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We report a pulsed waveguide laser working at 1944 nm, mode-locked with a saturable absorber consisting of a graphene film deposited on an output coupler mirror. The waveguide is created into a ceramic Thulium-doped Yttrium Aluminium Garnet by ultrafast laser inscription. Q-switched mode-locking is achieved, with 6.5 mW average output power and ∼7.8 GHz pulse rate. This is a convenient, compact, high...
We present a 35nm tunable laser by hybrid integration between a reflective semiconductor optical amplifier and an external cavity based on silica ring resonators and a Mach-Zehnder interferometer. We demonstrate a record low 2kHz line width.
We present a 75km-reach 100Gb/s DWDM transmitter based on a fully passive, hybrid assembly of a 10x10Gb/s laser array with a low-loss SiO2 AWG, and its optimization for thermal management, low cost and high yield.
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