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Conference Paper
Monolithically Integrated External Cavity Wavelength Tunable Lasers with a Diffraction Grating and Beam Steering Controller
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- Authors
- Kang Ho Kim, Oh Kee Kwon, Jong-Hoi Kim, Eun Dok Sim, Hyun Soo Kim, Kwang Ryong Oh
- Issue Date
- 2005-07
- Citation
- International Conference Transparent Optical Networks (ICTON) 2005
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- We present an external cavity tunable laser based on beam steering and grating-assisted diffraction in a Littrow configuration by monolithically integrating a semiconductor optical amplifier, an etched grating, and a beam steering controller with two current injecting stripes. We have demonstrated the wavelength tuning by steering the beam toward the grating, which is controlled by varying the injection current into the stripe. As a result, the tuning range of 11.9 nm with the side mode suppression ratio from 35 to 45 dB has been achieved. ©2005 IEEE.
- KSP Keywords
- Diffraction grating, External cavity, Injection current, Littrow configuration, Semiconductor optical amplifiers(SOAs), Tuning Range, Wavelength tunable laser(WTL), beam steering, monolithically integrated, side mode suppression ratio(SMSR), wavelength tuning