Title :
On the performance of optical phase-shift-keying with preamplify-feedforward-homodyne reception (comment and reply)
Author :
Shapiro, Jeffrey H. ; Kikuchi, Kazuro
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
fDate :
6/1/1992 12:00:00 AM
Abstract :
Recently K. Kikuchi (ibid., vol.4, p.195-7, 1992) proposed preamplify-feedforward-homodyne detection as a technique for realizing subshot-noise sensitivity in binary phase-shift keyed optical communication. It is demonstrated that this system does not yield subshot-noise performance in small-angle analog phase modulation, and it offers no error-probability reduction in binary phase-shift keying. In both cases, preamplify-feedforward-homodyne detection requires twice as many signal-beam photons as ordinary homodyne detection to achieve the same communication performance. K. Kikuchi responds to this letter and another letter challenging the bit-error-rate performance of the receiver he proposed (ibid., vol.4, p.195-7, Feb. 1992) and defends his results.<>
Keywords :
optical communication equipment; optical links; optical modulation; phase shift keying; receivers; sensitivity; PSK; binary phase-shift keyed optical communication; bit-error-rate performance; communication performance; error-probability reduction; optical phase-shift-keying; preamplify-feedforward-homodyne reception; signal-beam photons; small-angle analog phase modulation; subshot-noise sensitivity; Amplitude modulation; Intensity modulation; Optical modulation; Optical receivers; Optical sensors; Phase detection; Phase modulation; Phase shift keying; Preamplifiers; Signal to noise ratio;
Journal_Title :
Photonics Technology Letters, IEEE
