Patent ID: 6498666
Filing Date: 2002-12-24
Classification: G02B,H01S,H04B

Abstract:
An integrated optical transceiver comprising a laser cavity formed between first and second feedback elements, a diffraction grating within the laser cavity for determining a lasing wavelength of the laser cavity and light receiving means, as least one of the feedback elements being partially transmissive at the lasing wavelength so as to permit the transceiver to emit radiation of the lasing wavelength, the diffraction grating being arranged to receive light through one of the feedback elements and transmit light of a selected wavelength, differing from the lasing wavelength, to the light receiving means, a first optical waveguide being provided to transmit and receive light to and from the diffraction grating at a first angle corresponding to an angle formed by the lasing wavelength received from the grating and a second optical waveguide being provided to receive light from the grating at a second angle corresponding to an angle formed by the selected wavelength is received from the grating.