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01970nam a2200349Ia 4500 |
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10.1364-OE.456327 |
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220425s2022 CNT 000 0 und d |
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|a 10944087 (ISSN)
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|a Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD
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|b Optica Publishing Group (formerly OSA)
|c 2022
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|a 11
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| 856 |
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|z View Fulltext in Publisher
|u https://doi.org/10.1364/OE.456327
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|a We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD. © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement Journal © 2022
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|a Carrier phase synchronization
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|a Coherent transmission
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|a Fabry-Perot
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|a Fabry-Perot interferometers
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|a Fabry-Perot laser diode
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|a Homodyne receiver
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|a Injection locked
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|a Injection-locking
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|a Locking bandwidth
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|a Low-phase-noise
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|a Performance
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|a Phase noise
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|a Quadrature amplitude modulation
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|a Hirooka, T.
|e author
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|a Kan, T.
|e author
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|a Kasai, K.
|e author
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|a Nakazawa, M.
|e author
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|a Yoshida, M.
|e author
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| 773 |
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|t Optics Express
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