High-Speed Optical 1 $\times$ 4 Switch Based on Generalized Mach–Zehnder Interferometer With Hybrid Configuration of Silica-Based PLC and Lithium Niobate Phase-Shifter Array

We demonstrate a high-speed optical switch based on a generalized Mach-Zehnder interferometer with a hybrid configuration consisting of a silica-based planar lightwave circuit and lithium niobate phase shifters. The novel switch demonstrated here has one input and four output ports and a switching time of less than 0.1 mus, thanks to the fast response of the electrooptic phase shifters on the LN chip. The insertion loss and extinction ratio of the switch are 4.2 dB and more than 17 dB, respectively

[1]  R. Langenhorst,et al.  Fast 2 x 2 Mach-Zehnder optical space switches using InGaAsP-InP multiquantum-well structures , 1995, IEEE Photonics Technology Letters.

[2]  J. Yardley,et al.  Fast and low-power thermooptic switch on thin silicon-on-insulator , 2003, IEEE Photonics Technology Letters.

[3]  T. Goh,et al.  High performance 8-arrayed 1 × 8 optical switch based on planar lightwave circuit for photonic networks , 2002, 2002 28TH European Conference on Optical Communication.

[4]  M. Oguma,et al.  Low loss fully reconfigurable wavelength-selective optical 1/spl times/N switch based on transversal filter configuration using silica-based planar lightwave circuit , 2004, IEEE Photonics Technology Letters.

[5]  1×4 optical switch based on transversal filter configuration with constant power consumption , 2003 .

[6]  H.T. Mouftah,et al.  Photonic fast packet switching , 1993, IEEE Communications Magazine.

[7]  K. Nakahara,et al.  4-channel × 10-Gbit/s parallel optical transmitter and receiver modules for high-capacity very-short-reach applications , 2002, 2002 28TH European Conference on Optical Communication.

[8]  Mikitaka Itoh,et al.  Silica-based PLC 1/spl times/128 thermo-optic switch , 2001, Proceedings 27th European Conference on Optical Communication (Cat. No.01TH8551).

[9]  Gregory Raybon,et al.  Optical intensity modulation to 40 GHz using a waveguide electro‐optic switch , 1987 .

[10]  Piet Demeester,et al.  Multistage architectures for optical packet switching using SOA-based broadcast-and-select switches , 2003, OFC 2003 Optical Fiber Communications Conference, 2003..

[11]  R. C. Williamson,et al.  Submicrosecond submilliwatt silicon-on-insulator thermooptic switch , 2004, IEEE Photonics Technology Letters.