Dynamic-Range Enhancement and Linearization in Electrooptically Modulated Coherent Optical Links

We present a general analysis of various electrooptic-modulation configurations on the system performance of a coherent analog optical link. We evaluate the dependence of the modulation scheme of the optical modulator and its properties on the system dynamic range and linearity. Linearization of a coherent optical link based on extending the length of a directional-coupler modulator is also described, illustrating the unique considerations when linearizing a coherent link. System-level modeling of an analog coherent optical link under different modulation configurations is presented.

[1]  G. Abbas,et al.  A dual-detector optical heterodyne receiver for local oscillator noise suppression , 1985, Journal of Lightwave Technology.

[2]  A. Yariv.  Optical electronics in modern communications , 1997 .

[3]  R. F. Tavlykaev,et al.  Highly linear Y-fed directional coupler modulator with low intermodulation distortion , 1999 .

[5]  Byoung-Joon Seo,et al.  Electrooptic Polymer Ring Resonator Modulation up to 165 GHz , 2007, IEEE Journal of Selected Topics in Quantum Electronics.

[7]  Charles Howard Cox,et al.  Analog Optical Links: Theory and Practice , 2006 .

[8]  Y. Wu,et al.  Multioctave high dynamic range up-conversion optical-heterodyned microwave photonic link , 2004, IEEE Photonics Technology Letters.

[9]  G. Betts.  High dynamic range coherent analog links using AM-SSB , 2004, The 17th Annual Meeting of the IEEELasers and Electro-Optics Society, 2004. LEOS 2004..

[10]  H. Matsumura,et al.  Switching characteristics of GaAs directional coupler optical switches. , 1986, Applied optics.

[12]  T. Kuri,et al.  Fiber-optic millimeter-wave uplink system incorporating remotely fed 60-GHz-band optical pilot tone , 1999 .

[13]  W.S.C. Chang,et al.  An electrooptic intensity modulator with improved linearity , 1991, IEEE Photonics Technology Letters.

[14]  Yifei Li,et al.  Receiver for a coherent fiber-optic link with high dynamic range and low noise figure , 2005, 2005 International Topical Meeting on Microwave Photonics.

[15]  C. R. Lima,et al.  Optical generation of millimeter-wave signals for fiber-radio systems using a dual-mode DFB semiconductor laser , 1995 .

[16]  Ken-ichi Kitayama,et al.  Fiber-optic millimeter-wave downlink system using 60 GHz-band external modulation , 1999 .

[17]  Tadao Nagatsuma,et al.  120-GHz wireless link using photonic techniques for generation, modulation, and emission of millimeter-wave signals , 2003 .

[18]  Ken-ichi Kitayama,et al.  Architectural Considerations of Fiber-Radio Millimeter-Wave Wireless Access Systems , 2000 .

[19]  S. Forrest,et al.  A high bandwidth analog heterodyne RF optical link with high dynamic range and low noise figure , 2004, IEEE Photonics Technology Letters.

[20]  William S. C. Chang,et al.  RF Photonic Technology in Optical Fiber Links , 2007 .

[21]  P.-L. Liu,et al.  In search of a linear electrooptic amplitude modulator , 1991, IEEE Photonics Technology Letters.

[22]  R. Alferness,et al.  Guided-wave optoelectronics , 1988 .

[23]  Xiupu Zhang,et al.  Impact of nonlinear distortion in radio over fiber systems with single-sideband and tandem single-sideband subcarrier modulations , 2006, Journal of Lightwave Technology.

[24]  R. Alferness,et al.  Characteristics of Ti-diffused lithium niobate optical directional couplers. , 1979, Applied optics.

[25]  M. L. Farwell,et al.  Simulating the response of coupled channel and interferometric modulator designs , 1995 .

[26]  W. B. Bridges,et al.  Distortion in linearized electrooptic modulators , 1995 .

[27]  Amnon Yariv,et al.  Optical Waves in Crystals , 1984 .

[28]  Joe C. Campbell,et al.  GaAs electro‐optic directional‐coupler switch , 1975 .

[29]  Lin Sun,et al.  Polymeric electro-optic modulator based on 1×2 Y-fed directional coupler , 2000 .