 19, 2014
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Abstract
An arrayed waveguide grating based hybrid integrated laser has an adjustable external cavity. The waveguide includes a semiconductor gain die and an optical waveguide chip. The optical waveguide chip includes an arrayed waveguide grating and an arrayed waveguide reflection-controllable component. A resonant cavity is formed by the output end reflection-controllable arrayed waveguide grating chip and the semiconductor gain die. An output wavelength of the laser can be adjusted by changing a driving condition of the reflection-controllable component. The output wavelength is determined by a center wavelength of each channel of the arrayed waveguide grating.
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