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Linearization of Phase-Modulated Analog Optical Links Employing Interferometric Demodulation

vickyz 添加于 2010-3-23 16:08 | 1441 次阅读 | 0 个评论

作者
McKinney JD, Colladay K, Williams KJ
摘要
We present a linearized phase-modulated analog photonic link that utilizes parallel interferometric demodulation to suppress the third-order intermodulation distortion present in the link. By utilizing two parallel interferometers with different differential delays, we are able to balance the third-order distortion in the output photocurrent and achieve a fifth-order limited link response. We demonstrate shot noise-limited spurious-free dynamic ranges of ~ 130 dB (1-Hz bandwidth) at ~ 1 GHz for a total DC photocurrent Idc~ 8 mA and ~ 131 dB (1-Hz bandwidth) at ~ 5 GHz for a total DC photocurrent Idc ~ 7 mA . These results represent a nearly two order-of-magnitude improvement in dynamic range over conventional intensity- or phase-modulated analog photonic links for a fixed received photocurrent.
详细资料
- 文献种类: Journal Article
- 期刊名称: Journal of Lightwave Technology
- 期刊缩写: J. Lightwave Technol.
- 期卷页: 2009年第27卷第9期 1212-1220页
- ISBN: 0733-8724
学科领域信息系统 » 电子通信
标签

Linearization Analog Photonics
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