Asymmetric sampled grating laser array for a multiwavelength WDM source

We propose a multiwavelength laser array associated with asymmetric sampled grating lasers. The laser was designed to operate at the first-order reflection of a sampled grating with the aid of an index shifter. A four-channel laser array with 400-GHz wavelength spacing was fabricated and its operati...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 14; no. 12; pp. 1656 - 1658
Main Authors Ryu, Sang-Wan, Kim, Sung-Bock, Sim, Jae-Sik, Kim, Jeha
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Asymmetry
Fiber lasers
Gratings
Laser arrays
Laser feedback
Lasers
Noise levels
Optical arrays
Optical design
Optical device fabrication
Optical feedback
Optical reflection
Reflection
Semiconductor laser arrays
Threshold currents
Wavelength division multiplexing
Wavelengths
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Summary:We propose a multiwavelength laser array associated with asymmetric sampled grating lasers. The laser was designed to operate at the first-order reflection of a sampled grating with the aid of an index shifter. A four-channel laser array with 400-GHz wavelength spacing was fabricated and its operation at designed wavelengths was confirmed. Individual lasers showed a threshold current of 11-17 mA and slope efficiency of around 0.18 W/A. A high side-mode suppression ratio over 39 dB was observed as well.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2002.804642