Wavelength-uncommitted lasers

For the first time, to the authors´ knowledge, rare-earth doped fibre and semiconductor lasers have been passively configured to exploit the available wide gain-bandwidths with flexibility by simply connectorising the lasing medium and fibre reflection gratings. Lasing has been demonstrated over 93 nm from a robust single semiconductor laser module. BER measurements at 1.2 Gbit/s have been performed at 1300 nm