Compact High-Speed InP DQPSK Modulator

We present a novel InP differential quadrature phase-shift-keying modulator design comprised of two electroabsorption modulators in a three-arm interferometer. The modulator is extremely compact, measuring only 1500 mum times 250 mum. We demonstrate it at 21.4 Gb/s and investigate preliminary performance at 107 Gb/s.

[1]  I. Kang.  Interferometric Operation of an Electroabsorption Modulator for PSK Modulation and OOK Modulation with Performance Enhancements , 2006, 2006 European Conference on Optical Communications.

[2]  K.-O. Velthaus,et al.  1.55μm Mach-Zehnder Modulators on InP for Optical 40/80 Gbit/s Transmission Networks , 2006, 2006 International Conference on Indium Phosphide and Related Materials Conference Proceedings.

[3]  C. Dragone.  Efficient N*N star couplers using Fourier optics , 1989 .

[4]  Kawanishi Tetsuya,et al.  A bias condition monitor technique for the nested Mach-Zehnder modulator , 2006 .

[5]  R. Walker.  High-speed III-V semiconductor intensity modulators , 1991 .

[6]  David F. Welch,et al.  Large-Scale Photonic Integrated Circuits , 2007 .

[7]  C. W. Lentz,et al.  40-Gb/s tandem electroabsorption modulator , 2002, IEEE Photonics Technology Letters.

[8]  Robert A. Griffin,et al.  Integrated DQPSK transmitter for dispersion-tolerant and dispersion-managed DWDM transmission , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[9]  K. Yamada,et al.  EAM-integrated DFB laser modules with more than 40-GHz bandwidth , 2001, IEEE Photonics Technology Letters.

[10]  S. Chandrasekhar,et al.  Low-voltage high-speed travelling wave InGaAsP-InP phase modulator , 2004, IEEE Photonics Technology Letters.

[11]  T. Miyazaki,et al.  100-Gb/s DQPSK Transmission Experiment Without OTDM for 100G Ethernet Transport , 2006, Journal of Lightwave Technology.