Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1986-12-16
1990-01-09
Griffin, Robert L.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455618, 370 3, H04B 900
Patent
active
048933538
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: 3975628 (1976-08-01), Graves et al.
patent: 4434490 (1984-02-01), Kavaya et al.
patent: 4579417 (1986-04-01), Ih
patent: 4706300 (1987-10-01), Minemura et al.
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
Beek L. Van
Griffin Robert L.
Kojima Moonray
Yokogawa Electric Corporation
LandOfFree
Optical frequency synthesizer/sweeper does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical frequency synthesizer/sweeper, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical frequency synthesizer/sweeper will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-150212