Product category:
Lasers
News Release from: Bookham | Subject: TL5000
Edited by the Electronicstalk Editorial
Team on 22 February 2008
Modulator tunes lasers up to 40Gbit/s
Reduced size InP MZ platform will allow Bookham to offer 40Gbit/s products in smaller footprints compared with existing 40Gbit/s offerings employing larger optics.
Bookham has developed and demonstrated an ultrasmall 5mm 40Gbit/s optical differential quadrature phase shift keying (ODQPSK) modulator chip, implemented through proprietary indium phosphide Mach Zehnder (InP MZ) technology Bookham will combine this functionality with its highly successful tunable laser in new products specifically for use in the growing 40Gbit/s market
This article was originally published on Electronicstalk on 12 Jul 2001 at 8.00am (UK)
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The reduced size InP MZ platform will allow Bookham to offer 40Gbit/s products in smaller footprints compared with existing 40Gbit/s offerings employing larger optics.
The Bookham InP TL5000 wideband tunable iTLA has been proven for use in both 10 and 40Gbit/s systems.
Bookham is now combining the tunable laser with 40Gbit/s MZ modulator chips from the company's UK 3in wafer fab to demonstrate innovation in the 40Gbit/s application space.
"The capability to offer high bit rate performance with our fully qualified, proven tunable laser and InP MZ modulator is crucial as vendors continue to evolve towards 40Gbit/s networks", says PLM Director, Adam Price.
"40Gbit/s roll out is still hampered by prohibitive pricing as we see 40Gbit/s systems costing in excess of 10 times a 10Gbit/s system".
"With our vertically integrated InP core technology and strength in the 10Gbit/s market, we are able to drive significant disruption in order to enable 40Gbit/s systems to be adopted at a cost point that allows widespread adoption".
"The InP MZ platform has the flexibility to implement a range of modulation schemes at 40Gbit/s, but it is our vision that ODQPSK, in which we have significant intellectual property, is the modulation format to allow the correct price positioning at 40Gbit/s, and the scalability to 100Gbit/s".
"ODQPSK also allows 40Gbit/s to be deployed onto a 50GHz grid, and demonstrates higher resilience to polarisation mode dispersion", continues Price.
"We have a proven InP capability to allow parallel modulator chip architectures to be implemented for the 40Gbit/s approach and have produced an InP ODQPSK chip structure that is only 5mm long".
"Traditional LiNbO3 technology, which uses discrete modulators coupled together to form parallel structures, cannot compete with production simplicity and footprint size", concludes Price.
The LambdaFlex range of tunable products will be on show at the Bookham booth at OFC/NFOEC in San Diego.
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