Title :
20 Gbit/s high-performance integrated MQW TANDEM modulators and amplifier for soliton generation and coding
Author :
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.
Author_Institution :
Freance Telecon, CNET, Bagneux, France
fDate :
6/1/1995 12:00:00 AM
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.
Keywords :
III-V semiconductors; codes; electro-optical modulation; electroabsorption; gallium arsenide; gallium compounds; indium compounds; integrated optics; optical crosstalk; optical losses; optical solitons; quantum well lasers; semiconductor quantum wells; waveguide lasers; 120 mA; 20 Gbit/s; 500 mum; 9 dB; InGaAsP-InGaAsP; MQW electroabsorption ridge modulators; amplifier; coding; electrical crosstalk; fiber to fiber insertion loss; generated pulses; high-performance integrated MQW TANDEM modulators; injected current; optical losses; soliton generation; soliton generator; tandem-amplifier device; transmission experiments; waveguide optical amplifier; Optical amplifiers; Optical crosstalk; Optical modulation; Optical pulse generation; Optical solitons; Optical waveguides; Pulse amplifiers; Pulse modulation; Quantum well devices; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
