Beat note stabilization of a 10-60 GHz dual-polarization microlaser through optical down conversion.

Down-conversion of a high-frequency beat note to an intermediate frequency is realized by a Mach-Zehnder intensity modulator. Optically-carried microwave signals in the 10-60 GHz range are synthesized by using a two-frequency solid-state microchip laser as a voltage-controlled oscillator inside a digital phase-locked loop. We report an in-loop relative frequency stability better than 2.5×10⁻¹¹. The principle is applicable to beat notes in the millimeter-wave range.

[1]  P. Di Bin,et al.  Offset phase locking of Er,Yb:glass laser eigenstates for RF photonics applications , 2001, IEEE Photonics Technology Letters.

[2]  Marc Vallet,et al.  Dual-polarization microchip laser at 1.53 microm. , 2005, Optics letters.

[3]  Mario Dagenais,et al.  6-34 GHz offset phase-locking of Nd:YAG 1319 nm nonplanar ring lasers , 1989 .

[4]  J. Dawes,et al.  Tunable Terahertz Signals Using a Helicoidally Polarized Ceramic Microchip Laser , 2009, IEEE Photonics Technology Letters.

[5]  Dual-Polarization Spatial-Hole-Burning-Free Microchip Laser , 2009, IEEE Photonics Technology Letters.

[6]  Generation of flat power-envelope terahertz-wide modulation sidebands from a continuous-wave laser based on an external electro-optic phase modulator. , 2005, Optics letters.

[7]  L. Tsang,et al.  A sparse-matrix/canonical grid method for analyzing densely packed interconnects , 2000 .

[8]  Jianping Yao,et al.  Generation and distribution of a wide-band continuously tunable millimeter-wave signal with an optical external modulation technique , 2005, IEEE Transactions on Microwave Theory and Techniques.

[9]  José Capmany,et al.  Microwave photonics combines two worlds , 2007 .

[10]  M. Vallet,et al.  Dual-Frequency Laser at 1.5 $\mu$ m for Optical Distribution and Generation of High-Purity Microwave Signals , 2008, Journal of Lightwave Technology.

[11]  F Bondu,et al.  40 GHz photonic synthesizer using a dual-polarization microlaser , 2010, 2010 IEEE International Topical Meeting on Microwave Photonics.

[12]  Jianping Yao,et al.  Microwave photonics , 2022, Science China Information Sciences.

[13]  Peter R. Herczfeld,et al.  Rapidly tunable millimeter-wave optical transmitter for lidar-radar , 2001 .

[14]  Jianping Yao,et al.  Discriminator-Aided Optical Phase-Lock Loop Incorporating a Frequency Down-Conversion Module , 2006, IEEE Photonics Technology Letters.

[15]  Marc Brunel,et al.  RF photonic synthesiser , 2007 .