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TUNABLE ELECTRO-ABSORPTION MODULATOR AND TUNABLE LASER
TUNABLE ELECTRO-ABSORPTION MODULATOR AND TUNABLE LASER
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机译:可调谐电吸收调制器和可调谐激光器
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摘要
An electro-absorption modulator is tunable along with the laser. Tuning the electro-absorption modulator permits optimum detuning to be 5 maintained, even though the laser is tuned over several tens of nm. One approach to tuning the electro-absorption modulator is to heat the electro-absorption modulator. A semiconductor laser device includes a semiconductor laser positioned on a substrate. The semiconductor laser produces output light that is tunable over a tuning range between a first wavelength and a second wavelength. An electro-absorption modulator is disposed to modulate the light produced by the semiconductor laser. The operating temperature of the electro-absorption modulator is tunable so as to maintain constant detuning over at least a portion of the tuning range.
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