论文信息 - Laser frequency stabilization for high bit-rate FSK multichannel coherent systems

Laser frequency stabilization for high bit-rate FSK multichannel coherent systems

After reviewing some previously proposed laser frequency stabilization techniques for multichannel coherent systems, the authors present a simple, alternative method, making use of a scanning Fabry-Perot resonator. This technique, which proved effective in a preliminary experiment stabilizing a single DFB (distributed feedback) laser diode within less than 500 kHz, was successfully applied to the collective stabilization of a two-channel transmitter and can be easily extended to a multichannel configuration with a high number of channels. The same principle can operate, with some modification, in the presence of FSK (frequency shift keying) direct modulation. This has been experimentally demonstrated for a DFB laser that was directly modulated up to 2 Gb/s.<<ETX>>

P. Gambini | M. Puleo | E. Vezzoni

[1] H. Toba,et al. Optical FDM transmission technique , 1987 .

[2] W. A. Stallard,et al. Frequency-locking of external cavity semiconductor lasers using an optical comb generator , 1986 .

[3] D. W. Smith,et al. Evolutionary wavelength division multiplexed schemes for broadband networks , 1987 .

[4] Tsutomu Yanagawa,et al. Frequency stabilization of 1.5‐μm InGaAsP distributed feedback laser to NH3 absorption lines , 1984 .

[5] N. Shimosaka,et al. Frequency locking of FDM optical sources using widely tunable DBR LDs , 1988 .

[6] Michel Tetu,et al. Use of laser diodes locked to atomic transitions in multiwavelength coherent communications , 1988 .

[7] L. Stulz,et al. FDM-FSK star network with a tunable optical filter demultiplexer , 1987 .

[8] P. Kaiser,et al. Coherent lightwave systems for interoffice and loop-feeder applications , 1987 .

[9] R. Braun,et al. Coherent optical-fibre subscriber line , 1985 .

[10] L. Kazovsky. Multichannel coherent optical communications systems , 1987 .

[11] P. Gambini,et al. Laser frequency stabilization for multichannel coherent systems , 1988 .

[12] Gadi Eisenstein,et al. Frequency stabilisation of FDM optical signals , 1987 .

[13] C. A. Burrus,et al. Frequency stabilisation of FDM optical signals originating from different locations , 1987 .

[14] G. Hill,et al. The application of coherent optical techniques to wide-band networks , 1987 .