Abstract
High-speed intrasatellite networks are needed to interconnect units such
as synthetic aperture radars, high-resolution cameras, and fast
image-compression processors that produce data beyond gigabits per second. We
have developed a fiber-optic link, named SpaceFibre, which operates up to
3.125 Gb/s and is compatible with the existing SpaceWire network. The link
provides symmetrical, bidirectional, full-duplex, and point-to-point
communication. It employs 850-nm vertical-cavity surface emitting lasers,
radiation-hardened laser-optimized 50/125 mum graded-index fibers, and GaAs
p-i-n photo diodes. The transceiver electronics is realized using a
multilayer-ceramic-substrate technology that enables the passive alignment of
optical fibers to active devices. The SpaceFibre link demonstrator was tested
to transfer data at 2.5 Gb/s over 100 m with a bit error rate of less than
1.3middot10-14. Fiber-pigtailed modules were stressed with temperature
variations from -40degC to +85degC, vibrations up to 30 g, and mechanical
shocks up to 3900 g. The test results of 20 modules show that the SpaceFibre
link is a promising candidate for the upcoming high-speed intrasatellite
networks.
Original language | English |
---|---|
Pages (from-to) | 1213-1223 |
Journal | Journal of Lightwave Technology |
Volume | 25 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2007 |
MoE publication type | A1 Journal article-refereed |
Keywords
- III-V semiconductors
- gallium arsenide
- gradient index optics
- integrated optoelectronics
- laser cavity resonators
- optical fibre networks
- optical fibre testing
- optical receivers
- optical transmitters
- p-i-n photodiodes
- radiation hardening
- surface emitting lasers
- transceivers
- vibrations