A BIDIRECTIONAL TRANSCEIVER PIC FOR PING-PONG LOCAL LOOP CONFIGURATIONS OPERATING AT 1.3-MU-M WAVELENGTH

We propose and demonstrate a simple, potentially low-cost, photonic In tegrated circuit that can operate as a transceiver in a Ping-Pong opti cal data-link configuration, The device Is designed for uncooled opera tion, with a gain section, a detector, and a beam expander inside a Fa bry-Perot cavity., The detector has a 1.4-mu m quaternary layer with a broad spectral responsivity range extending to 33 nn higher than the lasing wavelength of the substrate device. The transmitter can provide 8 dBm inside a single-mode fiber, and the beam expander relaxes the a lignment tolerance to a single-mode fiber.