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Packaged AlGaAs waveguide modulator array at 830 nm wavelength

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13 Author(s)
J. Bristow ; Technol. Center, Honeywell Inc., Bloomington, MN, USA ; J. Lehman ; M. Hibbs-Brenner ; Yue Liu
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We report a fully packaged AlGaAs waveguide modulator array with four individually addressable elements operating at approximately 830 nm wavelength and a clock speed of 1 GHz. The modulators rely largely on the linear electro-optic effect for operation, and have been packaged with an E/D MESFET driver with complementary 3.5 V outputs, and a thick-film ceramic bias network. The device is compact, using multimode interference devices for on-chip splitters and combiners and has a 4 mm electrode length. Extinction ratios in excess of 10 dB have been demonstrated over a temperature range from room temperature to 143°C. The modulator array has been packaged with a remote high power (100 mW) diode laser using stable single mode input coupling, while the modulator output is packaged with a multimode fiber array of 52.5 μm core diameter

Published in:

Journal of Lightwave Technology  (Volume:13 ,  Issue: 6 )