Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1993-06-10
1994-11-15
Chilcot, Jr., Richard E.
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359125, 359181, 359182, 359191, 359111, H04B 1000
Patent
active
053653610
ABSTRACT:
A stabilization of the frequency spacing between the carrier frequency channels of the individual transmitters and the elimination of the risk of the channel crosstalk is obtained for an arbitrarily large number of transmitters in a coherent optical multi-channel arrangement which has a plurality of transmitters arranged in a group, a single coherent optical heterodyne arrangement for heterodyning a portion of the output of each of the transmitters with respective reference frequency lines and a control arrangement for controlling the channel carrier frequency of each of the transmitters by utilizing the heterodyne signal.
REFERENCES:
patent: 4989201 (1991-01-01), Glance
patent: 5016242 (1991-05-01), Tang
Kazovsky et al, "Experimental Releative Frequency Stabilization of a Set of Lasers Using Optical Phase-Locked Loops", IEEE Photonics Technology Letters, vol. 2, No. 7, Jul. 1990, pp. 516-518.
Noe et al, "Accurate Simple Optical Frequency Stabilization for a Coherent Multichannel System", IEEE Photonics Technology Letters, vol. 4, No. 5, May 1992, pp. 505-506.
Ishida et al, "0.04 Hz Relative Optical-Frequency Stability in a 1.5 .mu.m Distributed-Bragg-Reflector (DBR) Laser", IEEE Photonics Technology Letters, vol. 1, No. 12, Dec. 1989, pp. 452-454.
Ebberg Alfred
Noe Reinhold
Noll Bernd
Chilcot Jr. Richard E.
Negash Kinfe-Michael
Siemens Aktiengesellschaft
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