Bandwidth of Linearized Electrooptic Modulators
نویسندگان
چکیده
Many schemes have been proposed to make high dynamic range analog radio frequency (RF) photonic links by linearizing the transfer function of the link’s modulator. This paper studies the degrading effects of finite transit time and optical and electrical velocity dispersion on such linearization schemes. It further demonstrates that much of the lost dynamic range in some modulators may be regained by segmenting and rephasing the RF transmission line.
منابع مشابه
Distortion in Linearized Electrooptic Modulators
AbstructIntermodulation and harmonic distortion are calculated for a simple fiber-optic link with a representative set of link parameters and a variety of electrooptic modulators: simple Mach-Zehnder, linearized dual and triple Mach-Zehnder, simple directional coupler (two operating points), and linearized directional coupler with one and two dc electrodes. The resulting dynamic ranges, gains, ...
متن کاملHigh Operation Efficiency of Semiconductor Electrooptic Modulators in Advanced Lightwave Communication Systems
Device modeling, Integrated optics, Optical modulator, EO modulator, and Silicon optoelectronics Photonic links have been proposed to transport radio frequency (RF) signals over optical fiber communication systems. External optical modulation is commonly used in high performance RF photonic links. The practical use of optical fiber communication systems to transport RF signals is still limited ...
متن کاملCharacteristic Analysis of Traveling Wave Electrooptic Modulators on Lithium Niobate Substrate
The characteristic analysis of traveling wave electrooptic modulators on z-cut and x-cut lithium niobate substrates is carried out by using the finite element method based on a quasi-TEM approximation. The microwave effective index, the characteristic impedance, and the frequency dependent attenuations are calculated. The optical frequency response is also calculated and hence the 3-dB optical ...
متن کاملUltra High Speed LiNbO3 and Polymer Electrooptic Modulators in Lightwave Optical Access Communication Networks
In the present paper, we have been modeled parametrically and numerically the high speed of materials based electrooptic (EO) modulators in advanced optical communication systems. The modulated bandwidth is deeply and parametrically studied over wide ranges of the affecting sets of parameters via specially designed software which processes the interaction of causes and effects. The design param...
متن کاملTailoring the Electrooptic Response and Improving the Performance of Integrated LiNbO3 Modulators by Domain Engineering
Domain inversion (DI) is applied to traveling-wave integrated electrooptic (EO) LiNbO3 modulators to achieve predefined EO frequency response and improved performance with respect to standard single-domain (not domain-inverted) counterparts, including lower driving voltages and larger modulation bandwidths. In particular, when an appropriate poling (DI) is performed along the interaction length...
متن کامل