AI Article Synopsis
- - An experimental method showcases how a dual-transverse-mode microsquare laser can effectively generate millimeter-wave (mmW) carriers by direct modulation at 6.7 GHz.
- - This approach produces multiple sidebands due to nonlinear modulation, achieving phase-locked lasing modes at a 40 GHz interval.
- - The result is high-quality mmW carriers reaching up to 47 GHz with low linewidth and consistent phase noise even after traveling 2.5 km through optical fiber.
Article Abstract
An effective method for millimeter-wave (mmW) carrier generation from a dual-transverse-mode microsquare laser is experimentally demonstrated. By directly modulating the dual-mode microsquare laser at 6.7 GHz, multiple sidebands are generated due to enhanced modulation nonlinearity, and the lasing modes with an interval of 40 GHz are phase-locked. MmW carriers up to 47 GHz, corresponding to seven times that of the modulation frequency, are achieved with a linewidth below 10 Hz. The single-sideband phase noises of the signals keep the same level after transmission over 2.5 km of optical fiber.
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| http://dx.doi.org/10.1364/OL.43.004069 | DOI Listing |
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View Article and Find Full Text PDFArticle Synopsis
- - An experimental method showcases how a dual-transverse-mode microsquare laser can effectively generate millimeter-wave (mmW) carriers by direct modulation at 6.7 GHz.
- - This approach produces multiple sidebands due to nonlinear modulation, achieving phase-locked lasing modes at a 40 GHz interval.
- - The result is high-quality mmW carriers reaching up to 47 GHz with low linewidth and consistent phase noise even after traveling 2.5 km through optical fiber.
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