题名: | Electrically nulled interferometric sensor based on triangular phase modulation |
作者: | Chien,PY;Chang,YS;Chang,MW |
贡献者: | 光電科學研究所 |
关键词: | FIBER-OPTIC GYROSCOPE;FEEDBACK |
日期: | 1997 |
上传时间: | 2010-06-29 19:43:19 (UTC+8) |
出版者: | 中央大學 |
摘要: | We describe a technique for nulling the optical phase change induced by a fiber interferometric sensor. This scheme utilizes a triangular waveform to modulate an integrated optic phase modulator. The output signal of the interferometer is then mixed with a switching pulse train with proper pulse width and space. The switching pulse trains are generated from a triangular waveform and three comparators with different polarity. The operating principle is demonstrated by using a fiber optic gyroscope (FOG). A sensor system with wide dynamic range and linear scale factor has been successfully implemented by using this technique. |
關聯: | OPTICS COMMUNICATIONS |
显示于类别: | [光電科學研究所] 期刊論文
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