Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1989-01-03
1990-03-27
Griffin, Robert L.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455618, 370 3, G02F 200
Patent
active
049125265
ABSTRACT:
An optical frequency synthesizer and/or sweeper, whereby a coherent optical output light is obtained by using a wavelength stabilized laser and an optical phase locked loop wherein the frequency of the output has the characteristics of high accuracy, high stability and narrow spectral line width. The optical phase locked loop comprises a tunable laser, an optical frequency multiplier, an optical frequency shifter and an optical heterodyne detector, wherein the optical phase locked loop is capable of precisely outputting an arbitrary wavelength by feeding back an output optical frequency.
REFERENCES:
patent: 3593189 (1971-07-01), Buhrer
patent: 3718868 (1973-02-01), Pao et al.
patent: 3793595 (1974-02-01), Russo et al.
patent: 3842367 (1974-10-01), Schlossberg
patent: 3899748 (1975-08-01), Bodlaj
patent: 3908121 (1975-09-01), Riseberg et al.
patent: 3921099 (1975-11-01), Abrams et al.
patent: 3970839 (1976-07-01), Javan
patent: 4434490 (1984-02-01), Kavaya et al.
patent: 4579417 (1986-04-01), Ih
patent: 4716444 (1987-12-01), Mongeon et al.
Favre et al.; "Progress Towards Heterodyne-Type Single-Mode Fiber Communication Systems"; IEEE Journal of Quantum Electronics; vol. QE-17; No. 6; Jun. 1981; pp. 897-905.
Akiyama Koji
Iwaoka Hideto
Ohte Akira
Griffin Robert L.
Kojima Moonray
Salindong T.
Yokogawa Electric Corporation
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