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Journal Article
Widely Tunable Grating Cavity Lasers
- Authors
- Oh Kee Kwon, Eun Deok Sim, Kang Ho Kim, Jong Hoi Kim, Ho Gyeong Yun, O Kyun Kwon, Kwang Ryong Oh
- Issue Date
- 2006-10
- Citation
- ETRI Journal, v.28, no.5, pp.545-554
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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.
- KSP Keywords
- Applied current, Circle construction, Control section, Echelle grating, Grating cavity lasers, InP substrate, Littman configuration, Phase control, Tuning Range, Widely tunable, dispersive element