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Journal Article Compactly Packaged Monolithic Four-Wavelength VCSEL Array with 100-GHz Wavelength Spacing for Future-Proof Mobile Fronthaul Transport
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Authors
Eun-Gu Lee, Sil-Gu Mun, Sang Soo Lee, Jyung Chan Lee, Jong Hyun Lee
Issue Date
2015-01
Citation
Optics Express, v.23, no.1, pp.284-291
ISSN
1094-4087
Publisher
Optical Society of America(OSA)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1364/OE.23.000284
Abstract
We report a cost-effective transmitter optical sub-assembly using a monolithic four-wavelength vertical-cavity surface-emitting laser (VCSEL) array with 100-GHz wavelength spacing for future-proof mobile fronthaul transport using the data rate of common public radio interface option 6. The wavelength spacing is achieved using selectively etched cavity control layers and fine current adjustment. The differences in operating current and output power for maintaining the wavelength spacing of four VCSELs are <1.4 mA and <1 dB, respectively. Stable operation performance without mode hopping is observed, and error-free transmission under direct modulation is demonstrated over a 20-km single-mode fiber without any dispersion-compensation techniques.
KSP Keywords
Common Public Radio Interface, Direct modulation, Mobile fronthaul, Mode hopping, Operation performance, Output power, Single-mode fiber(SMF), Stable operation, Transmitter Optical Sub-Assembly, VCSEL array, Vertical-cavity surface-emitting laser
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
CC BY