| 基于斐索干涉仪的RZ-DPSK信号可调谐展宽技术研究 |
| 投稿时间：2019-12-12 修订日期：2020-05-17 点此下载全文 |
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| 基金项目:国家自然科学基金（61835005, 61822507, 61522501, 61475024, 61675004, 61705107, 61727817, 61775098, 61720106015, 61875248）资助。 |
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| 中文摘要:提出了一种新型的基于菲索干涉仪的归零差分相移键控（RZ-DPSK）信号的可调谐展宽技术，对10 Gb/s RZ-DPSK信号脉宽进行调节，占空比由33%连续展宽到75%。实验结果表明：在误码率为10-9的条件下，转换得到的50%、66%和75%占空比信号的功率代价分别为0.9dB、2.1dB和3.2dB。随着脉冲的展宽，信号消光比虽有减小，但都大于5 dB。进一步研究结果表示，该结构对波长透明，适用于不同波长信号的展宽。此外，该装置还可对不同速率的信号进行展宽。 |
| 中文关键词:差分相移键控 信号展宽 斐索干涉仪 |
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| Tunable Broadening of RZ-DPSK Signal based on Fizeau Interferometer |
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| Abstract:A new tunable broadening technique of RZ-DPSK signal based on Fizeau interferometer is proposed. The pulse width of 10 Gb/ s RZ-DPSK signal is adjusted, and the duty cycle of the signal is broadened from 33% to 75%. The experimental results show that the power penalty of the converted signal with the duty cycle of 50%, 66% and 75% is 0.9db, 2.1dB and 3.2db, respectively. With the pulse broadening, the extinction ratio of the signal decreases, but it is still greater than 5 dB. The structure is transparent to the wavelength and can apply to broaden different wavelength signals. In addition, the device can also broaden the signal with different rates. |
| keywords:DPSK signal broadening Fizeau Interferometer |
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