Title :
WORFNET: new links for fibre-microwave networks
Author :
Armistead, C.J. ; Davies, Peter A. ; Seeds, Alwyn J. ; Wale, M.J. ; Wight, D.R.
Abstract :
Both hybrid and monolithic integration techniques were investigated under the project. Hybrid integrated transmitters using semiconductor lasers and wideband lithium niobate modulators had been established pre-WORFNET, but the incorporation of gallium arsenide modulators had been untried. A transmitter was designed and built using a low noise DFB laser diode as the optical source which was lens coupled to a wide bandwidth GaAs modulator, the output being a singlemode optical fibre. The assembly of this unit was very successful with an excess coupling loss from the laser to the modulator waveguide of only 3 dB and a modulation bandwidth of >26 GHz
Keywords :
electro-optical modulation; integrated optoelectronics; optical fibre communication; optical transmitters; semiconductor lasers; 26 GHz; 3 dB; GaAs; LiNbO3; WORFNET; excess coupling loss; fibre-microwave networks; gallium arsenide modulators; hybrid integrated transmitters; lens coupled; low noise DFB laser diode; modulation bandwidth; modulator waveguide; monolithic integration techniques; optical source; semiconductor lasers; singlemode optical fibre; wide bandwidth GaAs modulator; wideband lithium niobate modulators;
Conference_Titel :
Optoelectronic Systems 'LINK' Programme, IEE Colloquium on
Conference_Location :
London
