20 Gbit/s high-performance integrated MQW TANDEM modulators andamplifier for soliton generation and coding |
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| Authors: | Souli N. Devaux F. Ramdane A. Krauz P. Ougazzaden A. Huet F. Carre M. Sorel Y. Kerdiles J.F. Henry M. Aubin G. Jeanney E. Montallant T. Moulu J. Nortier B. Thomine J.B. |
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| Affiliation: | Freance Telecon, CNET, Bagneux; |
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| Abstract: | We report on the integration of two InGaAsP-InGaAsP MQW electroabsorption ridge modulators and an amplifier on the same active layer. The two modulators are separated by a 500-μm ridge waveguide optical amplifier, in order to prevent electrical crosstalk, and to compensate for optical losses. The first modulator is used as a soliton generator, and the second codes the generated pulses. The amplifier showed 8.2-dB gain for 120-mA injected current. This allowed a low fiber to fiber insertion loss of 9 dB for the tandem. We present here for the first time to our knowledge, a 20 Gbit/s operation for a tandem-amplifier device, together with transmission experiments |
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