Title :
Frequency stabilization of millimeter-wave subcarrier using laser heterodyne source and optical delay line
Author :
Doi, Yoshiyuki ; Fukushima, Seiji ; Ohno, Tetsuichiro ; Yoshino, Kaoru
Author_Institution :
NTT Photonics Labs., Kanagawa, Japan
Abstract :
A frequency stabilization technique for laser heterodyne sources that is applicable to fiber-radio systems is experimentally demonstrated, It employs an optical delay line as a frequency reference instead of a millimeter-wave oscillator. A subcarrier signal with a 12.3-MHz deviation was generated in a 10-GHz band by using commercial-grade DFB-LDs.
Keywords :
distributed feedback lasers; feedback; frequency control; frequency stability; laser beam applications; microwave links; optical delay lines; optical fibre communication; semiconductor lasers; 40 GHz; DFB laser diode; MM-wave subcarrier; commercial-grade DFB-LD; delay line frequency reference; fiber-radio systems; frequency stabilization technique; laser heterodyne source; millimeter-wave subcarrier; optical delay line; Delay lines; Fiber lasers; Frequency; High speed optical techniques; Laser feedback; Laser stability; Optical feedback; Optical mixing; Optical modulation; Optical variables control;
Journal_Title :
Photonics Technology Letters, IEEE
