Title :
Linewidth requirements for an optical MSK heterodyne/synchronous receiver
Author :
Papannareddy, R.
Author_Institution :
Dept. of Eng. & Technol., Purdue Univ., Westville, IN, USA
fDate :
7/1/1992 12:00:00 AM
Abstract :
The laser linewidth requirements for an optical MSK heterodyne/synchronous receiver are presented taking into account the effect of imperfect phase references. The performance of the receiver is evaluated in terms of the bit-error-rate, receiver sensitivity, and loop bandwidth. It is shown that an IF linewidth of less than 3.0*10/sup -4/ of the bit rate is required to avoid the power penalty of 0.5 dB with the RMS phase error of 0.11 radians. In comparison, the synchronous PSK, differential MSK, and DPSK heterodyne receivers are more tolerant to the laser phase noise than the synchronous MSK heterodyne receiver.<>
Keywords :
frequency shift keying; optical communication equipment; receivers; semiconductor junction lasers; spectral line breadth; CPFSK; IF linewidth; RMS phase error; bit-error-rate; imperfect phase references; laser linewidth requirements; laser phase noise; loop bandwidth; optical MSK heterodyne/synchronous receiver; performance; power penalty; sensitivity; Band pass filters; Bandwidth; Circuits; Laser noise; Low pass filters; Optical filters; Optical mixing; Optical receivers; Optical sensors; Phase noise;
Journal_Title :
Photonics Technology Letters, IEEE
