Widely Tunable Grating Cavity Lasers

A widely tunable multi-channel grating cavity laser is proposed and experimentally demonstrated. The device is implemented in Littman configuration with an echelle grating based on Rowland circle construction and realized by monolithically integrating all elements in an InP substrate. Lasing wavelen...

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Published in:ETRI journal 2006-02, Vol.28 (5), p.545-554
Main Authors: Kwon, Oh-Kee, Sim, Eun-Deok, Kim, Kang-Ho, Kim, Jong-Hoi, Yun, Ho-Gyeong, Kwon, O-Kyun, Oh, Kwang-Ryong
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container_issue 5
container_start_page 545
container_title ETRI journal
container_volume 28
creator Kwon, Oh-Kee
Sim, Eun-Deok
Kim, Kang-Ho
Kim, Jong-Hoi
Yun, Ho-Gyeong
Kwon, O-Kyun
Oh, Kwang-Ryong
description A widely tunable multi-channel grating cavity laser is proposed and experimentally demonstrated. The device is implemented in Littman configuration with an echelle grating based on Rowland circle construction and realized by monolithically integrating all elements in an InP substrate. Lasing wavelength is selected by turning on an amplifier and the appropriate channel element in the array, and it is tuned by controlling light deflection electrically. The 6-channel device exhibits a tuning range of about 50 nm with a side mode suppression ratio of more than 30 dB. This is accomplished by adjusting the applied current of the dispersive element and phase control section.
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title Widely Tunable Grating Cavity Lasers
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