Korea Advanced Institute of Science and Technology

Sang-Rok Mun

Chang-Hee Lee

Sang-Min Oh

Sang-Hwa Yoo

Byungil Seo

Myeonggyun Kye

Joon-Young Kim

Jian Chang

A wavelength tracking Fabry-Perot Laser Diode (F-P LD), and an optical transmitter including the same are disclosed, the wavelength keepable F-P LD including a gain section configured to provide and modulate a gain using an injected first current; and a phase shift/modulation section configured to vary wavelength relative to oscillation mode of light advanced from the gain section by injected second current or voltage and to modulate phases.

Wavelength-maintaining Fabry-Perot Laser Diode and optical transmitter including same

The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same. In a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same, it is possible to improve performance of the wavelength division multiplexed-passive optical network by automatically controlling a lasing wavelength of a tunable laser to be matched with a transmission wavelength of a wavelength division multiplexer/de-multiplexer using optical power or optical beating components obtained by a reflected optical component which is Raleigh backscattered or reflected, and is generated on an optical fiber.

Device and method for controlling lasing wavelength of tunable laser, and a wavelength division multiplexed-passive optical network having the same

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Mokpo-si, South Korea

Sang-Rok Mun