Transceiver for a bidirectional coherent optical transmission sy

Details Transceiver for a bidirectional coherent optical transmission sy Transceiver for a bidirectional coherent optical transmission sy

1989-08-10

1992-06-09

Eisenzopf, Reinhard J.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359113, 359191, H04B 1006

Patent

active

051212412

ABSTRACT:
A transceiver (11) for a bidirectional coherent optical transmission system with a fiber link (12) is provided with a laser (16) for transmitting a signal carrier wave, a modulator, a heterodyne or homodyne coherent detector (13), and a demodulator. To make such a transceiver (11) more economical on components, more compact in design, and less expensive to manufacture, the laser (16) is simultaneously used to transmit oscillator radiation for the heterodyne or homodyne coherent detector (13) of the same transceiver (11) and/or to optically amplify the signal carrier wave arriving from the remote transceiver (11) over the fiber link (12).

REFERENCES:
patent: 470474 (1987-11-01), Shikada
patent: 4882771 (1989-11-01), Rocks
patent: 4977620 (1990-12-01), Smith et al.
Atkins et al., "Application of Brillouin amplification in coherent optical transmission", Elcetronics Letters, vol. 22, No. 2, May 8, 1986, pp. 556-558.
"Electro-optic frequency translators and their applications in coherent optical fibre systems", BR Telecom Technol, vol. No. 4, Oct. 1986, W. A. Stallard et al.
"Opticher Uberlagerungsempfang:Die Technik der ubernachsten Generation glasfasergebunener Optischer Nachrichtensysteme", Der Fernmelde Ing. Feb. 85, N2.

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