Title :
Coherent optical fibre system with Zeeman lasers
Author :
Wu Yizun ; Tian Feng ; Yang Xinwei ; Yu Tong
Author_Institution :
Beijing Institute of Post and Telecommunications, Optical Fiber Communication Laboratory, Beijing, China
Abstract :
A coherent optical fibre system is studied in which two Zeeman lasers are used as local oscillator and transmitter laser, and which work independently of each other without any frequency tracking loop, which is usually indispensable in coherent optical systems. The system works satisfactorily. The intermediate frequency can be arbitrarily tuned from about 400 MHz to 4 MHz.
Keywords :
Zeeman effect; frequency stability; gas lasers; helium; neon; optical fibres; optical links; tuning; 4 to 400 MHz; He-Ne laser; Zeeman lasers; coherent optical fibre system; intermediate frequency; transmitter laser; tuning;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870036
