Two extended cavity laser diodes are phase-locked, thanks to an intra-cavity electrooptical modulator. The phase-locked loop bandwidth is on the order of 10 MHz, which is about twice larger than when the feedback correction is applied on the laser current. The phase noise reaches -120 dBrad/Hz at 10 kHz. This new scheme reduces the residual laser phase noise, which constitutes one of the domina...

In this paper we present an all-optical network architecture and a systolic routing protocol for it. The -dimensional optical butterfly ( ) network consists of nodes and edges. Processors are deployed at the level 0 (identical to level ) nodes of the network. Routing is based on the use of a cyclic control bit sequence and scheduling. The systolic routing protocol ensures that no electrooptical...

This paper reports on the optical generation of a rapidly tunable millimeter-wave subcarrier for lidar–radar. The millimeter-wave signal is generated by beating the output from two Nd : YVO4/MgO : LiNbO3 electrooptical monomode microchip laser sections realized monolithically in a single composite crystal. The device has a continuous tuning range up to 45 GHz. The measured chirp rate is 3816 TH...