InGaAsP/InP Grating-Assisted Vertical Coupler Filter and Its Applications
15 May 1992
We review the operation, performance and potential applications of the InGaAsP/InP waveguide grating-assisted vertical coupler filter. This broadly tunable, narrowband bandpass coupler is an attractive integrable element for a variety of photonic circuits. As an example, this device has been integrated as an intracavity filter to demonstrate a monolithic semiconductor laser with a record tuning range of 57nm.