The optical phase-shift-keying direct-detection receiver described here converts phase modulation to amplitude modulation (PM-AM) by using a high-resolution arrayed-waveguide grating. The amplitude of the converted signal is proportional to the derivative of the phase of the input signal. A 10-Gbit/s optical PSK-return-to-zero signal has been successfully transmitted through 100-km dispersion-shifted fiber by using the proposed PM-AM converter.
© 1999 Optical Society of America
(060.4510) Fiber optics and optical communications : Optical communications
(060.5060) Fiber optics and optical communications : Phase modulation
(070.6020) Fourier optics and signal processing : Continuous optical signal processing
(230.1150) Optical devices : All-optical devices
(230.7370) Optical devices : Waveguides
H. Takenouchi, H. Tsuda, C. Amano, T. Goh, K. Okamoto, and T. Kurokawa, "An optical phase-shift-keying direct-detection receiver using a high-resolution arrayed-waveguide grating," in Wavelength Division Multiplexing Components, D. Nolan, ed., Vol. 29 of OSA Trends in Optics and Photonics (Optical Society of America, 1999), paper 222.