BROWSE
Detail
Journal Article
Widely Tunable Multichannel Grating Cavity Laser
Cited 14 time in 
Share 
Share
- Authors
- Oh Kee Kwon, Jong Hoi Kim, Kang Ho Kim, Eun Deok Sim, Kwang Ryong Oh
- Issue Date
- 2006-08
- Citation
- IEEE Photonics Technology Letters, v.18, no.16, pp.1699-1701
- ISSN
- 1041-1135
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- A widely tunable grating cavity laser based on the Rowland circle construction for a concave grating is proposed and demonstrated. The device is implemented by employing multichannel array structure in a Littman configuration and fabricated by integrating all elements in an InP substrate. Only one channel is turned on at a time, with coarse tuning realized by selecting the appropriate element in the channel array and fine tuning by controlling the beam deflection provided by dispersive element. An overall tuning range of 50 nm with a sidemode suppression ratio of more than 30 dB has been achieved for the six-channel device. © 2006 IEEE.
- KSP Keywords
- Circle construction, Concave grating(CG), InP substrate, Littman configuration, Multichannel array, Tuning Range, Widely tunable, array structure, beam deflection, coarse tuning, dispersive element