Title :
1.3/1.53 μm Mach-Zehnder wavelength duplexers for integrated optoelectronic transceiver modules
Author :
Walker, R.G. ; Urquhart, J. ; Bennion, I. ; Carter, A.C.
Author_Institution :
Plessey Res. Caswell Ltd., Allen Clark Res. Centre, Towcester, UK
fDate :
2/1/1990 12:00:00 AM
Abstract :
The authors discuss the design of Mach-Zehnder wavelength duplexers for 1300 nm and 1530 nm band-centres using InGaAsP/InP strip-loaded waveguides. They show that this device has a high inherent tolerance to fabrication and waveguide parameter variation and is therefore particularly suitable for `dead-reckoned´ fabrication in a low-cost optoelectronic transceiver chip for local area fibre networks. Using a novel configuration of concentrically curved waveguides, crosstalk better than -11.75 dB has been achieved in both channels. The performance of the constituent waveguide bends and directional couplers is also discussed
Keywords :
integrated optoelectronics; light interferometry; multiplexing equipment; optical communication equipment; optical waveguide components; transceivers; 1.3 micron; 1.53 micron; InGaAsP-InP strip loaded waveguides; Mach-Zehnder wavelength duplexers; concentrically curved waveguides; crosstalk; directional couplers; fabrication tolerance; integrated optoelectronic transceiver modules; local area fibre networks; waveguide bends; waveguide parameter variation tolerance;
Journal_Title :
Optoelectronics, IEE Proceedings J
