Optical modulation techniques for length sensing and control of optical cavities

B. W. Barr; S. H. Huttner; J. R. Taylor; B. Sorazu; M. V. Plissi; K. A. Strain

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Optical modulation techniques for length sensing and control of optical cavities

机译：用于长度检测和控制光腔的光调制技术

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We present a discussion of the use of amplitude modulation techniques with regard to the length sensingand control of optical cavities for laser interferometric gravitational-wave detectors. Traditional radiofrequency amplitude modulation techniques automatically include phase modulation as a product of the modulation process, which can contaminate the signal after demodulation. In particular, with many length-sensing and control schemes the detected signals are demodulated in quadrature, which, in the case of a traditional amplitude modulation scheme, will result in offsets due to the additional phase modulation. We demonstrate this effect using a simple optical cavity configuration and show that minor adjustments to the modulator system can be used to compensate for the extra modulation components and provide additional flexibility.

机译：我们目前就激光干涉重力波检测器的长度传感和光腔控制方面对调幅技术的使用进行了讨论。传统的射频幅度调制技术会自动将相位调制作为调制过程的产物，这会在解调后污染信号。特别地，利用许多长度感测和控制方案，检测到的信号被正交解调，在传统的幅度调制方案的情况下，由于附加的相位调制，这将导致偏移。我们使用简单的光腔配置演示了这种效果，并表明对调制器系统的细微调整可用于补偿额外的调制分量并提供额外的灵活性。

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《Applied optics》 |2007年第31期|共7页
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B. W. Barr; S. H. Huttner; J. R. Taylor; B. Sorazu; M. V. Plissi; K. A. Strain;
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1. Optical modulation techniques for length sensing and control of optical cavities [J] . B. W. Barr, S. H. Huttner, J. R. Taylor, Applied Optics . 2007,第31期

机译：用于长度检测和控制光腔的光调制技术
2. Doppler broadened noise-immune cavity-enhanced optical heterodyne molecular spectrometry: optimum modulation and demodulation conditions, cavity length, and modulation order [J] . Patrick Ehlers, Isak Silander, Ove Axner Journal of the Optical Society of America, B. Optical Physics . 2014,第9期

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3. Wavelength re-generation and re-modulation using optical phase lock loop techniques for 100-Gb/s DQPSK up-stream transmission in DWDM passive optical networks [J] . Le Nguyen Binh, Martin Firus, Tran Nhut Khai Hoan Photonic network communications . 2010,第3期

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4. Optical fiber remote sensing system of methane at 1645nm using wavelength-modulation technique [C] . Sanguo Li, Thomas Koscica, Yan Zhang, Chemical and Biological Standoff Detection III . 2005

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5. Optical signal processing techniques and applications of optical phase modulation in high-speed communication systems. [D] . Deng, Ning. 2007

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6. Thermal Wavelength Measurement of Nanofluid in an Optical-Fiber Thermal Wave Cavity Technique to Determine the Thermal Diffusivity [O] . Monir Noroozi, Bijan Mohammadi, Shahidan Radiman, 2018

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7. Optical Modulation Techniques for Length Sensing and Control of Optical Cavities [O] . B. W. Barr, S. H. Huttner, J. R. Taylor, 2006

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8. Voltage Controlled Micro Cavity-Waveguide Coupling for Switching, Routing, and Modulation of Optical Waves [R] . Yariv, A. 2000

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Optical modulation techniques for length sensing and control of optical cavities

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