Publications

Wavelength stabilized single-mode lasers were realized-by on-chip coupling,of a ridge waveguide laser with two micro-ring resonators.

We report the development of current-controlled widely tunable laser diodes based on InP with photonic crystal reflectors.

The threshold current density of multiple and single quantum well lasers as a function of cavity length has been investigated.

Wideband optical wavelength translation across a record range from the near-infrared to the visible based on the Bragg scattering four-wave mixing process has been demonstrated in birefringent phot

We demonstrate the tunability of a 170 Gbit/s transmitter based on a quantum dash mode-locked Fabry-Perot laser.

We describe novel lightpath routing and protection schemes and demonstrate an inverse relationship between efficiency of wavelength usage and restoration time.

Optical sources for dense wavelength division multiplexed (DWDM) systems must produce constant wavelength and power output over a system lifetime despite aging-induced changes that affect both wave

The time evolution of uncontrolled amplifier gain transients due to dropped or cut dense wavelength division multiplexed channels in a broadband all-Raman amplified re-circulating loop experiment i

We present a simple method based on counter-heating to suppress thermally induced wavelength drift in burst-mode transmitters for TWDM transmissions in NG-PON2 access networks.

We present algorithms for the design of optimal virtual topologies embedded on wide-area wavelength-routed optical networks, The physical network architecture employs wavelength-conversion-enabled