We propose a high power -tunable burst-mode transmitter with an output of over +10 dBm using a synchronized gain-clamping booster SOA, and demonstrate a 40-dB loss budget and 40-km reach symmetric 40-Gbit/s -tunable WDM/TDM-PON. OCIS codes: (060.2330) Fiber optics communications, (060.4510) Optical communications

In this paper we describe a CMOS differential active load and show how it can be used to create various useful structures. Tunable current gain stages and current squaring circuits are discussed. Their connection to a differential pairbased transconductor results in broad-range tunable transcon­ ductor structures suitable for adaptive continuous-time filtering applications and a four-quadrant v...

Continuous tuning over a 1.6 THz region in the near-infrared (842.5-848.6 nm) has been achieved with a hybrid ring/external cavity laser having a single, optically-driven grating reflector and gain provided by an injection-seeded semiconductor amplifier. Driven at 532 nm and incorporating a photonic crystal with an azobenzene overlayer, the reflector has a peak reflectivity of ~80% and tunes at...

Abstract—We propose new multiple-channel piezoelectric (PZT) actuated tunable optical filter based on racetrack multi-ring resonators for wavelength de-multiplexing network applications. We design tunable eight-channel wavelength de-multiplexer consisting of eight cascaded PZT actuated tunable multi-ring resonator filter with a channel spacing of 1.6nm. The filter for each channel is basically ...