Tunable V-Cavity Lasers Integrated With a Cyclic Echelle Grating for Distributed Routing Networks

We demonstrate a monolithic InP-based photonic integrated circuit (PIC) consisting of four tunable V-cavity lasers (VCLs), a cyclic echelle diffraction grating router (EDGR) and four semiconductor optical amplifiers (SOAs). Quantum-well intermixing (QWI) technique is used to produce three different bandgap energies on the chip. Single VCL with 30 nm tuning range at 1.3 μm wavelength band and up to...