Fully connectorized high-speed Ti:LiNbO 3 switch/modulator for time-division multiplexing and data encoding

We demonstrate a fully connectorized and packaged, 2×1 high-speed Ti:LiNbO 3 directional coupler switch suitable for both optical time-division multiplexing/demultiplexing and modulation at a 1.3- μm wavelength. The device has an intrinsic switching time of 60 ps and a small-signal 50-percent optical modulation depth bandwidth of 6 GHz. We have actively multiplexed two optical pulse streams with output non-return-to-zero (NRZ) center-to-center bit spacings of less than 100 ps, while incurring an average optical power penalty of only 0.5 dB. In addition, we have used this switch as a modulator to encode a pseudo-random data stream at 2-Gbit/s NRZ without degradation of the eye pattern or the semiconductor laser source spectrum.

[1]  Steven K. Korotky,et al.  High-speed low-loss low-drive-power travelling-wave optical modulator for λ = 1.32 μm , 1984 .

[2]  Steven K. Korotky,et al.  Low-Loss Ti:LiNbO3 Waveguide Bends at λ = 1.3 μm , 1982, Topical Meeting on Integrated and Guided-Wave Optics.

[3]  High-speed 1.55 μm single-longitudinal-mode ridge waveguide C3 laser , 1983 .

[4]  K. Ogawa,et al.  Very-high-speed back-illuminated InGaAs/InP PIN punch-through photodiodes , 1981 .

[5]  T. Rice,et al.  Low-loss coupling of multiple fiber arrays to single-mode waveguides , 1983, Journal of Lightwave Technology.

[6]  O. Mikami,et al.  Traveling wave optical modulator using a directional coupler LiNbO 3 waveguide , 1980 .

[7]  Pao-Lo Liu,et al.  An investigation of the frequency stability and temperature characteristics of 1.5 µm coupled-cavity injection lasers , 1984, IEEE Journal of Quantum Electronics.

[8]  M. Fujiwara,et al.  Integrated optical switch matrix for single-mode fiber networks , 1982 .

[9]  Steven K. Korotky,et al.  Time- and frequency-domain response of directional-coupler traveling-wave optical modulators , 1983 .

[10]  W. C. Young,et al.  Low-loss field-installable biconic connectors for single-mode fibers , 1983 .

[11]  C. C. Nelson,et al.  Experimental integrated optic circuit losses and fiber pigtailing of chips , 1981 .

[12]  L. Stulz,et al.  Low-threshold InGaAsP ridge waveguide lasers at 1.3 µm , 1983 .

[13]  Ivan P. Kaminow,et al.  Picosecond pulse generation from InGaAsP lasers at 1.25 and 1.3 µm by electrical pulse pumping , 1981 .

[14]  Steven K. Korotky,et al.  High-speed traveling-wave directional coupler switch/modulator for λ = 1.32 µm , 1983 .

[15]  F. Koyama,et al.  Dynamic spectral width of rapidly modulated 1.58 m GaInAsP/InP buried-heterostructure distributed-Bragg-reflector integrated-twin-guide lasers , 1981 .