SWITCHED RADIO FREQUENCY (RF) DRIVER FOR TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS

摘要

A tunable laser with multiple in-line sections generally includes a semiconductor laser body with a plurality of in-line laser sections each configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. The wavelength of the light generated in each of the laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. A switch module may be configured to couple a signal from a laser driver to a selected one of the plurality of in-line laser sections, wherein the signal modulates the laser light generated by the in-line laser section. The selected in-line section may be DC biased to a lasing state and the non-selected in-line sections may be DC biased to a non-lasing or transparent state.

主权项

1. A tunable laser comprising:
a semiconductor laser body including a plurality of in-line laser sections each configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range, wherein each of the plurality of in-line laser sections is tunable in response to temperature changes to generate a selected wavelength within the respective wavelength range; and a switch module configured to couple a signal from a laser driver to a selected one of said plurality of in-line laser sections, wherein said signal modulates said laser light generated by said in-line laser section.