20-GSample/s (10 GHz <formula formulatype="inline"><tex Notation="TeX">$\times$</tex></formula> 2 Clocks) Burst-Mode CDR Based on Injection Locking and Space Sampling for Multiaccess Networks
In this paper, we demonstrate a novel 20-GSample/s burst-mode clock and data recovery (BM-CDR) technique for optical multiaccess networks. The BM-CDR incorporates an injection-locking method for clock recovery and a clock phase aligner employing space sampling with two multiphase clocks at 10 GHz an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2012-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/6293835/ |
| Summary: | In this paper, we demonstrate a novel 20-GSample/s burst-mode clock and data recovery (BM-CDR) technique for optical multiaccess networks. The BM-CDR incorporates an injection-locking method for clock recovery and a clock phase aligner employing space sampling with two multiphase clocks at 10 GHz and a phase-picking algorithm for automatic clock phase acquisition. The design provides low latency and fast response without requiring a reset signal from the network layer. The BM-CDR achieves a bit error rate <; 10<sup>-10</sup> while featuring instantaneous (0-bit) phase acquisition for any phase step (±2π rad) between successive bursts. We also compare the data with probabilistic theoretical predictions to validate the experimental results. |
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| ISSN: | 1943-0655 |